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Unit 18 - Prepare for general electrical installations Quiz 3
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1. You are not allowed to use cell phone unless permitted
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3. Penalized if caught cheating
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5. Leave the exam room as soon as you finish
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Left to right
Q1
Score: 1
Residual current device.
Starter contactor
Motor rated fuse
Surge protective device
Q2
Score: 1
Low resistance fault causing a fault current to flow
Caused by faulty appliances
Occurs in a sound circuit
Current greater than nominal flows
Q3
Score: 1
large overload faults
short circuits between live and neutral
earth-leakage faults
a nail hammered into a wall, shorting-out live and neutral
Q4
Score: 1
Electronic
Magnetic
Thermal
Thermal magnetic
Q5
Score: 1
High Blow Capacity
High Breaking Capability
High Breaking Capacity
High Blow Capacity
Q6
Score: 1
During an earth fault
During a short-circuit fault
When a motor becomes jammed
When a shower is switched on
Q7
Score: 1
Protective devices like fuses and breakers would not be activated
Over voltage
Over current
Under voltage
Q8
Score: 1
severing live conductors with cable cutters
large machines (motors) starting up
insulation failure in a circuit
incorrect conductor terminations (L to E for example)
Q9
Score: 1
Fault protection
Indirect contact
Basic protection
Direct contact
Q10
Score: 1
Discharge lamps may flicker or go out
Transient can be twice the line voltage
Register on the energy meter as increased use of power
Insulation damage
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