Automotive Technology A Systems Approach 5th Edition by Jack Erjavec - Test Bank

Automotive Technology A Systems Approach 5th Edition by Jack Erjavec – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Chapter 5—Diagnostic Equipment and Special Tools

 

TRUE/FALSE

 

1. Any scan tool designed for OBD-II will work on all OBD-II systems.

 

ANS:  T                    PTS:   1

 

2. The diagnostic connector for OBD-II vehicles is located in the same place for all vehicles.

 

ANS:  T                    PTS:   1

 

3. A voltmeter cannot be used to check for proper circuit grounding.

 

ANS:  F                    PTS:   1

 

4. Use a conventional 12-volt test light to diagnose components and wires in a computer system.

 

ANS:  F                    PTS:   1

 

5. DVOMs are available with analog and digital displays.

 

ANS:  F                    PTS:   1

 

6. A cylinder leakage tester measures the percentage of compression lost to leakage in the cylinder.

 

ANS:  T                    PTS:   1

 

7. Low oil pressure can be caused by excessive bearing clearances.

 

ANS:  T                    PTS:   1

 

8. When classifying cylinder hone stones, the higher the number, the coarser the grit.

 

ANS:  F                    PTS:   1

 

9. All FWD engines are removed from the top.

 

ANS:  F                    PTS:   1

 

10. Front bearing hub tools are usually generic and fit several vehicles.

 

ANS:  F                    PTS:   1

 

11. When cylinders are bored oversize with a boring bar, no additional cylinder wall service is required.

 

ANS:  F                    PTS:   1

 

12. Some valve spring compressors allow the valve springs to be compressed and removed while the cylinder head is still attached to the engine block.

 

ANS:  T                    PTS:   1

 

13. A battery hydrometer is used to measure the specific gravity of the electrolyte.

 

ANS:  T                    PTS:   1

 

14. A power steering pressure tester may be used to test the pressure on a hydraulic power brake booster.

 

ANS:  T                    PTS:   1

 

15. A conventional ammeter requires that the ammeter be connected in parallel with the circuit to be tested.

 

ANS:  F                    PTS:   1

 

MULTIPLE CHOICE

 

1. Manifold vacuum is measured in ______.

a.	inches of mercury [in. Hg]
b.	kilopascals [kPa]
c.	both “inches of mercury [in. Hg]” and “kilopascals [kPa]”
d.	neither “inches of mercury [in. Hg]” nor “kilopascals [kPa]”

 

 

ANS:  C

both “inches of mercury [in. Hg]” and “kilopascals [kPa]”

 

PTS:   1

 

2. Which of the following statements regarding the usage of a fuel pressure gauge is true?

a.	Typical fuel pressure for a fuel injection system is 100 to 150 psi.
b.	A drop in fuel pressure results in a rich air/fuel mixture.
c.	Both “Typical fuel pressure for a fuel injection system is 100 to 150 psi” and “A drop in fuel pressure results in a rich air/fuel mixture”
d.	Neither “Typical fuel pressure for a fuel injection system is 100 to 150 psi” nor “A drop in fuel pressure results in a rich air/fuel mixture”

 

 

ANS:  D

neither “Typical fuel pressure for a fuel injection system is 100 to 150 psi” nor “A drop in fuel pressure results in a rich air/fuel mixture”

 

PTS:   1

 

3. While discussing engine analyzers, Technician A says an engine analyzer is used to test the battery, starting system, and charging system. Technician B says an engine analyzer is used to test the operation of the primary and secondary ignition systems. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

4. Technician A says a push-in compression gauge must be held tightly in the spark plug hole in order to get an accurate reading. Technician B says the vent valve must be opened to release the pressure in the gauge after each cylinder is tested. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

5. When conducting a cylinder leakage test, Technician A says the piston must be at the top of the cylinder [TDC] when the test is done. Technician B says a reading of 0 percent leakage indicates the piston rings are worn or broken. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  A

A only

 

PTS:   1

 

6. Technician A says a sulfated and plugged fuel injector is caused by electrical problems. Technician B says a sulfated and plugged fuel injector can be cleaned. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  B

B only

 

PTS:   1

 

7. Technician A says the injector balance tester leads must be connected to the battery with the correct polarity. Technician B says the injector balance tester contains a timing circuit. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

8. Ridge reamers are being discussed. Technician A says the reamer removes the unworn metal that lies above the ring travel. Technician B says to remove the ridge after removing the piston. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  A

A only

 

PTS:   1

 

9. All the following are types of valve spring compressors EXCEPT:

a.	pry-bar type	c.	plunger type
b.	C-clamp type	d.	D-clamp type

 

 

ANS:  D

D-clamp type

 

PTS:   1

 

10. A torque angle gauge is used to measure ______.

a.	the amount of additional twist applied to a bolt during the torquing procedure
b.	the angle of the driveshaft relative to horizontal
c.	the open and closed pressure of the valve springs
d.	the preload applied to a torsion bar

 

 

ANS:  A

the amount of additional twist applied to a bolt during the torquing procedure

 

PTS:   1

 

11. A hydrometer can be used to check ______.

a.	battery electrolyte
b.	coolant
c.	both “battery electrolyte” and “coolant”
d.	neither “battery electrolyte” nor “coolant”

 

 

ANS:  C

both “battery electrolyte” and “coolant”

 

PTS:   1

 

12. A “noid” light is used to check ______.

a.	spark plugs	c.	fuel pumps
b.	fuel injector cicuit	d.	ignitions

 

 

ANS:  B

fuel injector cicuit

 

PTS:   1

 

13. Manifold vacuum is formed on the piston’s ______ stroke.

a.	intake	c.	power
b.	compression	d.	exhaust

 

 

ANS:  A

intake

 

PTS:   1

 

14. Vacuum leak testing is being discussed. Technician A uses a vacuum pump to check each component. Technician B says to use an ultrasonic tester. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

15. A pyrometer can be used to measure all the following EXCEPT:

a.	catalytic converter temperature	c.	exhaust temperature
b.	exhaust leaks	d.	coolant temperature

 

 

ANS:  B

exhaust leaks

 

PTS:   1

 

16. Technician A says a drum micrometer is used to measure the inside diameter of a brake drum. Technician B says it only measures metric drums. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  A

A only

 

PTS:   1

 

17. An inclinometer is used to measure ______.

a.	universal joint size	c.	tire size
b.	drive shaft angles	d.	none of these answers is correct

 

 

ANS:  B

drive shaft angles

 

PTS:   1

 

18. Most exhaust gas analyzers can measure ______.

a.	HC	c.	NOX  (oxides of nitrogen)
b.	CO	d.	all answers are correct

 

 

ANS:  D

all answers are correct

 

PTS:   1

 

19. Control arm bushings are typically removed with ______.

a.	a pickle fork	c.	both “a pickle fork” and “a C-clamp”
b.	a C-clamp	d.	neither “a pickle fork” nor “a C-clamp”

 

 

ANS:  B

a C-clamp

 

PTS:   1

 

20. A timing light checks the ignition timing in relation to the ____ position.

a.	crankshaft	c.	intake valve
b.	camshaft	d.	exhaust valve

 

 

ANS:  A

crankshaft

 

PTS:   1

 

21. Which of the following answers is NOT a type of ring compressor?

a.	wrinkle band	c.	band and pliers
b.	adjustable band with ratchet	d.	C-clamp type

 

 

ANS:  D

C-clamp type

 

PTS:   1

 

22. Lab scopes are being discussed. Technician A says the lab scope displays the resistance of a sensor as it changes over time. Technician B says some lab scopes can display two waveforms at the same time. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  B

B only

 

PTS:   1

 

23. A logic probe is used to detect ______.

a.	digital or pulsed [on-off] signals	c.	shorts to ground
b.	continuity	d.	all answers are correct

 

 

ANS:  A

digital or pulsed [on-off] signals

 

PTS:   1

 

24. A pyrometer is used to measure ______.

a.	pressure	c.	frequency
b.	temperature	d.	voltage

 

 

ANS:  B

temperature

 

PTS:   1

 

25. Technician A uses a pipe wrench to adjust a tie-rod sleeve. Technician B uses a tie-rod sleeve adjusting tool. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  B

B only

 

PTS:   1

 

26. Brake-cleaning machines are being discussed. Technician A uses a negative pressure [vacuum] enclosure with a HEPA filter. Technician B uses a low-pressure wet cleaning system using water mixed with an organic solvent. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

27. A refrigerant recycling/recharging station performs all the following functions EXCEPT:

a.	removes refrigerant from the vehicle
b.	identifies the type of refrigerant in the system
c.	evacuates [vacuums] the A/C system
d.	recharges the A/C system

 

 

ANS:  B

identifies the type of refrigerant in the system

 

PTS:   1

 

28. Two technicians are discussing Volt/Amp testers [VAT]. Technician A says the VAT contains a carbon pile that is a variable resistor. Technician B says the VAT is used to check batteries, starting systems, and charging systems. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

29. A(n) _____ammeter determines the amount of amperage passing through the circuit based on the strength of the magnetic field surrounding the wire.

a.	inductive	c.	magneto-resistive
b.	Cat III	d.	conventional

 

 

ANS:  A

inductive

 

PTS:   1

 

30. Most digital multimeters [DMM] can measure all the following EXCEPT:

a.	diode continuity	c.	ignition timing
b.	frequency	d.	duty cycle

 

 

ANS:  C

ignition timing

 

PTS:   1

 

31. Technician A uses leather gloves when working on high-voltage components in a hybrid vehicle. Technician B uses a CAT-III voltmeter and test leads when testing electrical components on a hybrid. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  B

B only

 

PTS:   1

 

32. The amount of antifreeze in the coolant is measured with a _____.

a.	hydrometer
b.	refractometer
c.	both “hydrometer” and “refractometer”
d.	neither “hydrometer” nor “refractometer”

 

 

ANS:  C

both “hydrometer” and “refractometer”

 

PTS:   1

 

33. What tool is NOT used for fabricating new brake lines.

a.	SAE flaring tool	c.	tubing cutter/reamer
b.	ISO flaring tool	d.	tubing hone

 

 

ANS:  D

tubing hone

 

PTS:   1

 

34. When servicing air-conditioning hoses, a(n) _______ coupling tool set is required to disconnect the hose ends.

a.	flare nut	c.	O-ring
b.	snap ring	d.	spring lock

 

 

ANS:  D

spring lock

 

PTS:   1

 

35. Technician A tests valve springs for squareness and freestanding height. Technician B tests valve springs for open and closed pressure. Who is correct?

a.	A only	c.	both A and B
b.	B only	d.	neither A nor B

 

 

ANS:  C

both A and B

 

PTS:   1

 

COMPLETION

 

1. Tire tread depth should be checked in at least ____________________ places around the tire.

 

ANS:

three or four

3 or 4

 

PTS:   1

 

2. A(n) ____________________ is used to remove a steering wheel from its shaft.

 

ANS:  wheel puller

 

PTS:   1

 

3. Most wheel balancers require the wheel to be ____________________ the car.

 

ANS:  off

 

PTS:   1

 

4. A self-powered test light is called a(n) ____________________ tester.

 

ANS:  continuity

 

PTS:   1

 

5. Cylinder deglazing is done using a cylinder ____________________.

 

ANS:  hone

 

PTS:   1

 

6. ____________________ gloves must be used when working on or around high-voltage circuits on hybrid vehicles.

 

ANS:

Lineman’s

Class 0

 

PTS:   1

 

7. Test strips are used to measure the pH [acidity] of the ____________________.

 

ANS:  coolant

 

PTS:   1

 

8. A(n) ____________________ measures the resistance to current flow in a circuit.

 

ANS:  ohmmeter

 

PTS:   1

 

9. The pattern displayed on the screen of a lab scope is called a ____________________.

 

ANS:

waveform

trace

 

PTS:   1

 

10. A(n) ____________________ is a microprocessor designed to communicate with the vehicle’s computer.

 

ANS:  scan tool

 

PTS:   1

 

ESSAY

 

1. When is a clutch alignment tool used?

 

ANS:

During assembly of the clutch

 

PTS:   1

 

2. Name the two basic types of compression gauges and how they are used.

 

ANS:

Push-in gauge and screw-in gauge are positioned in a spark plug hole and provide a compression reading when the engine is cranked. The push-in gauge must be held firmly in place while the engine is cranked, otherwise the readings will be inaccurate.

A screw-in gauge has adapters that are threaded into the spark plug holes. It is more accurate than the push-in type.

 

PTS:   1

 

3. Describe how to test manifold vacuum.

 

ANS:

Connect the flexible hose of the vacuum gauge to a source of manifold vacuum and read the gauge while the engine is running. The gauge should read a steady vacuum of 15 to 20 in. Hg.

 

PTS:   1

 

4. What colors are used to identify R-134a service hoses?

 

ANS:

Low-pressure is blue with a black stripe. High-pressure is red with a black stripe. Service hose [center] is yellow with a black stripe.

 

PTS:   1

 

5. What is a brake spoon used for?

 

ANS:

Initially adjusting a brake after installation

 

PTS:   1

 

6. List four capabilities of  a scan tool.

 

ANS:

read DTCs

monitor system operational data [sensor data and output data]

perform system diagnostics tests

reprogram the vehicle’s electronic control module

display appropriate service information, including electrical diagrams

display TSBs

troubleshooting instructions

easy tool updating through a PC

read freeze frame data

clear DTCs

 

PTS:   1

 

7. List four gases that can be measured with an exhaust analyzer.

 

ANS:

hydrocarbons [HC]

carbon monoxide [CO]

carbon dioxide [CO₂]

oxygen [O₂]

oxides of nitrogen [NO_X]

 

PTS:   1

 

8. List the special tools needed to work on hybrid vehicles.

 

ANS:

lineman’s gloves with leather outer gloves

CAT-III rated multimeter with CAT-III test leads

insulation resistance tester

 

PTS:   1

 

9. What is the difference between a disc brake micrometer and a conventional micrometer?

 

ANS:

A disc brake micrometer has pointed anvils that allow the tip to fit into the grooves worn on the rotor. Also the range of the disc brake micrometer is from 0.300 in. to 1.300 in.

 

PTS:   1

 

10. What is the purpose of piston ring expanders?

 

ANS:

To prevent damage to the piston ring during removal and installation

 

PTS:   1