Unit 18 - Prepare for general electrical installations Quiz 2
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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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