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INDUSTRIAL ELECTRICIAN 442A

FREE QUIZ

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Page 1 of 10

1. What is the biggest size of solid copper conductor?

A. 8 awg

B. 14 awg

C. 12 awg

D. 10 awg

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2. A worker has been given a job he/she feels to be unsafe, what course of action can the worker take?

A. Must do the work anyway

B. Must ask a co-worker to do the job instead

C. Worker has the right to refuse work they believe to be unsafe

D. Immediately call MOL

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3. What is the allowable ampacity of 3 600v 75C rated #4 unshielded copper conductors installed in a raceway that will be connected to equipment with a temperature rating of 90C?

A. 85A

B. 75A

C. 55A

D. 95A

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4. When troubleshooting an uninterruptable power supply check?

A. LED status indicators on the front of the UPS

B. Input voltages

C. Output voltages

D. All of the above

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5. What colour should the circuit breaker feeding a fire alarm panel be?

A. Green

B. Black

C. Red

D. Orange

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Page 2 of 10

6. A pressure transmitter has a 4-20ma output, its output is?

A. Proportional and biased

B. Linear and proportional

C. Exponential and proportional

D. Linear and disproportionate

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7. Latent heat is heat that causes a change in state.

A. True

B. False

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8. Regarding fire alarm systems, which of the following below is an example of an ancillary device?

A. Heat detector

B. Magnetic door locks

C. Manual pull station

D. Fire water valve position switch

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9. What type of error is present in the following Pressure Tx calibration results?

zero error question

A. Hysteresis

B. Span

C. Zero

D. Hunting

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10. What is the speed of a 3 phase motor that has 6 poles operating at a frequency of 60 hz?

A. 1800 rpm

B. 1200 rpm

C. 3600 rpm

D. 36000 rpm

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Page 3 of 10

11. What is the following WHMIS symbol?

corrosive material

A. Flammable and combustible material

B. Dangerously reactive material

C. Corrosive material

D. Oxidizing material

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12. You have a 20 HP 3Φ 600V full voltage start SCIM with a service factor of 1.15 being protected by a non-time delay fuse, what should the overload be set at?

A. 27.5A

B. 22.5A

C. 30A

D. 15.9A

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13. You are installing a 7 segment display how many wires does this installation require?

A. 7, 7 input wires

B. 10, 8 input wires and 2 grounds

C. 5, 4 input wires and 1 ground

D. 8, 7 input wires and 1 ground

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14. What is the cell voltage of a fully charged lead acid battery?

A. 5v

B. 1.6v

C. 2.1v

D. 12v

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15. How will an emergency power supply be activated when the normal power supply is disrupted?

A. A manual transfer switch operated by authorized personnel

B. A manual transfer switch operated by anyone

C. By remote control switching

D. Automatic transfer equipment

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Page 4 of 10

16. Under WHMIS when is a workplace label required?

A. When a hazardous product is transferred or poured into a different container

B. When a supplier label is missing, lost or no longer legible

C. When a hazardous product is made or produced at the workplace and is also used in the same workplace

D. All of the above

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17. What is the max amount of 600v thermoset #10AWG RW75 XLPE without jacket conductors you can fit in a 63 trade size conduit?

A. 106

B. 57

C. 75

D. 43

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18. Main components of a PLC include?

A. Input/output module, wiring, relays

B. CPU, Power supply, Input/Output modules, and programming unit

C. Input module, output module, HMI

D. Programming unit, CPU, logic diagrams, semiconductors

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19. What circuit class does a high temperature cutout in an auxiliary boiler need to be?

A. Class 2

B. Class 1

C. Class 3

D. Class 2 low-energy

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20. Which device below doesn’t require supervision from a fire alarm panel?

A. Manual pull station

B. Duct smoke detector

C. Heat detector

D. Magnetic door locks

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Page 5 of 10

21. What protects a PLC from voltage spikes/back emf on de-energization of inductive devices (relays, solenoids etc)?

A. Snubber diode

B. Resistor

C. SCR

D. Choke

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22. Charging lead acid batteries produces what off gas?

A. Methane

B. Nitrogen

C. Carbon monoxide

D. Hydrogen

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23. The operator A + B represents what logic gate?

A. AND

B. OR

C. NOR

D. NAND

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24. What class of fire is an electrical fire?

A. C

B. B

C. A

D. D

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25. What is the definition of an interactive system?

A. Power production system that operates in parallel with and can deliver power to a supply authority system

B. A system that sends real time data to a remote monitoring station

C. A system that has the capability to regulate its own input voltage depending on the load

D. A system that interacts with 3 or more other electrical systems

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Page 6 of 10

26. An electrical cord with the designation SOOW is which of the following?

A. Rating of 600v

B. Has oil resistant insulation and jacketing

C. Good for wet locations

D. All of the above

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27. The waveform below represents the output of a?

full wave rectifierQ1

A. Zener diode

B. Half wave rectifier

C. Snubber diode circuit

D. Full wave rectifier

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28. Flexible cords suitable for extra-hard usage can be used to interconnect solar panels within an array?

A. True

B. False

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29. A boiler is not lighting off, the electrical maintainer witnesses the startup sequence, she notices that the gas valve opens and the sparker is energized and there is a flame but the start sequence times itself out, what is likely the problem?

A. Faulty sparker

B. No power to gas valve

C. Flame rod

D. Build up of material on sparker

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30. You are asked to install a fire devices around an industrial boiler, what device would be best suited for the area?

A. Rate of rise heat detector

B. Fixed heat detector

C. Duct smoke detector

D. Smoke detector

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Page 7 of 10

31. What are the 3 classes of hazardous locations?

A. Gas, dust, fibres/flyings

B. Hydrogen, gasoline, carbon dioxide

C. Gas, Wet locations, dust

D. None of the above

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32. A wind system with a rated power output of 120KW is defined as what type of system?

A. Small wind system

B. Medium wind system

C. Large wind system

D. Custom wind system

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33. What safety device will shut down a forced air furnace on high temperature?

A. High limit cutout

B. Low limit cutout

C. Pressure switch

D. Flame rod

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34. Attenuation is measured in what units?

A. Mhos

B. Webers

C. Decibels

D. Hertz

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35. If a drawing is to scale and the scale of the drawing is 1:10 and the drawing length was 5 inches, what is the real length of the part?

A. 5 inches

B. 10 inches

C. 1 inch

D. 50 inches

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Page 8 of 10

36. What does the abbreviation IC stand for when labelled on a fuse?

A. Internal circuit

B. In Canada

C. Interrupting capacity

D. Internal capacitance

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37. What type of welding method is approved for connecting a grounding conductor to a grounding electrode?

A. Cadweld/Thermit weld

B. Tig weld

C. Tack weld

D. No welding method is approved

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38. What does a class “B” fire alarm circuit require after the last device on the loop?

A. An EOL resistor

B. Intelligent heat detector

C. 4 wire circuit

D. 2 stage fire alarm system

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39. Where would you find device specific wiring instructions for a smoke detector?

A. CAN/ULC S436

B. National building code

C. Section 60 CEC

D. Manufacturer’s instructions

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40. Before you force an instruction on a PLC, what should be considered?

A. Impact it will have on the input devices

B. Impact it will have on scan time

C. Impact it will have on the backplane

D. impact it will have on the output devices

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Page 9 of 10

41. Circuit breakers must be of the trip free type, where in the code book can you find this?

A. 32-100

B. 32-102

C. 12-600

D. 14-300

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42. In a DC motor the effect of armature flux on the main flux is known as?

A. Armature reaction

B. Commutator sync

C. Armature shielding

D. Stator shifting

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43. When a 3 phase SCIM is first started a spike in current is observed for a brief period of time, what is this current called?

A. Rated load current

B. Full load current

C. Locked rotor current

D. In rush current

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44. Overloads in a motor control circuit are used to protect?

A. Motor feeder conductors

B. Workers

C. The motor contactor

D. Stator windings of a motor

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45. In a series DC motor what happens if the load on the motor is increased?

A. Motor speed decreases

B. Motor speed increases

C. Motor speed stays the same

D. Motor stalls

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Page 10 of 10

46. A crane operator lifting a load has to obey which signal from anyone who gives it?

A. Stop

B. Travel left

C. Boom up

D. Boom down slowly

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47. What type of receptacle is shown in the symbol below?

receptacle question

A. Duplex receptacle

B. Switched duplex receptacle

C. Single receptacle

D. 3 way switch

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48. How much free conductor shall be left at each outlet for making joints or connections to electrical equipment?

A. 200mm

B. 125mm

C. 150mm

D. 300mm

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49. Two alternators are synced with no load, the alternators are speeding up and slowing down continuously, what is this effect called?

A. Gravitating

B. Hallucinations

C. Hunting

D. Fishing

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50. Refer to the diagram below, what is the line voltage?

3phase voltage delta q

A. 120v

B. 360v

C. 240v

D. 208v

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