# Revision 1

## Quiz by Ramon Velasco

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10 questions
• Q1
What is the minimum height of socket outlet above floor level?
B. 40cm
A. 30 cm
C. 20cm
D. 60 cm
30s
• Q2
The height of switch is between………..above floor level.
30 to 45 cm
75 to 88 cm
1 to 1.5 m
2 to 2.7 m
30s
• Q3
Calculate the resistance ( R ) supplied by 24 volts and the current drawn is 4 A in circuit shown.
12 ohms
2 ohms
8 ohms
6 ohms
30s
• Q4
How many intermediate switch needed to control a lamp from 6 locations?
6
1
4
2
30s
• Q5
Photocells convert ……… energy into electrical energy.
Chemical
Light
Mechanical
Nuclear
30s
• Q6
What is the trip current rating of RCD for lighting circuit?
0.03 A
0.3 mA
3.3A
300 mA
30s
• Q7
Insulation test is carried out to ensure that
all switches are working
there is power
the insulation between wires have acceptable value
there is no cut between wires
30s
• Q8
What is the standard size of Line and neutral wire used for ring main circuit?
2 mm2
1.5 mm2
3 mm2
2.5 mm2
30s
• Q9
Calculate the value of voltage from the circuit shown.
2 volts
6 volts
4 volts
1 volts
30s
• Q10
A device used to measure the energy consumed
Kilo-Watt-Hour Meter
Kilo-Watt-Hour Meter
MCCB
Service entrance Cable
30s

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