Valve springs are used to open an engine’s intake and exhaust valves.
False
Pistons typically use ____ compression rings and one oil ring.
2
4
1–3
3
A wrench designed to be hit by a hammer is called a(n) ______________________________ wrench.
slug
The connecting rod small end is attached to the ______________________________ by a wrist pin.
piston
When working with sockets, Technician A states that a socket’s “point” is the size of the square opening for the handle. Technician B states the point of a socket is the box configuration for the bolt head. Who is right?
A only.
Both A and B.
Neither A nor B.
B only.
A(n) ______________________________ is often built into the cap of the power steering pump.
dipstick
In a four-stroke cycle engine, the crankshaft must make four complete rotations to complete the cycle.
False
Vehicle wheelbase and vehicle length are different terms for the same measurement.
False
When using a hacksaw, you should apply light pressure ____.
on both forward and backward strokes
None of the above.
on the backward stroke
on the forward stroke
An automotive ____ is a group of related parts that perform a specific job.
process
system
sequence
component
Piston rings are used to keep combustion pressure and oil from leaking between the piston and the cylinder wall.
True
______________________________ rings prevent combustion pressure from leaking into the engine’s crankcase.
Compression
The radiator of a vehicle is part of its ____ system.
fuel
electrical
lubrication
cooling
If you find fluid dripping from a vehicle, where is the likeliest direction to look for the actual leak?
Above and in front of the drip point.
Immediately to the left or right of the drip point.
Above and behind the drip point.
Directly above the drip point.
Which of the items listed below is not a potential explosion hazard?
Empty fuel tank.
Welding gas cylinders.
Battery
Oil pan.
In a typical gasoline-powered automobile engine, how many piston strokes make up a complete cycle?
Four
One
Three
Two
An oil pan drain plug should be turned ______________________________ for removal.
counterclockwise
Engine coolant consists of ____.
water and antifreeze
oil and antifreeze
water only
water and stop leak
A hybrid electric vehicle uses two methods of propulsion—an internal combustion engine and an electric drive train.
True
Torx screws have a square indentation in their heads.
False
The engines that are used in most automobiles are ____ engines.
piston
four-stroke cycle
All of the above.
multi-cylinder
The alternator is part of a vehicle’s ____ system.
starting
lighting
charging
ignition
The piston is mounted to the connecting rod by the ____.
piston skirt
cam lobe
wrist pin
cylinder bolt
Valves close off the intake and exhaust ______________________________ for each engine cylinder.
ports
Camshaft action is transmitted to the valves by the ____.
lifters
valve springs
rocker arms
cam followers
A magnetic pickup will attract any kind of metal.
False
A transaxle is most commonly used with ______________________________-wheel-drive vehicles.
front
A large repair facility recycles its used motor oil. Technician A says that only about one quart of high-quality oil can be recovered from each gallon of used oil that is recycled. Technician B says the recovery rate is about two and one-ha
A only.
Both A and B.
B only.
Neither A nor B.
Which of the following contaminants is not likely to be found in transmission oil?
Friction material.
Moisture.
Dirt
Gasoline.
____ is another name used to describe the engine bottom end.
Crank end
Cylinder block
Short block
Lower deck
For efficient engine operation, the fuel system must provide the correct mixture of ______________________________ and fuel.
air
A transmission and differential are combined in the ______________________________ used by front-wheel-drive vehicles.
transaxle
The engine main ______________________________ are removable inserts that fit between the crankshaft main journals and the block main bore.
bearings
The following tool is a(n) ____ wrench.
oil filter
fuel filter
timing adjustment
battery terminal
When checking hose conditions, which would indicate the need for replacement?
Softening.
Cracks or abrasions.
All of the above.
Hardening
Which of the following is not a socket wrench drive size?
5/8
3/8
1/4
1/2
Asphyxiation is caused by breathing toxic substances in the air.
True
You should always have your instructor demonstrate potentially dangerous equipment before you try to use it.
True
An engine needs to be moved. Technician A says two people can slide the engine out of the way. Technician B says that an engine crane should be used to move the engine. Who is right?
B only.
A only.
Both A and B.
Neither A nor B.
Force is transmitted from the engine to the vehicle's wheels by the drive train.
True