Easy Quiz 1, Trades & Technology - Automotive

The grade of a fastener, such as a bolt, is a measure of its _________

Tall safety stands would be used to _______

Discuss the sequence that should be followed when installing all the panels in the front of the vehicle and discuss why this should be done.

4

What color is the ring between the tachometer and speedometer of a Honda CR-Z when the driver is getting the best possible gas mileage?

5

Insulators lose electrons in their outer shell easier than conductors

6

Explain what advantages aluminum has for use in manufacturing automobiles.

Some technicians believe that the main advantage to using aluminum is its resistance to corrosion. Others believe that its lightness and strength are its main
advantage, and this too is a valid viewpoint. Though aluminum is 1.5 to 2 times thicker than steel of comparable strength, it is considerably lighter, which is also a big advantage. Another advantage that design engineers find attractive in aluminum is its predictability in a collision. Unlike steel, aluminum collapses in a predictable manner; thus, aluminum parts can be designed to contain collision forces. By knowing how a material can and will collapse under differing conditions, engineers can design safety collapse zones into frame rails to protect passengers in collision emergencies. With a substance such as aluminum, which is corrosion-resistant, strong, light, and predictable when it collapses, it is no wonder that design engineers are using more in automotive production. Another advantage to using aluminum is its recyclability. Aluminum costs less to recycle than it does to produce in the first place, which cannot be said of other substances such as steel and plastic. We now recycle nearly 90% of the aluminum that is used today.

7

An air/fuel ratio sensor is used instead of a conventional oxygen sensor because:

8

Technician A says that disc brake pads should be replaced when worn to minimal allowable thickness. Technician B says the pads should be removed and inspected whenever there is a brake performance complaint. Which technician is correct?

9

Technician Asays a voltmeter measures the electrical difference between two points of the circuit. Technician B says a voltmeter that is connected in parallel to the load device will indicate the voltage drop across the device. Who is correct?

10

OBD II provides a universal OBD 16-pin DLC for all manufacturers' vehicles since 1990.

11

Radio frequency interference is a form of electromagnetic interference caused by low current flow.

12

<img width="317" height="114" align="bottom" src="https://sciemce.com/files/4/ppg__examview__image25__00001_res__nar002-1.jpg" border="0"> Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 24.

13

An acceptable charging circuit voltage on a 12 volt system is ________

14

An oil filter should be hot drained for how long before disposing of the filter?

15

Two technicians are discussing refrigerant handling. Technician A says that The Clean Air Act of 1990 authorized the EPA to control refrigerant. Technician B says that anyone can purchase R-12 refrigerant. Who is correct?

16

Technician A says that disc brakes are self adjusting and the brake pedal height should not become lower as the disc brake pads wear. Technician B says that as the disc brake pads wear, the level of brake fluid in the master cylinder reservoir drops. Which technician is correct?

17

A collapsible shaft is designed to:

18

Most modules on the bus network are capable of setting U-codes if they detect ____________________ conditions.

19

Technician A says that regular replacement shock absorbers will raise the rear of a vehicle that is sagging down. Technician B says that replacement springs will be required to restore the proper ride height. Which technician is correct?

20

Describe the function of “in-flight loss of solvent” when transporting a reduced finish from the paint gun to the target object.

21

Two types of superchargers include ________

22

MAF sensors measure _________

23

High pressure hoses have to be used on the high pressure side of the power steering system because pressures can reach as high as ________

24

Which acronym applies to the portion of the binary message that allows the receiving module to detect message errors through a mathematical calculation?

25

The engine will not start if ________

26

A ________ is a variable valve that changes the size of the valve opening in response to the cooling load of the evaporator.

27

_____ systems automatically react to normal or slippery road conditions and are not designed for off-road use; rather, they are designed to increase vehicle performance in poor traction situations.

28

What is the local interconnect network (LIN) bus?

29

Technician A says that bearings should be thoroughly cleaned with solvent before repacking with grease. Technician B says that it is important to use manufacturer approved bearing grease to prevent premature bearing wear. Which technician is correct?

30

When capturing a current waveform from a motor, what is indicated if the waveform goes to "zero" twice per rotation?

31

Technician A says that a vehicle cannot be repaired with a manually written damage report. Technician B says that a computerized damage report can be created only by the original equipment manufacturer. Who is correct?

32

New vehicle bumpers are designed to withstand major impact without damage.

33

The driver rotates the steering wheel one-half of one revolution on a vehicle equipped with a steering gear with a 20:1 gear ratio. How many degrees will the front tires be rotated?

34

There are a few specialized schools in the United States that teach ____________________.

35

Which fuel cell is best suited to automotive applications?

36

What should wheel bearing seals be checked for?

37

Power steering pump pressure is highest when driving a vehicle straight ahead.

38

Technician A says that a crowfoot socket is used with a ratchet. Technician B says that a crowfoot socket is used with an extension. Which technician is correct?

39

40

How does the PCM determine catalyst efficiency?

41

Which of these statements about using turn signals is true?

42

Two technicians are discussing MAP sensor testing. Technician A says that the MAP sensor should be replaced if anything comes out of the sensor when the vacuum hose is removed from the sensor. Technician B says that the injector pulse width should increase when vacuum to the MAP sensor is increased. Which technician is correct?

43

How would you remove a severe case of scale buildup in an engine you are rebuilding?

44

To reduce your carbon footprint, what action(s) can be performed?

45

What is the period of time called when current flows through the primary windings of a coil to increase the magnetic field generated?

46

Which of these components lets the PCM know how fast you want to accelerate?

47

When the driver of a Civic Hybrid is maintaining a very low cruising speed, the cylinders in the engine are ____________________ and the motor powers the car by itself.

48

A relay is a switch which uses low current to control high current.

49

Two technicians are discussing testing MAP sensors. Technician A says that the MAP sensor voltage on a General Motors vehicle at idle should be about 1.0 volt. Technician B says that the MAP sensor frequency on a Ford vehicle at idle should be about 105—108 Hz. Which technician is correct?

50

Some computer wheel aligners provide a ride height screen indicating where the ride height should be measured.

51

What is the function of steering axis inclination (SAI)?

52

A(n) ____________________ diode is one whose crystals are more heavily doped during manufacturing.

53

Most lightweight vehicles use gasoline that is rated at about 190,000 British Thermal Units per gallon.

54

How many turns of an adjusting nut are there in 720° of rotation?

55

At any successful organization, the employees ________.

56

The use of automatic passive restraint systems is Federally mandated on all passenger vehicles sold in the United States after 1990.

57

In a series circuit, total circuit resistance is equal to the ________ of the resistance of all loads in the circuit

58

A vehicle fails an emission test due to excessive carbon monoxide indicating a rich air fuel mixture. Technician A says that a saturated charcoal canister could be the cause. Technician B says that a stuck-closed EVAP purge solenoid could be the cause. Which technician is correct?

59

Which test is best in isolating clutch system problems?

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Easy Quiz 1, Trades & Technology - Automotive

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