Retarder Engine Exhaust Brakes lvl-4

Jake engine brakes alter which engine stroke:

Intake

Compression

Power

Exhaust

Correct! Wrong!

The engine brake solenoid:

Is replaceable

Uses O rings to seal oil flow

Is turned on by switches on the dash

All of the above

Correct! Wrong!

The brakesaver or retarder brake works similar to:

A torque converter

A Jake brake

A throttle valve

A parking brake

Correct! Wrong!

A Jake brake operates on the principle of opening the _ _ just before the cylinder is about to fire.

Intake valve

Exhaust valve

Delivery valve

Secondary valve

Correct! Wrong!

A brakesaver device is supplied, actuated and lubricated by oil from:

Hydraulic oil supply

Transmission oil reservoir

Engine oil crankcase

Any of the above

Correct! Wrong!

Engine brakes function by altering the normal operation of the ______________ stroke of a diesel engine.

Intake

Compression

Power

Exhaust

Correct! Wrong!

The clearance between the exhaust valve and/or valve bridge to the engine brake slave piston is the same for all engines and engine brake models.

True

False

Correct! Wrong!

The auto lash screw adjustment, which is one of the adjustments required for an engine brake, is the clearance setting that would:

Hold the intake valve open slightly

Hold the exhaust valve open slightly

Increase valve clearance

Decrease valve clearance

Correct! Wrong!

The engine brake spool valve, located in the valve cover actuator, traps the oil between the:

Solenoid and accumulator

Master and slave piston

Solenoid and master piston

None of the above

Correct! Wrong!

Engine brakes will function better, and have more braking effect at low engine RPM''s.

True

False

Correct! Wrong!

Engine brake operation may be affected by incorrect fuel injector adjustment on some engines.

True

False

Correct! Wrong!

When the spool in the retarder control valve is moved to the OFF position a _____________ sound should be heard.

Bubbling

Clunk

Loud

Hissing

Correct! Wrong!

During normal operations, certain controls are required to ensure engine brakes on non-electronic engines are energized only when required and all conditions are met. These controls include. 1) an off/on dash switch. 2) a throttle idle validation switch and 3) a ____________ switch.

Brake

High, low

Clutch

Pilot

Correct! Wrong!

An operator complains of no engine brake action. This may be caused by:

No supply voltage

Open clutch switch

Open throttle switch

All of the above

Correct! Wrong!

An operator complains that it seems like one cylinder on an engine equipped with an engine brake seems to stay on for a short time, with a POP, POP, POP, POP after the operational switch is shut off. What would be the most likely cause?

A faulty solenoid

A broken spool spring

A high oil pressure

A shorted or grounded dash switch

Correct! Wrong!

Exhaust brakes mounted on the exhaust systems of equipment, provide retarding force or action by creating:

Low exhaust back pressure'

High exhaust back pressure

Exhaust turbulence

Higher turbo boost action

Correct! Wrong!

Exhaust brakes require the use of a clutch switch to prevent the engine from stalling.

True

False

Correct! Wrong!

Exhaust brakes never require any adjustment:

True

False

Correct! Wrong!

The location for retarders found on a Cat engines are:

Between the engine and transmission

Behind transmission

Between the clutch and transmission

In the oil pan

Correct! Wrong!

The system is designed so that some oil always flows through the Brake saver control valve into the braking chamber when the pump is engaged, even when the retarder is NOT being used:

True

False

Correct! Wrong!

On a Caterpillar engine, the brakesaver device attaches:

To the rear of the transmission

To the front of the engine

Before the flywheel housing

To the frame mount brackets

Correct! Wrong!

It is possible to have a piece of equipment equipped with an engine brake, an exhaust brake and an engine retarder systems.

True

False

Correct! Wrong!

Jakobs brakes, C-brakes, Pac-brakes and Maxitard engine brake systems are completely different in their principal of operation:

True

False

Correct! Wrong!

To replace the diaphragm in the control valve of an engine mounted retarder, it is necessary to drain the crankcase.

True

False

Correct! Wrong!

The operator can manually modulate the position of the spool valve in the brakesaver''s valve body by varying the amount of:

Engine oil pressure

Transmission oil pressure

Power steering oil pressure

Air pressure

Correct! Wrong!

Technician A says that when used in manual mode, the retarder braking force can be gradually increased or decreased by the driver. Technician B says that when in automatic mode, the retarder goes to the set position for retard when activated. Who is correct?

Technician A

Technician B

Both A and B

Neither A or B

Correct! Wrong!

What braking system uses a sliding gate valve?

Cooling system

Exhaust brake system

Air conditioning system

Electrical system

Correct! Wrong!

Technician A says that the retarder device can be operated by an external oil supply, seperate from the engine cranckcase. Technician B says that the oil for the retarder device can be supplied by an oil pump attached to the engine oil crankcase and uses the same oil used to lube the engine. Who is correct.

Technician A

Technician B

Both A and B

Neither A or B

Correct! Wrong!

Technician A says that when clunk testing a retarder, the clunk that is heard is the spool valve being returned to its off position by the spool valve spring. Technician B says that engine RPM has NO affect on the retarding ability of the brakesaver. Who is correct?

Technician A

Technician B

Both A and B

Neither A or B

Correct! Wrong!

Technician A says that the Cummins ISX engine has cam lobes dedicated to engine brake operation. Technician B says that on the Cummins ISX engine that it is possible to have a six position brake. Who is correct?

Technician A

Technician B

Both A and B

Neither A or B

Correct! Wrong!

Retarder Engine Exhaust Brakes lvl-4

Jake engine brakes alter which engine stroke:

The engine brake solenoid:

The brakesaver or retarder brake works similar to:

A Jake brake operates on the principle of opening the _ _ just before the cylinder is about to fire.

A brakesaver device is supplied, actuated and lubricated by oil from:

Engine brakes function by altering the normal operation of the ______________ stroke of a diesel engine.

The clearance between the exhaust valve and/or valve bridge to the engine brake slave piston is the same for all engines and engine brake models.

The auto lash screw adjustment, which is one of the adjustments required for an engine brake, is the clearance setting that would:

The engine brake spool valve, located in the valve cover actuator, traps the oil between the:

Engine brakes will function better, and have more braking effect at low engine RPM''s.

Engine brake operation may be affected by incorrect fuel injector adjustment on some engines.

When the spool in the retarder control valve is moved to the OFF position a _____________ sound should be heard.

During normal operations, certain controls are required to ensure engine brakes on non-electronic engines are energized only when required and all conditions are met. These controls include. 1) an off/on dash switch. 2) a throttle idle validation switch and 3) a ____________ switch.

An operator complains of no engine brake action. This may be caused by:

An operator complains that it seems like one cylinder on an engine equipped with an engine brake seems to stay on for a short time, with a POP, POP, POP, POP after the operational switch is shut off. What would be the most likely cause?

Exhaust brakes mounted on the exhaust systems of equipment, provide retarding force or action by creating:

Exhaust brakes require the use of a clutch switch to prevent the engine from stalling.

Exhaust brakes never require any adjustment:

The location for retarders found on a Cat engines are:

The system is designed so that some oil always flows through the Brake saver control valve into the braking chamber when the pump is engaged, even when the retarder is NOT being used:

On a Caterpillar engine, the brakesaver device attaches:

It is possible to have a piece of equipment equipped with an engine brake, an exhaust brake and an engine retarder systems.

Jakobs brakes, C-brakes, Pac-brakes and Maxitard engine brake systems are completely different in their principal of operation:

To replace the diaphragm in the control valve of an engine mounted retarder, it is necessary to drain the crankcase.

The operator can manually modulate the position of the spool valve in the brakesaver''s valve body by varying the amount of:

Technician A says that when used in manual mode, the retarder braking force can be gradually increased or decreased by the driver. Technician B says that when in automatic mode, the retarder goes to the set position for retard when activated. Who is correct?

What braking system uses a sliding gate valve?

Technician A says that when clunk testing a retarder, the clunk that is heard is the spool valve being returned to its off position by the spool valve spring. Technician B says that engine RPM has NO affect on the retarding ability of the brakesaver. Who is correct?

Technician A says that the Cummins ISX engine has cam lobes dedicated to engine brake operation. Technician B says that on the Cummins ISX engine that it is possible to have a six position brake. Who is correct?

Success!

Heavy-Duty Mechanic - Trucks & Equipment

Jake engine brakes alter which engine stroke:

The engine brake solenoid:

The brakesaver or retarder brake works similar to:

A Jake brake operates on the principle of opening the ___________ ___________ just before the cylinder is about to fire.

A brakesaver device is supplied, actuated and lubricated by oil from:

Engine brakes function by altering the normal operation of the ______________ stroke of a diesel engine.

The clearance between the exhaust valve and/or valve bridge to the engine brake slave piston is the same for all engines and engine brake models.

The auto lash screw adjustment, which is one of the adjustments required for an engine brake, is the clearance setting that would:

The engine brake spool valve, located in the valve cover actuator, traps the oil between the:

Engine brakes will function better, and have more braking effect at low engine RPM''s.

Engine brake operation may be affected by incorrect fuel injector adjustment on some engines.

When the spool in the retarder control valve is moved to the OFF position a _____________ sound should be heard.

During normal operations, certain controls are required to ensure engine brakes on non-electronic engines are energized only when required and all conditions are met. These controls include. 1) an off/on dash switch. 2) a throttle idle validation switch and 3) a ____________ switch.

An operator complains of no engine brake action. This may be caused by:

An operator complains that it seems like one cylinder on an engine equipped with an engine brake seems to stay on for a short time, with a POP, POP, POP, POP after the operational switch is shut off. What would be the most likely cause?

Exhaust brakes mounted on the exhaust systems of equipment, provide retarding force or action by creating:

Exhaust brakes require the use of a clutch switch to prevent the engine from stalling.

Exhaust brakes never require any adjustment:

The location for retarders found on a Cat engines are:

The system is designed so that some oil always flows through the Brake saver control valve into the braking chamber when the pump is engaged, even when the retarder is NOT being used:

On a Caterpillar engine, the brakesaver device attaches:

It is possible to have a piece of equipment equipped with an engine brake, an exhaust brake and an engine retarder systems.

Jakobs brakes, C-brakes, Pac-brakes and Maxitard engine brake systems are completely different in their principal of operation:

To replace the diaphragm in the control valve of an engine mounted retarder, it is necessary to drain the crankcase.

The operator can manually modulate the position of the spool valve in the brakesaver''s valve body by varying the amount of:

Technician A says that when used in manual mode, the retarder braking force can be gradually increased or decreased by the driver. Technician B says that when in automatic mode, the retarder goes to the set position for retard when activated. Who is correct?

What braking system uses a sliding gate valve?

Technician A says that when clunk testing a retarder, the clunk that is heard is the spool valve being returned to its off position by the spool valve spring. Technician B says that engine RPM has NO affect on the retarding ability of the brakesaver. Who is correct?

Technician A says that the Cummins ISX engine has cam lobes dedicated to engine brake operation. Technician B says that on the Cummins ISX engine that it is possible to have a six position brake. Who is correct?

Success!

Heavy-Duty Mechanic - Trucks & Equipment

A Jake brake operates on the principle of opening the _ _ just before the cylinder is about to fire.