ELECTRICIAN

ELECTRICIAN

How the conduit pipes are specified?
a) Length in metre
b) Outer diameter in mm
c) Inner diameter in mm
d) Wall thickness in mm
Answer :  b) Outer diameter in mm
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What is the fusing factor for rewireable fuse?
a) 1.1
b) 2.1
c) l.4
d) 2.5
Answer :  c) l.4

What is the purpose of underwriter's knot for
pendent holder connection?
a) Reduce the strain from the terminals of accessories
b) Increase mechanical strength
c) Prevent excessive cap cover pressure
d) Avoid loose connections
Answer :  a) Reduce the strain from the terminals
                     of accessories

Which device converts sunlight into electrical energy?
a) Light emitting diode
b) Liquid crystal diode
c) Photo voltaic cell
d) Light dependent resistor
Answer :  c) Photo voltaic cell

Which type of load is protected by the L-series MCB?
a) Motors
b) Hand tools
c) Geyser
d) Air conditioner
Answer :  c) Geyser
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What is the effect of low current rated cable used
to connect higher current load?
a) Cable damage due to heat
b) Load current increases
c) Voltage drop decreases
d) Voltage drop increases
Answer :  a) Cable damage due to heat

How many two way switches with intermediate
switch are used to control one lamp from
three different places?
a) 1
b) 4
c) 3
d) 2
Answer :

Which method is used to reduce earth resistance
value in a existing earth?
a) Increasing the length of electrode
b) Adding more sand and charcoal in earth pits
c) Keeping wet condition in earth pits always
d) Increasing the diameter of earth electrode
Answer :  c) Keeping wet condition in earth pits always
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Why A.C is required to measure the earth resistance
by using earth resistance tester?
a) Regulate the current
b) Avoid electrolytic emf interference
c) Decrease the voltage drop
d) Increase the voltage drop
Answer :  b) Avoid electrolytic emf interference

What is the advantage of concealed wiring?
a) Easy to maintain
b) Less voltage drop
c) High insulation resistance
d) Protection against moisture
Answer :  d) Protection against moisture

What is the maximum permissible load for
a power sub circuit as per I.E rules?
a) 800 Watt
b) 3000 Watt
c) 2000 Watt
d) 1500 Watt
Answer :   b) 3000 Watt
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Which location the service connection supply
leads to be connected at consumer main
boaid?
a) IC cut out
b) Main switch
c) Energy meter
d) Distribution board
Answer :  c) Energy meter
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Which law secondary cell works?
a) Faradays laws of electromagnetic induction
b) Joule's law
c) Faradays laws of electrolysis
d) Lenz's law
Answer :