Deck 6: Diagnostic Equipment and Special Tools

Question 1

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

Answer 1

False

Question 2

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

Answer 2

True

Question 3

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]"

Answer 3

C

Question 4

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

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 5

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
B) B only
C) both A and B
D) neither A nor B

Question 6

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

Question 7

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

Question 8

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

Question 9

DVOMs are available with analog and digital displays.

Question 10

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

Question 11

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
B) B only
C) both A and B
D) neither A nor B

Question 12

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

Question 13

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

Question 14

Low oil pressure can be caused by excessive bearing clearances.

Question 15

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

Question 16

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

Question 17

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

Question 18

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

Question 19

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"

Question 20

All FWD engines are removed from the top.

Question 21

An inclinometer is used to measure ______.

A) universal joint size
B) drive shaft angles
C) tire size
D) none of these answers is correct

Question 22

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

A) wrinkle band
B) adjustable band with ratchet
C) band and pliers
D) C-clamp type

Question 23

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
B) B only
C) both A and B
D) neither A nor B

Question 24

All the following are types of valve spring compressors EXCEPT:

A) pry-bar type
B) C-clamp type
C) plunger type
D) D-clamp type

Question 25

A "noid" light is used to check ______.

A) spark plugs
B) fuel injector circuit
C) fuel pumps
D) ignitions

Question 26

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
B) B only
C) both A and B
D) neither A nor B

Question 27

Manifold vacuum is formed on the piston's ______ stroke.

A) intake
B) compression
C) power
D) exhaust

Question 28

A logic probe is used to detect ______.

A) digital or pulsed [on-off] signals
B) continuity
C) shorts to ground
D) all answers are correct

Question 29

A hydrometer can be used to check ______.

A) battery electrolyte
B) coolant
C) both "battery electrolyte" and "coolant"
D) neither "battery electrolyte" nor "coolant"

Question 30

Control arm bushings are typically removed with ______.

A) a pickle fork
B) a C-clamp
C) both "a pickle fork" and "a C-clamp"
D) neither "a pickle fork" nor "a C-clamp"

Question 31

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

Question 32

Most exhaust gas analyzers can measure ______.

A) HC
B) CO
C) NOX (oxides of nitrogen)
D) all answers are correct

Question 33

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
B) B only
C) both A and B
D) neither A nor B

Question 34

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

A) catalytic converter temperature
B) exhaust leaks
C) exhaust temperature
D) coolant temperature

Question 35

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

A) crankshaft
B) camshaft
C) intake valve
D) exhaust valve

Question 36

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
B) B only
C) both A and B
D) neither A nor B

Question 37

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
B) B only
C) both A and B
D) neither A nor B

Question 38

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
B) B only
C) both A and B
D) neither A nor B

Question 39

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
B) B only
C) both A and B
D) neither A nor B

Question 40

A pyrometer is used to measure ______.

A) pressure
B) temperature
C) frequency
D) voltage

Question 41

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

Question 42

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
B) B only
C) both A and B
D) neither A nor B

Question 43

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

Question 44

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

Question 45

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
B) Cat III
C) magneto-resistive
D) conventional

Question 46

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

A) diode continuity
B) frequency
C) ignition timing
D) duty cycle

Question 47

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

Question 48

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
B) B only
C) both A and B
D) neither A nor B

Question 49

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

Question 50

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

Question 51

Cylinder deglazing is done using a cylinder ____________________.

Question 52

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"

Question 53

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
B) B only
C) both A and B
D) neither A nor B

Question 54

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

Question 55

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

Question 56

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
B) B only
C) both A and B
D) neither A nor B

Question 57

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

A) flare nut
B) snap ring
C) O-ring
D) spring lock

Question 58

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

Question 59

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

Question 60

What tool is NOT used for fabricating new brake lines.

A) SAE flaring tool
B) ISO flaring tool
C) tubing cutter/reamer
D) tubing hone

Question 61

List the special tools needed to work on hybrid vehicles.

Question 62

When is a clutch alignment tool used?

Question 63

List four capabilities of a scan tool.

Question 64

Describe how to test manifold vacuum.

Question 65

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

Question 66

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

Question 67

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

Question 68

What is a brake spoon used for?

Question 69

What is the purpose of piston ring expanders?

Question 70

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