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WMT Maintenance Tech Test > Test Equipment > Flashcards

Test Equipment Flashcards

1
Q

When measuring voltage across a circuit with a multimeter, where should the probes be placed?

A) In series with the circuit
B) Across the load in parallel
C) Across the power supply
D) Directly on the resistor

A

B) Across the load in parallel

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2
Q

Which setting would you use on a multimeter to check if a fuse is good?

A) Voltage (AC)
B) Voltage (DC)
C) Ohms (resistance)
D) Current

A

C) Ohms (resistance)

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3
Q

What is the primary purpose of an oscilloscope in maintenance work?

A) To measure voltage in AC and DC circuits
B) To visualize electrical waveforms
C) To check for continuity in a circuit
D) To measure resistance

A

B) To visualize electrical waveforms

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4
Q

When using an oscilloscope, what would be the likely indication of a malfunctioning capacitor in a waveform?

A) An increase in amplitude
B) A phase shift
C) A flat-line (no waveform)
D) A square waveform

A

C) A flat-line (no waveform)

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5
Q

What is a megohmmeter (megger) used for in electrical testing?

A) Measuring small resistances
B) Checking insulation resistance
C) Measuring current
D) Checking voltage drop

A

B) Checking insulation resistance

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6
Q

To test insulation resistance with a megohmmeter, what is the typical procedure?

A) Connect the device across a live circuit
B) Connect the device between the conductor and ground
C) Measure the resistance between two energized points
D) Measure the capacitance across a circuit

A

B) Connect the device between the conductor and ground

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7
Q

What is the primary function of a clamp meter?

A) To measure voltage
B) To measure resistance
C) To measure current without breaking the circuit
D) To measure capacitance

A

C) To measure current without breaking the circuit

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8
Q

When using a clamp meter to measure current, what must you do to ensure an accurate reading?

A) Clamp around both the live and neutral wires
B) Clamp around only the live wire
C) Clamp around the earth wire
D) Disconnect the power before clamping

A

B) Clamp around only the live wire

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9
Q

What does a continuity tester measure in a circuit?

A) Voltage
B) Current
C) Resistance
D) Whether a circuit is open or closed

A

D) Whether a circuit is open or closed

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10
Q

What would be the expected reading or result on a continuity tester if the circuit is open?

A) Low resistance reading
B) High resistance reading
C) A beep or light indicating continuity
D) No reading, no beep, or no light

A

D) No reading, no beep, or no light

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11
Q

A pressure gauge is used to measure:

A) Electrical resistance
B) Hydraulic pressure
C) Fluid flow rate
D) Temperature

A

B) Hydraulic pressure

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12
Q

When using a flow meter, what is it used to measure?

A) Voltage in a hydraulic system
B) The rate at which fluid moves through a system
C) The pressure of gas in a pipe
D) The temperature of fluids

A

B) The rate at which fluid moves through a system

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13
Q

What is the purpose of using a thermocouple in industrial maintenance?

A) To measure electrical resistance
B) To measure temperature
C) To check for current leakage
D) To check for continuity in wires

A

B) To measure temperature

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14
Q

What is the advantage of using an infrared thermometer over a traditional contact thermometer?

A) It can measure voltage
B) It provides a continuous reading
C) It allows you to measure temperature from a distance
D) It measures the resistance in a circuit

A

C) It allows you to measure temperature from a distance

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15
Q

What is the main difference between a digital and an analog multimeter?
A) Digital meters display readings with a needle, while analog meters display readings as numbers.
B) Analog meters are more accurate than digital meters.
C) Digital meters display readings as numbers, while analog meters use a needle and dial to display readings.
D) Analog meters require a battery to operate, while digital meters do not.

A

C) Digital meters display readings as numbers, while analog meters use a needle and dial to display readings.

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16
Q

What is a vernier caliper used for?

A) Measuring voltage in an electrical circuit
B) Measuring the diameter or thickness of an object with precision
C) Checking fluid pressure
D) Testing for current continuity

A

B) Measuring the diameter or thickness of an object with precision

17
Q

When using an insulation tester, the results indicate high resistance. What does this imply about the insulation quality?

A) The insulation is in poor condition and should be replaced
B) The insulation is in good condition
C) The circuit is experiencing a short
D) The equipment is overheating

A

B) The insulation is in good condition

17
Q

Which of the following is NOT a typical use for a digital caliper?

A) Measuring the inside diameter of a hole
B) Measuring the length of a shaft
C) Measuring the voltage of an electrical circuit
D) Measuring the thickness of a sheet of metal

A

C) Measuring the voltage of an electrical circuit

18
Q

How would you use a multimeter to verify that a power supply is working correctly?
A) Check for continuity across the terminals.
B) Measure the voltage at the output terminals and compare it to the rated voltage.
C) Measure the resistance between the terminals.
D) Measure the current with the power supply turned off.

A

B) Measure the voltage at the output terminals and compare it to the rated voltage.

19
Q

What is the purpose of a torque wrench in maintenance work?

A) To measure the electrical resistance of a circuit
B) To measure the amount of torque (rotational force) applied to a bolt or nut
C) To check for continuity in an electrical system
D) To measure fluid pressure in a hydraulic system

A

B) To measure the amount of torque (rotational force) applied to a bolt or nut

20
Q

What is the consequence of under-torqueing a bolt in mechanical systems?

A) It will cause the bolt to break.
B) It will prevent the bolt from securing the component properly, leading to potential failure.
C) It will cause excessive wear on the component.
D) It will increase electrical resistance.

A

B) It will prevent the bolt from securing the component properly, leading to potential failure.

21
Q

Which of the following is a typical use of a flow meter in an industrial setting?
A) Measuring the amount of electrical current flowing through a wire
B) Measuring the rate at which a fluid moves through a pipe
C) Checking the voltage across a circuit
D) Measuring the pressure in a hydraulic system

A

B) Measuring the rate at which a fluid moves through a pipe

22
Q

What is a thermal imaging camera typically used for in maintenance?
A) To measure the voltage in a circuit
B) To detect hot spots or heat anomalies in equipment
C) To check for electrical continuity
D) To measure the rotational speed of machinery

A

B) To detect hot spots or heat anomalies in equipment

23
Q

When using a hydraulic pressure gauge, what are you typically measuring?
A) The current flowing through a hydraulic pump
B) The voltage applied to a hydraulic motor
C) The pressure of the hydraulic fluid in a system
D) The temperature of the hydraulic fluid

A

C) The pressure of the hydraulic fluid in a system

24
Q

What is the purpose of using a sound level meter in a factory environment?
A) To measure the voltage in electrical circuits
B) To measure the sound levels and ensure compliance with noise regulations
C) To check the resistance in loudspeaker systems
D) To test the continuity of communication systems

A

B) To measure the sound levels and ensure compliance with noise regulations

25
Q

What is the typical use of a digital thermometer in maintenance work?

A) To measure the temperature of electrical circuits
B) To measure the current in a circuit
C) To measure the temperature of equipment or fluid in a system
D) To check for continuity in electrical systems

A

C) To measure the temperature of equipment or fluid in a system

26
Q

When using a digital thermometer, what could a high temperature reading in a mechanical system indicate?

A) Normal operation
B) A potential issue with overheating or equipment failure
C) Low fluid levels
D) Excessive resistance in the electrical system

A

B) A potential issue with overheating or equipment failure

27
Q

What is the key advantage of using a clamp meter to measure current in a system?
A) You can measure current without interrupting the circuit.
B) It provides more accurate voltage readings.
C) It measures resistance directly.
D) It requires no calibration before use.

A

A) You can measure current without interrupting the circuit.

WMT Maintenance Tech Test (8 decks)

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