Deck 6: Diagnostic Equipment and Special Tools

Question 1

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

Answer 1

True

Question 2

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

Answer 2

True

Question 3

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

Answer 3

False

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

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

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

Question 7

A pyrometer is used for all of the following EXCEPT:

A)to check blockages across the radiator
B)to measure the temperature of the air conditioning condenser
C)to find dragging brakes
D)to locate leaks in power steering fluid

Question 8

Low oil pressure can be caused by excessive bearing clearances.

Question 9

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

Question 10

Manifold vacuum is measured in ______.

A)inches of mercury (in. Hg)
B)kilopascals (kPa)
C)both A and B
D)neither A nor B

Question 11

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

Question 12

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

Question 13

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 14

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 15

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

Question 16

All FWD engines are removed from the top.

Question 17

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

Question 18

DVOMs are available with analog and digital displays.

Question 19

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

Question 20

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 A and B
D)neither A nor B

Question 21

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 22

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 23

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 24

A pyrometer is used to measure ______.

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

Question 25

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 26

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

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

Question 27

Vacuum leak testing is being discussed. Technician A  says to use 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 28

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 29

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 30

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 31

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 32

Most exhaust gas analyzers can measure ______.

A)HC
B)CO
C)NO _X (oxides of nitrogen)
D)All the 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

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

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

Question 35

Control arm bushings are typically removed with ______.

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

Question 36

A noid light is used to check the ______.

A)spark plugs
B)fuel injector circuit
C)fuel pump
D)ignition

Question 37

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 38

A logic probe is used to detect ______.

A)digital or pulsed (on-off)signals
B)continuity
C)shorts to ground
D)All the answers are correct.

Question 39

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

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

Question 40

An inclinometer is used to measure ______.

A)universal joint size
B)drive shaft angles
C)tire size
D)None of the answers is correct.

Question 41

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 42

Which 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 43

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 44

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

Question 45

Cylinder deglazing is done using a cylinder ____________________.

Question 46

When is a clutch alignment tool used?

Question 47

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

Question 48

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

Question 49

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 50

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

A)hydrometer
B)refractometer
C)both A and B
D)neither A nor B

Question 51

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

Question 52

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

Question 53

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

Question 54

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

Question 55

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

Question 56

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 57

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

Question 58

Most digital multimeters (DMM)can measure all the following EXCEPT:

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

Question 59

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 60

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

Question 61

List the special tools needed to work on hybrid vehicles.

Question 62

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

Question 63

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

Question 64

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

Question 65

List four capabilities of a scan tool.

Question 66

What is a brake spoon used for?

Question 67

Describe how to test manifold vacuum.

Question 68

What is the purpose of piston ring expanders?