Engine Drivers

Engine Drivers Practice Exams

Below you can select individual sections or full tests covering content likely to be found on the Bermuda Engine Driver exam. Check out the Engine Drivers License Guide for description of what each section covers.

This content is meant as a study aid only, and the author accepts no responsibility for accuracy. It is work in progress, please report any errors.

You can browse forward and backwards between the questions, and check/change your answers before you press the “Finish” button to see your results.

A special thank you to Cooper for help writing and uploading many of the test questions!

Engine Drivers – Arithmetic (Section 1)

Basic arithmetic. Addition, subtraction, multiplication, division.

1 / 10

Your motor is running at 2,200 RPM. You move the throttle back until it drops to 1,300 RPM. By how many RPMs have you reduced the motor?

800 RPM

900 RPM

1200 RP

600 RPM

2 / 10

Your tanks were full, holding 200 liters of fuel when you departed. You returned with 63 liters of fuel remaining. How much fuel did you use?

163

137

121

3 / 10

Diesel fuel costs $2.00 per liter. How much does 15 liters cost?

$20.00

$15.00

$25.00

$30.00

4 / 10

Your engine has 8 cylinders and produces 400 HP. How much does each cylinder produce?

100 HP

400 HP

40 HP

50HP

5 / 10

You need 9 quarts of oil for an oil change. You can only get pint-sized tins. How many would you need to buy? (1 quart = 2 pints)

16 pints

14 pints

10 pints

18 pints

6 / 10

A ton is 2,240 lbs. How many pounds is one and a half (1.5) tons?

5,600 lbs

3000 lbs

3,360 lbs

1,120 lbs

7 / 10

You used 23 liters of fuel each day for 5 days. How much fuel did you use in total?

125

115

121

8 / 10

You fuel tank holds 265 liters of fuel. How many gallons is this? (1 gallon = 4.5 litres)

456

58.9

265

1192.5

9 / 10

Your engine is fitted with a reduction gearbox with a 2.5 to 1 ratio. If you are running the engine at 2,500 RPM, how fast is the prop shaft spinning?

2500 RPM

1500 RPM

1250 RPM

1000 RPM

10 / 10

The fast ferry carried the following passengers over the weekend, how many passengers did it carry in total?
Friday – 212
Saturday – 422
Sunday – 287

921

896

824

941

Your score is

The average score is 88%

Engine Drivers – Electrical (Section 2)

Electrical systems including safety and troubleshooting

1 / 11

In a 12-volt battery there are:

3 cells

6 cells

24 cells

12 cells

2 / 11

When batteries are connected in parallel the voltage

Fluctuates

Increases

Remains the same

Decreases

3 / 11

Lead-acid batteries can give off what highly-flammable gas when charging?

Hydrogen

Nitrogen

Helium

Oxygen

4 / 11

What current does a generator produce?

Alternating

Parallel

Direct

Series

5 / 11

What is used to limit current overload in an electrical system?

Voltmeter

Rectifier

Fuse

Regulator

6 / 11

Resistors are measured in

Amps

Volts

Ohms

Watts

7 / 11

Voltmeters should be connected

In series to the battery or circuit being tested

In parallel to the battery or circuit being tested

To a regulator

To a rectifier

8 / 11

What converts AC to DC voltage?

Fuse

Regulator

Rectifier

Voltmeter

9 / 11

Grounding of appliances and tools is important to

Reduce voltage

Regulate the wattage

Reduce current

Prevent shock

10 / 11

Fuses are measured in

Watts

Ohms

Volts

Amps

11 / 11

What device is used to restrict voltage?

Ammeter

Regulator

Fuse

Rectifier

Your score is

The average score is 57%

Engine Drivers – General Boat Mechanics (Section 3)

1 / 15

What might cause an erratic knocking noise in a hydraulic system

Air bubbles in the system

Fluid pressure too high

Fluid pressure too low

Fluid is too warm

2 / 15

What is the main purpose of a gland (stuffing box) on a prop shaft or rudder stock?

Reduce shaft vibrations

Keep water out of the hull

Lubricate the bearing

Reduce friction on the bearing

3 / 15

Mating couplings have a spigot on one side and a socket on the other, in order to

Help make the coupling leak-proof

Ensure correct alignment

None of these

Make a stronger join

4 / 15

Bolts that connect engine/shaft couplings should have

Hose clamps to keep them tight

All of these

Cotter pins fitted

Lock washers fitted

5 / 15

An impellor pump is also called a

Centripetal pump

Centrifugal pump

Gravity pump

Rotating pump

6 / 15

Why do some rudders have a hole in the blade (known as a fenestrated rudder)

To make steering easier by reducing pressure on the rudder blade

To increase drag on the rudder

To reduce engine vibrations

To reduce rudder weight

7 / 15

What does a keel cooler do

Reduce drag on the keel

Cool the keel

Use surrounding water to dissipate engine heat

Improve air conditioning performance

8 / 15

If diesel is found in the bilge it may indicate that

Hydraulic system is leaking

Stuffing box is leaking

Gear box is leaking

Fuel line is leaking

9 / 15

Why do some heat exchangers use flat tubes instead of round ones

Cheaper to make

Space efficient

Better heat transfer

Easier to make

10 / 15

If water is found in the bilge it may indicate that

Gear box is leaking

Stuffing box is leaking

Fuel line is leaking

Hydraulic system is leaking

11 / 15

Impellor pump water leaks from the area around the shaft may indicate

Worn impellor

An impellor crack

Worn bearings/seals

Overheating

12 / 15

A Centrifugal pump is also called a

Impellor pump

Gravity pump

Centripetal pump

Rotating pump

13 / 15

If lube oil is found in the bilge it may indicate that

Hydraulic system is leaking

Gear box is leaking

Stuffing box is leaking

Fuel line is leaking

14 / 15

Why are Zincs fitted to heat exchangers?

none of these

to prevent electrolytic action on the tubes

to speed the flow of cooling water

to increase the amount of cooling surface

15 / 15

In a heat exchanger the fresh water flows on the outside of the tubes because

It reduces leaks in the tubes

This design is easier to clean

It needs higher operating pressure

None of the above

Your score is

The average score is 61%

Engine Drivers – Safety (Section 4)

Covering basic boat safety topics

1 / 12

Any belts on the engine should be:

Left open for quick adjustments

None of these

Left open to keep cool

Well guarded

2 / 12

What is the most important safety precaution to take before departing on a boat trip

Checking the sound system

Ensuring there are enough snacks for everyone

Leaving a float plan with a reliable person on land

Polishing the hull

3 / 12

Pumping bilge water containing oil into the water

doesn't bother turtles

Is an offence of the oil pollution act

is not considered dangerous.

Is an offence within one mile of shore

4 / 12

Cooking gas cylinders should be:

Disconnected when not in use

On the deck in ventilated compartment

All of these

Away from engines

5 / 12

What is the first thing you should do if someone falls overboard

Immediately jump into the water to save them

Shout "Man Overboard" and keep your eyes on the person at all times

Call the Coast Guard before taking any other action

Reverse the engine at full speed

6 / 12

A portable fuel tank should be refilled

On the dock out of the boat

with diesel only

In the boat

leaving room for oil

7 / 12

What is the primary indicator that dangerous weather, such as a thunderstorm, is approaching?

Seeing longtails flying toward the shore

A sudden drop in water temperature

Darkening clouds and a sudden shift in wind direction

Increase fish activity near the surface

8 / 12

Where should a boat’s fire extinguisher be stored

In the engine room next to the fuel tank

In a locked compartment to prevent theft

At the very bottom of the storage locker

In an accessible location away from the engine, where it can be reached quickly

9 / 12

By law, what is the minimum requirement for life jackets (PFDs) on board all vessels?

Life jackets are only required for those who cannot swim

One life jacket for every two people

One wearable life jacket for every person on board

Two life jackets per vessel regardless of the number of passengers

10 / 12

When two power-driven vessels are meeting head-on, what is the standard procedure

Both vessels should steer to port (left)

Both vessels must stop and wait for a signal

Both vessels should steer to starboard (right) and pass port-to-port

The smaller vessel has the right of way

11 / 12

Before a fire can start and continue to burn, there must be present

Fuel, heat and hydrogen

Fuel, heat and oxygen

Oxygen and oil

Paper, oily rags and heat

12 / 12

Which of the following is the best way to prevent Carbon Monoxide (CO) poisoning on a boat

Running the engine at high speeds at all times

Only boating during the daytime

Ensuring plenty of fresh air circulation and maintaining exhaust system

Keeping all windows and doors tightly shut

Your score is

The average score is 78%

Engine Drivers – Hull and Fittings (Section 5)

1 / 9

In a water lubricated stern tube, a slight amount of leakage out of the stern gland is allowed to

Cool the prop shaft

Flush out dirt and grip from the stern gland

None of these

Cool the gland packing

2 / 9

What are possible symptoms when a propellor comes loose on it’s shaft

Decreased motor RPMs

Loss of speed

Increased boat speed

Increased motor RPMs

3 / 9

The diameter of a propellor is

Used to attach the blades

Area of a circle described by the tips

Same at the hub and the blade tips

None of these

4 / 9

Suitable clearance should be left between the ends of packing rings to allow for

Easy removal

Air pockets

Water egress

Expansion and contraction

5 / 9

Propellor shafts are typically made of

Copper

Stainless steel

Bronze

Fibreglass

6 / 9

A cutlass bearing is cooled by

Freon

Water

Oil

Grease

7 / 9

What does a bilge keel do?

Save fuel

Reduce hull drag

Add speed to the boat

Reduce rolling

8 / 9

Galvanic action on a boat can be reduced by having

Adequate zincs

A two wire electric system

Stong electrical connections

Zincs at least 1 year old

9 / 9

Every intake and outflow through the hull below the waterline should have a

Strainer

Anti-galvanic coat of paint

Sea-cock or valve fitted

Brass Seal

Your score is

The average score is 49%

Engine Drivers – Diesel Engines (Section 6)

Questions specific to marine diesel engines

1 / 34

High lube oil consumption for an engine may be caused by

None of these

Oil leaking into the water of the cooler

Efficient oil scavenger

Water leaking into the oil sides of the engine

2 / 34

What is the purpose of a blower on a two stroke engine?

To force air into the cylinders

None of these

To cool the crankshaft seals

To make compression rings more efficient

3 / 34

The main bearing journal supports the:

Oil Pump

Piston

Crankshaft

Camshaft

4 / 34

What does a connecting rod do?

Transfer energy from the crankshaft to the piston during the exhaust stroke

Open and close cylinder valves

Regulate the fuel to air ratio in the cylinders

Transfer energy from the piston to the crankshaft during the downwards power stroke

5 / 34

In a four-stroke diesel the stroke after induction is

Exhaust

Power Stroke

Compression

6 / 34

In a four-stroke diesel the stroke before exhaust is

Compression

Induction

Power

7 / 34

A gudgeon pin is also known as a

Wrist pin

Split pin

Straight pin

Power pin

8 / 34

In a closed cooling system:

The salt water flushes the system

No heat exchanger is needed

Lower compression is required

The same cooling water is always reused

9 / 34

High lube oil consumption for an engine may be caused by

Worn piston rings

Worn cylinder wall

Worn valve guides

Worn stem seals

10 / 34

What does a rocker arm do?

Turn the crankshaft

Open or close the valves

Move the pushrod

Adjust engine timing

11 / 34

Which of the following is the most efficient cooling water temperature on a marine diesel engine>

152⁰ F

99⁰ F

125⁰ F

57⁰ F

12 / 34

Worn seals and bearings can result in (select all that apply)

Excessive lube oil consumption

Increased fuel usage

Hard starting

Low cylinder pressure

13 / 34

A flywheel ring gear has:

Crankshaft seals

Teeth on the outside

High compression temperature

A water cooling passage

14 / 34

What can reduce the effectiveness of lube oil? Select all correct answers.

Water seepage into lube oil system

Fuel seepage into lube oil system

Particle buildup in lube oil

High oil temperature

15 / 34

What causes backfires?

Low oil pressure

Fuel runoff valve

Ignition of unburnt fuel/air mix in exhaust

Heat exchanger

16 / 34

Compression rings are used on:

Oil pumps

Exhaust manifolds

Pistons

Water passages

17 / 34

How does an old-fashioned, manual governor control the engine speed?

Adjusts the fuel to suit the load requirements

Regulates operating temperature

Adds or removes friction on the crankshaft

Adjusts the throttle setting in the wheelhouse

18 / 34

A silencer/muffler on the exhaust

Requires two O-rings

Reduces exhaust noise

Reduces combustion termperature

Increases fuel consumption

19 / 34

Select all the ways you can start a marine diesel engine

Use an extension cord

Spin the propellor manually while in gear

Use an electric starter motor

Inject fuel by hand into cylinders

20 / 34

Which of these might cause black exhaust smoke

Too much lube oil

Cooling water blockage

Worn piston rings

Engine overload

21 / 34

The purpose of a supercharger on an engine is:

To decrease the fuel consumption

To increase the horsepower of the engine

To decrease the horsepower of the engine

To improve oil lubrication on the shaft

22 / 34

What may cause the engine to give off white smoke before cutting out?

Low oil pressure

No air in fuel filters

Worn injectors

Worn crankshaft seals

23 / 34

What is the piston action on the exhaust stroke of a four-stroke engine?

Moving upwards, exhaust valve open

Moving downwards, both valves closed

Moving upwards, both valves closed

Moving downwards, inlet valve open

24 / 34

What could cause the engine to run but lack power?

Ignition problems

Bad fuel

Any of these

Fouled prop

25 / 34

What is the purpose of a leak-off valve?

Allow transmission system lubrication

Return excess fuel to fuel tank

Filter lube oil system

Decrease fuel pressure

26 / 34

Reducing the counterweights on a crankshaft can

Improve fuel efficiency

Cause the crankshaft to become unbalanced

Increase speed

Increase RPMs

27 / 34

What is a typical compressed air temperature required for ignition in diesel engines?

1000⁰ F or more

350-550⁰ F

550-800⁰ F

650-900⁰ F

28 / 34

Approximately how often should you change the oil on a diesel engine?

Every 250 hours

Every 100 hours or once a year

Every 25 hours

Every 55 hours

29 / 34

What is needed for good combustion in a diesel engine cylinder (select all correct answers):

High compression

High temperature

Good fuel atomization

High lube oil pressure

30 / 34

What are the strokes of a two-stroke engine?

Induction and compression

Power and exhaust

None of these

Induction and exhaust

31 / 34

What may cause the oil pressure gauge not to rise after the engine is started?

Lube oil pipe leaking

Low lube oil level

Any of these

Malfunctioning pressure gauge

32 / 34

What cools the water leaving the engine in a closed cooling system?

Super charger

Alternator

Saltwater exchange

Heat Exchanger

33 / 34

In a four-stroke diesel the stroke after compression is

Induction

Power

Exhaust

34 / 34

What can cause erratic engine starting?

Bad electric connections

Low battery

Starter motor problems

Any of these

Your score is

The average score is 58%

/93

Engine Drivers – Full Practice Test

Full set of practice questions covering content likely to be encountered on the Bermuda Marine and Ports Engine Drivers Examination

1 / 93

Category: Section 1 – Arithmetic

Your engine is fitted with a reduction gearbox with a 2.5 to 1 ratio. If you are running the engine at 2,500 RPM, how fast is the prop shaft spinning?

1500 RPM

1250 RPM

1000 RPM

2500 RPM

2 / 93

Category: Section 1 – Arithmetic

The fast ferry carried the following passengers over the weekend, how many passengers did it carry in total?
Friday – 212
Saturday – 422
Sunday – 287

921

896

941

824

3 / 93

Category: Section 1 – Arithmetic

Your engine has 8 cylinders and produces 400 HP. How much does each cylinder produce?

100 HP

50HP

40 HP

400 HP

4 / 93

Category: Section 1 – Arithmetic

Diesel fuel costs $2.00 per liter. How much does 15 liters cost?

$15.00

$20.00

$25.00

$30.00

5 / 93

Category: Section 1 – Arithmetic

You fuel tank holds 265 liters of fuel. How many gallons is this? (1 gallon = 4.5 litres)

265

456

58.9

1192.5

6 / 93

Category: Section 1 – Arithmetic

Your motor is running at 2,200 RPM. You move the throttle back until it drops to 1,300 RPM. By how many RPMs have you reduced the motor?

900 RPM

800 RPM

1200 RP

600 RPM

7 / 93

Category: Section 1 – Arithmetic

You need 9 quarts of oil for an oil change. You can only get pint-sized tins. How many would you need to buy? (1 quart = 2 pints)

10 pints

14 pints

16 pints

18 pints

8 / 93

Category: Section 1 – Arithmetic

You used 23 liters of fuel each day for 5 days. How much fuel did you use in total?

125

115

121

9 / 93

Category: Section 1 – Arithmetic

A ton is 2,240 lbs. How many pounds is one and a half (1.5) tons?

1,120 lbs

3000 lbs

5,600 lbs

3,360 lbs

10 / 93

Category: Section 1 – Arithmetic

Your tanks were full, holding 200 liters of fuel when you departed. You returned with 63 liters of fuel remaining. How much fuel did you use?

137

121

163

11 / 93

Category: Section 3 – General Boat Mechanics

An impellor pump is also called a

Centrifugal pump

Centripetal pump

Rotating pump

Gravity pump

12 / 93

Category: Section 3 – General Boat Mechanics

What does a keel cooler do

Improve air conditioning performance

Cool the keel

Reduce drag on the keel

Use surrounding water to dissipate engine heat

13 / 93

Category: Section 3 – General Boat Mechanics

Why do some rudders have a hole in the blade (known as a fenestrated rudder)

To reduce rudder weight

To increase drag on the rudder

To make steering easier by reducing pressure on the rudder blade

To reduce engine vibrations

14 / 93

Category: Section 3 – General Boat Mechanics

Mating couplings have a spigot on one side and a socket on the other, in order to

Make a stronger join

Ensure correct alignment

None of these

Help make the coupling leak-proof

15 / 93

Category: Section 3 – General Boat Mechanics

What might cause an erratic knocking noise in a hydraulic system

Fluid pressure too low

Fluid is too warm

Air bubbles in the system

Fluid pressure too high

16 / 93

Category: Section 3 – General Boat Mechanics

If lube oil is found in the bilge it may indicate that

Hydraulic system is leaking

Fuel line is leaking

Stuffing box is leaking

Gear box is leaking

17 / 93

Category: Section 3 – General Boat Mechanics

Why are Zincs fitted to heat exchangers?

to prevent electrolytic action on the tubes

to speed the flow of cooling water

none of these

to increase the amount of cooling surface

18 / 93

Category: Section 3 – General Boat Mechanics

What is the main purpose of a gland (stuffing box) on a prop shaft or rudder stock?

Keep water out of the hull

Reduce friction on the bearing

Lubricate the bearing

Reduce shaft vibrations

19 / 93

Category: Section 3 – General Boat Mechanics

Bolts that connect engine/shaft couplings should have

All of these

Hose clamps to keep them tight

Lock washers fitted

Cotter pins fitted

20 / 93

Category: Section 3 – General Boat Mechanics

A Centrifugal pump is also called a

Gravity pump

Rotating pump

Centripetal pump

Impellor pump

21 / 93

Category: Section 3 – General Boat Mechanics

If diesel is found in the bilge it may indicate that

Stuffing box is leaking

Hydraulic system is leaking

Fuel line is leaking

Gear box is leaking

22 / 93

Category: Section 3 – General Boat Mechanics

In a heat exchanger the fresh water flows on the outside of the tubes because

It reduces leaks in the tubes

None of the above

It needs higher operating pressure

This design is easier to clean

23 / 93

Category: Section 3 – General Boat Mechanics

Impellor pump water leaks from the area around the shaft may indicate

Worn impellor

Overheating

An impellor crack

Worn bearings/seals

24 / 93

Category: Section 3 – General Boat Mechanics

If water is found in the bilge it may indicate that

Stuffing box is leaking

Fuel line is leaking

Hydraulic system is leaking

Gear box is leaking

25 / 93

Category: Section 3 – General Boat Mechanics

Why do some heat exchangers use flat tubes instead of round ones

Better heat transfer

Cheaper to make

Easier to make

Space efficient

26 / 93

Category: Section 2 – Electrical

Grounding of appliances and tools is important to

Prevent shock

Regulate the wattage

Reduce current

Reduce voltage

27 / 93

Category: Section 2 – Electrical

What is used to limit current overload in an electrical system?

Fuse

Regulator

Rectifier

Voltmeter

28 / 93

Category: Section 2 – Electrical

Resistors are measured in

Volts

Ohms

Watts

Amps

29 / 93

Category: Section 2 – Electrical

When batteries are connected in parallel the voltage

Decreases

Increases

Remains the same

Fluctuates

30 / 93

Category: Section 2 – Electrical

In a 12-volt battery there are:

6 cells

3 cells

24 cells

12 cells

31 / 93

Category: Section 2 – Electrical

Lead-acid batteries can give off what highly-flammable gas when charging?

Nitrogen

Helium

Hydrogen

Oxygen

32 / 93

Category: Section 2 – Electrical

What current does a generator produce?

Parallel

Alternating

Direct

Series

33 / 93

Category: Section 2 – Electrical

Fuses are measured in

Watts

Ohms

Amps

Volts

34 / 93

Category: Section 2 – Electrical

What converts AC to DC voltage?

Rectifier

Voltmeter

Regulator

Fuse

35 / 93

Category: Section 2 – Electrical

Voltmeters should be connected

In parallel to the battery or circuit being tested

To a rectifier

In series to the battery or circuit being tested

To a regulator

36 / 93

Category: Section 2 – Electrical

What device is used to restrict voltage?

Ammeter

Regulator

Rectifier

Fuse

37 / 93

Category: Section 6 – Diesel Engines

Select all the ways you can start a marine diesel engine

Use an electric starter motor

Inject fuel by hand into cylinders

Spin the propellor manually while in gear

Use an extension cord

38 / 93

Category: Section 6 – Diesel Engines

Which of the following is the most efficient cooling water temperature on a marine diesel engine>

152⁰ F

57⁰ F

99⁰ F

125⁰ F

39 / 93

Category: Section 6 – Diesel Engines

What may cause the oil pressure gauge not to rise after the engine is started?

Low lube oil level

Malfunctioning pressure gauge

Lube oil pipe leaking

Any of these

40 / 93

Category: Section 6 – Diesel Engines

What could cause the engine to run but lack power?

Ignition problems

Any of these

Bad fuel

Fouled prop

41 / 93

Category: Section 6 – Diesel Engines

A gudgeon pin is also known as a

Wrist pin

Split pin

Power pin

Straight pin

42 / 93

Category: Section 6 – Diesel Engines

The main bearing journal supports the:

Crankshaft

Camshaft

Piston

Oil Pump

43 / 93

Category: Section 6 – Diesel Engines

What cools the water leaving the engine in a closed cooling system?

Super charger

Heat Exchanger

Saltwater exchange

Alternator

44 / 93

Category: Section 6 – Diesel Engines

High lube oil consumption for an engine may be caused by

None of these

Oil leaking into the water of the cooler

Efficient oil scavenger

Water leaking into the oil sides of the engine

45 / 93

Category: Section 6 – Diesel Engines

A silencer/muffler on the exhaust

Requires two O-rings

Increases fuel consumption

Reduces exhaust noise

Reduces combustion termperature

46 / 93

Category: Section 6 – Diesel Engines

A flywheel ring gear has:

Teeth on the outside

High compression temperature

A water cooling passage

Crankshaft seals

47 / 93

Category: Section 6 – Diesel Engines

Worn seals and bearings can result in (select all that apply)

Increased fuel usage

Excessive lube oil consumption

Low cylinder pressure

Hard starting

48 / 93

Category: Section 6 – Diesel Engines

Which of these might cause black exhaust smoke

Worn piston rings

Engine overload

Too much lube oil

Cooling water blockage

49 / 93

Category: Section 6 – Diesel Engines

What does a connecting rod do?

Transfer energy from the piston to the crankshaft during the downwards power stroke

Transfer energy from the crankshaft to the piston during the exhaust stroke

Open and close cylinder valves

Regulate the fuel to air ratio in the cylinders

50 / 93

Category: Section 6 – Diesel Engines

What is the purpose of a blower on a two stroke engine?

To make compression rings more efficient

None of these

To force air into the cylinders

To cool the crankshaft seals

51 / 93

Category: Section 6 – Diesel Engines

What causes backfires?

Low oil pressure

Heat exchanger

Fuel runoff valve

Ignition of unburnt fuel/air mix in exhaust

52 / 93

Category: Section 6 – Diesel Engines

What is the piston action on the exhaust stroke of a four-stroke engine?

Moving upwards, both valves closed

Moving downwards, inlet valve open

Moving downwards, both valves closed

Moving upwards, exhaust valve open

53 / 93

Category: Section 6 – Diesel Engines

In a four-stroke diesel the stroke after compression is

Power

Exhaust

Induction

54 / 93

Category: Section 6 – Diesel Engines

What are the strokes of a two-stroke engine?

Induction and compression

Induction and exhaust

Power and exhaust

None of these

55 / 93

Category: Section 6 – Diesel Engines

In a closed cooling system:

The salt water flushes the system

No heat exchanger is needed

Lower compression is required

The same cooling water is always reused

56 / 93

Category: Section 6 – Diesel Engines

What does a rocker arm do?

Turn the crankshaft

Move the pushrod

Open or close the valves

Adjust engine timing

57 / 93

Category: Section 6 – Diesel Engines

How does an old-fashioned, manual governor control the engine speed?

Adjusts the fuel to suit the load requirements

Adjusts the throttle setting in the wheelhouse

Adds or removes friction on the crankshaft

Regulates operating temperature

58 / 93

Category: Section 6 – Diesel Engines

What may cause the engine to give off white smoke before cutting out?

No air in fuel filters

Low oil pressure

Worn crankshaft seals

Worn injectors

59 / 93

Category: Section 6 – Diesel Engines

In a four-stroke diesel the stroke after induction is

Compression

Power Stroke

Exhaust

60 / 93

Category: Section 6 – Diesel Engines

What can cause erratic engine starting?

Any of these

Low battery

Starter motor problems

Bad electric connections

61 / 93

Category: Section 6 – Diesel Engines

High lube oil consumption for an engine may be caused by

Worn valve guides

Worn piston rings

Worn cylinder wall

Worn stem seals

62 / 93

Category: Section 6 – Diesel Engines

In a four-stroke diesel the stroke before exhaust is

Compression

Power

Induction

63 / 93

Category: Section 6 – Diesel Engines

Compression rings are used on:

Water passages

Pistons

Exhaust manifolds

Oil pumps

64 / 93

Category: Section 6 – Diesel Engines

What is needed for good combustion in a diesel engine cylinder (select all correct answers):

High temperature

Good fuel atomization

High lube oil pressure

High compression

65 / 93

Category: Section 6 – Diesel Engines

Approximately how often should you change the oil on a diesel engine?

Every 25 hours

Every 250 hours

Every 55 hours

Every 100 hours or once a year

66 / 93

Category: Section 6 – Diesel Engines

What is the purpose of a leak-off valve?

Return excess fuel to fuel tank

Decrease fuel pressure

Allow transmission system lubrication

Filter lube oil system

67 / 93

Category: Section 6 – Diesel Engines

What can reduce the effectiveness of lube oil? Select all correct answers.

Particle buildup in lube oil

High oil temperature

Fuel seepage into lube oil system

Water seepage into lube oil system

68 / 93

Category: Section 6 – Diesel Engines

Reducing the counterweights on a crankshaft can

Cause the crankshaft to become unbalanced

Increase RPMs

Increase speed

Improve fuel efficiency

69 / 93

Category: Section 6 – Diesel Engines

The purpose of a supercharger on an engine is:

To decrease the fuel consumption

To decrease the horsepower of the engine

To increase the horsepower of the engine

To improve oil lubrication on the shaft

70 / 93

Category: Section 6 – Diesel Engines

What is a typical compressed air temperature required for ignition in diesel engines?

550-800⁰ F

650-900⁰ F

1000⁰ F or more

350-550⁰ F

71 / 93

Category: Section 4 – Safety

Cooking gas cylinders should be:

Away from engines

All of these

On the deck in ventilated compartment

Disconnected when not in use

72 / 93

Category: Section 4 – Safety

After fueling allow the boat to ventilate for at least (check answer)

20 Minutes

2 Minutes

1 Minute

5 Minutes

73 / 93

Category: Section 4 – Safety

What is the first thing you should do if someone falls overboard

Reverse the engine at full speed

Call the Coast Guard before taking any other action

Immediately jump into the water to save them

Shout "Man Overboard" and keep your eyes on the person at all times

74 / 93

Category: Section 4 – Safety

Which of the following is the best way to prevent Carbon Monoxide (CO) poisoning on a boat

Keeping all windows and doors tightly shut

Ensuring plenty of fresh air circulation and maintaining exhaust system

Running the engine at high speeds at all times

Only boating during the daytime

75 / 93

Category: Section 4 – Safety

When two power-driven vessels are meeting head-on, what is the standard procedure

Both vessels should steer to starboard (right) and pass port-to-port

Both vessels should steer to port (left)

Both vessels must stop and wait for a signal

The smaller vessel has the right of way

76 / 93

Category: Section 4 – Safety

Where should a boat’s fire extinguisher be stored

In an accessible location away from the engine, where it can be reached quickly

At the very bottom of the storage locker

In a locked compartment to prevent theft

In the engine room next to the fuel tank

77 / 93

Category: Section 4 – Safety

Before a fire can start and continue to burn, there must be present

Fuel, heat and oxygen

Oxygen and oil

Paper, oily rags and heat

Fuel, heat and hydrogen

78 / 93

Category: Section 4 – Safety

How often does a refillable portable fire extinguisher need to be inspected/checked?

Every 24 months

Every 9 months

Every 12 months

Every 6 months

79 / 93

Category: Section 4 – Safety

A portable fuel tank should be refilled

leaving room for oil

with diesel only

In the boat

On the dock out of the boat

80 / 93

Category: Section 4 – Safety

By law, what is the minimum requirement for life jackets (PFDs) on board all vessels?

Two life jackets per vessel regardless of the number of passengers

One wearable life jacket for every person on board

Life jackets are only required for those who cannot swim

One life jacket for every two people

81 / 93

Category: Section 4 – Safety

What is the primary indicator that dangerous weather, such as a thunderstorm, is approaching?

Seeing longtails flying toward the shore

Darkening clouds and a sudden shift in wind direction

Increase fish activity near the surface

A sudden drop in water temperature

82 / 93

Category: Section 4 – Safety

Pumping bilge water containing oil into the water

Is an offence within one mile of shore

doesn't bother turtles

Is an offence of the oil pollution act

is not considered dangerous.

83 / 93

Category: Section 4 – Safety

Any belts on the engine should be:

None of these

Left open to keep cool

Left open for quick adjustments

Well guarded

84 / 93

Category: Section 4 – Safety

What is the most important safety precaution to take before departing on a boat trip

Polishing the hull

Ensuring there are enough snacks for everyone

Checking the sound system

Leaving a float plan with a reliable person on land

85 / 93

Category: Section 5 – Hull and Fittings

Every intake and outflow through the hull below the waterline should have a

Anti-galvanic coat of paint

Brass Seal

Strainer

Sea-cock or valve fitted

86 / 93

Category: Section 5 – Hull and Fittings

Galvanic action on a boat can be reduced by having

A two wire electric system

Adequate zincs

Stong electrical connections

Zincs at least 1 year old

87 / 93

Category: Section 5 – Hull and Fittings

In a water lubricated stern tube, a slight amount of leakage out of the stern gland is allowed to

Cool the gland packing

Cool the prop shaft

Flush out dirt and grip from the stern gland

None of these

88 / 93

Category: Section 5 – Hull and Fittings

Suitable clearance should be left between the ends of packing rings to allow for

Expansion and contraction

Water egress

Easy removal

Air pockets

89 / 93

Category: Section 5 – Hull and Fittings

What does a bilge keel do?

Save fuel

Reduce hull drag

Reduce rolling

Add speed to the boat

90 / 93

Category: Section 5 – Hull and Fittings

A cutlass bearing is cooled by

Grease

Freon

Water

Oil

91 / 93

Category: Section 5 – Hull and Fittings

The diameter of a propellor is

Same at the hub and the blade tips

Area of a circle described by the tips

Used to attach the blades

None of these

92 / 93

Category: Section 5 – Hull and Fittings

Propellor shafts are typically made of

Fibreglass

Bronze

Stainless steel

Copper

93 / 93

Category: Section 5 – Hull and Fittings

What are possible symptoms when a propellor comes loose on it’s shaft

Increased motor RPMs

Increased boat speed

Decreased motor RPMs

Loss of speed

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