Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AE&D > Engine > Flashcards

Engine Flashcards

1
Q

Alkaline cleaners will remove rust and scale.

A

‘False’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Technician A says that an air-fuel mixture that is too lean can cause burned internal engine parts. Technician B says an overly rich mixture can cause oil wash from cylinder walls. Which technician is correct?

A

Both technicians

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Technician A says to avoid lubrication on the thrust bearing surfaces. Technician B says when installing main bearing caps, tap them with a ball peen hammer to insure they seat properly. Who is right?

A

Nether technician

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Technician A says that the top compression ring groove wears more than the other ring grooves. Technician B says that full floating, piston pin lock rings should be installed with their openings facing up. Who is correct?

A

Technician A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

During a compression test, a cylinder shows lower readings than expected. Technician A squirts a tablespoon of oil into the cylinder and the compression raises. He says this indicates a problem with the rings. Technician B says this indicates a burned intake valve. Which technician is correct?

A

Technician A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

All of the below are causes of thrust bearing failure, EXCEPT _____.

A

a correctly installed rope seal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The tenth digit of the VIN code will identify the engine size.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A flexplate is used with a manual transmission.

A

False’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

All of the following are used for chamfering a cylinder EXCEPT a _____.

A

diamond hone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Technician A says that it is alright to disconnect the air conditioning lines and drain the refrigerant in a pan. Technician B says that certification is required to operate a refrigerant recycling machine. Who is right?

A

Technician B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Technician A says that to identify a vehicle all you need to know is the make and model. Technician B says that the VIN code can be found in the owner’s manual. Who is right?

A

Neither technician

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Most of today’s cars are powered by _____-cycle engines.

A

Otto

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The first oil change on a rebuilt engine should be performed at
Answer
miles.

A

500

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Technician A says some manufacturers recommend head bolts going into a coolant passage be sealed with liquid thread sealant. Technician B says RTV stands for right torque value. Who is correct?

A

Technician A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Without protective gloves, it is possible for acid from your hands to etch engine bearings.

A

True’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Two technicians are discussing “blowby.” Technician A says that “blowby” is gases escaping past the valves. Technician B says that “blowby” is gases escaping past the rings. Which technician is correct?

A

Technician B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Undersize bearings have a thinner bearing back.

A

False’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Ring gaps on an opposed engine design should be faced down.

A

False’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Technician A says a hot spray washer is sometimes called a jet washer. Technician B says an advantage of a spray washer is that it cleans oil galleries as well as a hot soak tank. Who is right?

A

Technician A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Automobile piston pins are either pressed fit or full floating.

A

‘True’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Some main bearings have dowels that must fit into a hole in the block.

A

‘True’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Of the measuring devices listed below, which is the most accurate in measuring cylinder bore size?

A

cylinder dial bore gauge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Technician A says the rotating end of the connecting rod is the big end. Technician B says the reciprocating end of the connecting rod is the big end. Who is correct?

A

Technician A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Technician A says grounding out a plug wire to a cylinder with a cracked piston will can increase the noise. Technician B says a rod knock will become quieter as its cylinder is grounded. Who is correct?

A

Both technicians

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The camshaft controls the rate at which the engine breathes.

A

True’.

26
Q

Technician A says that most automotive gasoline engines have four strokes per cycle. Technician B says that the crankshaft makes four revolutions during the four-stroke cycle. Which technician is correct?

A

Technician A

27
Q

Technician A says that a good piston can be ruined by cleaning the grooves on a wire wheel. Technician B says an old, broken piston ring works well to clean the ring grooves. Who is right?

A

Both technicians

28
Q

Two technicians are discussing engines. Technician A says that a long block is a short block with the addition of the cylinder heads. Technician B says that the term “short block” refers to the engine’s displacement. Which technician is correct?

A

Technician A only.

29
Q

Technician A says the click-type torque wrench is best because it is the most accurate. Technician B says that an inch-pound torque wrench should be used when measuring smaller torque values. Who is correct?

A

Technician B

30
Q

Oil consumption problems are being discussed. Technician A says a lack of regular services can cause the oil control rings to plug. Technician B says worn compression rings can cause oil consumption problems. Who is correct?

A

Both technicians

31
Q

The gasoline engine is also known as a spark ignition engine.

A

True’

32
Q

How many degrees is a complete cycle on a four stroke engine?

A

720

33
Q

Technician A says powder forged rods are not cut; they are fractured (broken). Technician B says some rods have a spit hole to lubricate the cylinder walls at lower rpms. Who is right?

A

Both technicians

34
Q

Technician A says that valvetrain noise will occur at half the speed of engine rpm. Technician B says valvetrain noises coming from inside the timing cover can be caused by a bad timing chain or chain guide. Which technician is correct?

A

Both technicians

35
Q

Technician A says that during engine disassembly, all main and rod bearings should be kept in order in case they will be reused. Technician B says that there is no need to keep bearings in order if new parts are to be used. Who is right?

A

Technician A

36
Q

Most oval wear on a cylinder is away from the major thrust side.

A

False’.

37
Q

On an engine with a standard transmission, insure the flexplate is installed correctly.

A

‘False’.

38
Q

An ultrasonic thickness gauge is used to check cylinder wall thickness.

A

‘True’.

39
Q

Engine operation is being discussed. Technician A says preignition can cause engine damage. Technician B says carbon deposits on the pistons can increase the compression ratio. Who is correct?

A

Both technicians

40
Q

A heli-coil is a thread repair device.

A

‘True’.

41
Q

During engine removal with an automatic transmission, the torque converter stays with the engine.

A

‘False’.

42
Q

How fast does the crankshaft rotate in relationship to the camshaft?

A

Twice as fast

43
Q

Most of today’s automotive pistons are slipper skirt pistons.

A

‘True’.

44
Q

Piston rings are made from all these materials, EXCEPT _____.

A

aluminum wire

45
Q

Hypereutectic is the description of a popular cast aluminum alloy referring to the percentage of silicon in the aluminum in a piston.

A

True’.

46
Q

Technician A says a faulty head gasket can cause the oil to mix with coolant. Technician B says bubbles forming in the coolant during engine operation could indicate a leaking head gasket. Which technician is correct?

A

Both technicians

47
Q

Technician A says that there is a correct sequence to follow when removing head bolts. Technician B says that when a cylinder wears, a ridge forms at the bottom of the cylinder. Who is right?

A

Technician A

48
Q

Technician A says that all vehicles have vacuum diagrams under the hood and there is no need to mark the vacuum lines. Technician B says that for late model vehicles, microfiche will have all the information you need to rebuild the engine. Who is right?

A

Neither technician

49
Q

The engine has to be removed to replace a one piece rear main (crankshaft) oil seal.

A

‘True

50
Q

A feeler gauge is used to measure mechanical valve lash.

A

True’.

51
Q

While discussing an in-vehicle engine repair, Technician A says that sometimes the engine mounts need to be loosened to remove the oil pan. Technician B says that sometimes the oil pump must be unbolted in order to remove the oil pan. Who is right?

A

Both technicians

52
Q

Technician A says to label the core plugs as they are removed so they can be reinstalled. Technician B says to remove the core plugs before hot tanking the block. Who is correct?

A

Technician B

53
Q

Technician A says excessive drive belt tension can cause wear on the upper, front main bearing. Technician B says maintaining proper oil clearance and a lower viscosity oil will increase the fatigue life of a bearing. Who is right?

A

Technician A

54
Q

The engine should be cold before removing the head.

A

‘True’.

55
Q

After glaze breaking or cylinder honing, clean the block with _____.

A

hot soapy water

56
Q

Technician A says a piston usually has a direction identifying notch that faces the rear of the engine. Technician B says a piston exhibits more wear on its major thrust side. Who is right?

A

Technician B

57
Q

Two technicians are discussing the power stroke. Technician A says that on a V8 engine, a power stroke occurs every 90 degrees. Technician B says that on an inline six-cylinder engine, the power stroke occurs every 120 degrees. Which technician is correct?

A

Both technicians

58
Q

A full skirt piston used on longer stroke engines is known as a(n) ____ piston.

A

trunk

59
Q

The purpose of the harmonic balancer is to____________.

A

Absorb the twisting of the crankshaft.

60
Q

What cylinder number is the closest to the front of the engine on almost all V-type engines?

A

1

AE&D (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions