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Unit 18 - Prepare for general electrical installations Quiz 2
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1. Remove all the handouts and phones
2. Talking is not allowed
3. Raise up your hand if you need anything.
4. Do not cheat because you would be penalized if you are caught
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Right to left
Left to right
Q1
Score: 1
a. A lighting circuits.
b. A water heater circuit.
c. A security alarm circuit.
d. A three-phase motor circuit.
Q2
Score: 1
a.Electric shock from direct contact.
b.Electric shock from indirect contact.
c. Electric shock from over-current.
d. Electric shock from under voltage.
Q3
Score: 1
a. Large circuit currents.
b. Large short circuit currents.
c. Out of balance circuit currents.
d. Reduction in circuit currents.
Q4
Score: 1
a. Excessive load
b. Defective motor
c. Open circuit
d. Ground fault
Q5
Score: 1
fault protection
a circuit protective conductor
a fuse
a consumer unit
Q6
Score: 1
fault protection
an overcurrent
an overload current
a short-circuit current
Q7
Score: 1
a. earth
b. earthing
c. bonding conductor
d. circuit protective conductor
Q8
Score: 1
earthing
bonding
basic protection
fault protection
Q9
Score: 1
a. Over-voltage
b. Under voltage
c. Over current
d. Stable voltage between neutral conductors and the installation earth
Q10
Score: 1
a. It is expensive
b. Needs extra voltage to operate
c. Requires time for the heat to build in the heater before the bimetal bends
d. Operates instantaneous
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