Safety
True/False
Diesel Engines
Shop Practices, Tools, and Equipment
Drive Trains
100
What is the primary purpose of a fire extinguisher in a diesel shop?
To put out small fires before they spread
100
A Class B fire extinguisher is used for fires involving flammable liquids like diesel fuel.
True
100
What is the primary function of the turbocharger in a diesel engine?
To increase air intake pressure
100
Which of the following is not a common type of fuel line fitting?
A) Flare
B) Compression
C) Pipe thread
D) Rivet
rivot
100
What is the primary function of a clutch in a manual transmission?
To engage and disengage engine power from the transmission
200
Which type of fire extinguisher is best suited for an oil or fuel fire in a diesel shop?
Class B
200
Diesel engines use spark plugs to ignite the fuel-air mixture.
False
200
Which component is responsible for cooling the engine oil in a diesel engine?
oil cooler
200
Which bolt grade is the strongest for automotive and diesel applications?
grade 8
200
Which of the following is a symptom of a failing U-joint?
Clunking noise when shifting gears
300
Which personal protective equipment (PPE) is most important when grinding metal in a diesel shop?
a face shield
300
A torque wrench is used to measure fluid pressure in a hydraulic system.
False (A torque wrench is used to apply a specific amount of force to a fastener.)
300
In a diesel engine, the purpose of the fuel injector is to:
Deliver atomized fuel into the combustion chamber
300
name the following tool
torque wrench
300
A driver complains that their automatic transmission hesitates when shifting gears. What could be a possible cause?
Low transmission fluid level
400
What is the best way to dispose of used motor oil in an environmentally responsible manner?
Recycle it at an approved collection site
400
The fuel injector is responsible for delivering atomized fuel directly into the combustion chamber of a diesel engine.
True
400
What does TDC stand for in diesel engine operation?
Top Dead Center
400
Which of the following is a sign of a leaking hydraulic fitting?
A) Increase in fuel economy
B) Fluid residue around the connection points
C) Engine misfire
D) White smoke from the exhaust
B
400
What component in an automatic transmission transfers engine power to the transmission without using a clutch?
torque converter
500
What is the safest way to lift a heavy component in a diesel shop?
Lift with your legs and keep your back straight
500
When measuring crankshaft journal wear, a technician would use a differential gauge.
False
500
In a four-stroke diesel engine, how many power strokes occur in one full cycle per cylinder?
one
500
name the following
brake lathe
500
What can cause excessive backlash in a differential?
Worn ring and pinion gears