DAY 1 OF THE FREE 5 DAY QUIZ SERIES (QUIZ #2)

1. An automobile manufacturing plant will be installing several 120v HID lighting circuits, what is the maximum over current device you can use for this installation?

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A.20A

B.40A

C.15A

D.50A

2. The electrolyte in a lead acid battery consists of?

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A.Water and sulfuric acid

B.Baking soda and sulfuric acid

C.Mineral oil

D.isopropyl alcohol and sulfuric acid

3. How are batteries rated?

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A.Coulombs per second

B.Ampere hour (A/H)

C.Cell resistance

D.Forward breakover voltage

4. How many duplex receptacles at a minimum are needed in a utility room?

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A.2

B.3

C.0

D.1

5. Normal wear of a commutator is typically what colour?

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A.Chocolate brown colour

B.Red

C.Commutator should not experience any wear

D.Black

6. What is the maximum installation height for a stove receptacle?

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A.150mm

B.130mm

C.120mm

D.1m

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

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A.Fusion welding process

B.Tig weld

C.Tack weld

D.No welding method is approved

8. A cartridge fuse is marked with the letter “P”, what does this mean?

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A.Practical melting point

B.Medium melting point

C.Low melting point

D.High melting point

9. What is the max spacing between supports for Electrical Non-metallic tubing?

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A.2m

B.1.5m

C.1250mm

D.1m

10. You have a 20 HP 3Φ 600V SCIM with a service factor of 1.0 being protected by a non-time delay fuse, What is the Full load current for this motor?

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A.25A

B.22A

C.30A

D.20A

11. What is the maximum weight of a luminaire that can be supported by a ceiling outlet box attached directly to the building structure?

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A.13 kg

B.27 kg

C.15 kg

D.23 kg

12. What has to be installed in an ungrounded electrical supply system?

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A.Low voltage release

B.Supervisory current system

C.Ground detection system

D.Cathodic protection

13. Can temporary electrical installations be interconnected with permanent electrical installations?

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A.Yes as long as they are safe

B.Yes as long as the temporary installation is taken down within 120 days

C.No, they can’t be connected together except if your manager approves

D.No they can’t be connected together except if you have obtained special permission

14. What motor can operate on an AC or DC supply?

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A.Series

B.SCIM

C.Shunt

D.Universal

15. Conductors #8AWG or larger that extend out of raceways must be protected by which means?

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A.Insulating material fastened securely in place that separates conductors from raceway and provides adequate mechanical protection

B.Insulated type bushing

C.Using equipment that has a smoothly rounded throat

D.All of the above

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

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A.Motor speed decreases

B.Motor speed increases

C. Motor speed stays the same

D.Motor stalls

17. Where can the definition of “low voltage release” and “low voltage protection” be found in the CEC?

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A.Section 2

B.Section 0

C.Preface

D.Appendix B

18. What general section of the CEC deals with conductors?

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A.Section 0

B.Section 10

C.Section 2

D.Section 4

19. A class 1 remote control and signal circuit can be supplied by a source not exceeding what voltage?

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A.250v

B.120v

C.240v

D.600v

20. What is the function of a rectifier?

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A.AC in, DC out

B.DC in, AC out

C.Double the frequency of the input

D.Cancel out 2nd harmonics

21. When is a squirrel cage induction motor running at its full load speed?

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A.Supplied with rated voltage and drawing full load current

B.When the rotor is fed with DC and the motor is magnetically locked

C.Supplied with rated voltage and drawing ½ full load current

D.A motor can never reach its full load speed

22. What can be done to decrease the output ripple of a DC generator?

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A.Increase armature coils and commutator bars

B.Add more electromagnets

C.Reduce armature coils

D.Increase the field strength

23. Overloads are designed to protect what?

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A.Conductors

B.Motors

C.Diodes

D.Capacitors

24. A molded case circuit breaker that has an increased trip time on lower fault currents and a decreased trip time on higher fault currents is know as a?

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A.Partial time circuit breaker

B.Parallel time circuit breaker

C.Fault time circuit breaker

D.Inverse time circuit breaker

25. What type of power does a Wattmeter read?

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A.Reactive power

B.Apparent power

C.VAR's

D.True power

26. There are 5 light bulbs in parallel, if one of the bulbs burns out what is the net effect on total resistance of the circuit?

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A. Decreases

B.Increases

C.Stays the same

D.Increase by 50%

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