ELECTRICIAN

ELECTRICIAN

The number of parallel paths in simplex lap
winding is equal to...
(a) Two
(b) Number of poles
(c) Number of pair poles
(d) One
Answer: (c) Number of pair poles
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In a lap winding, the number of brushes required
is equal to............
(a) Number of coils
(b) Number of pairs of poles
(c) Number of poles
(d) Commutator  pitch
Answer: (c) Number of poles

In a wave winding, the commutator pitch is
approximately equal to..................
(a) Twice the pole pitch
(b) Thrice the pole pitch
(c) Half the pole pitch
(d) Pole pitch
Answer: (a) Twice the pole pitch

The AC armature winding of an alternator
operates at........the field winding.
(a) The same voltage as
(b) Much higher voltage than
(c) Much less voltage than
(d) Half the voltage than
Answer: (b) Much higher voltage than
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The stator of an alternator is wound for..........on the stator.
(a) A more number of poles than
(b) Less number of poles than
(c) The same number of poles as
(d) Twice the number of poles
Answer: (c) The same number of poles as

The Damper windings are used in the alternators to ……
(a) Reduce eddy current loss
(b) Achieve synchronism
(c) Reduce winding losses
(d) Prevent hunting
Answer: (d) Prevent hunting
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The AC armature winding of an alternator is.................
(a) Always star connected . 
(b) Star delta connected
(c) Generally delta connected
(d) Pi connected
Answer: (a) Always star connected

While testing a Fluorescent tube starter with series
testing board, the starter is considered good if the lamp................
(a) Glows continuously
(b) Does not glow at all
(c) Continuously flickers
(d) Glows initially then turns off permanently
Answer: (c) Continuously flickers

The illurnination power of a lighting source is measured in.
(a) Lumen
(b) Candela
(c) Foot candle
(d) Candle power
Answer: (d) Candle power
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As per IE rules, the lighting load in a sub-circuit
of the house wiring should not be than.........watts.
(a) 1500W
(b) 1200W
(c) 1000W
(d) 800W
Answer: (d) 800W

As per IE rules, the load in a power sub-circuit in
house wiring is normally restricted to........watt
and number of outlets to.........
(a) 5000, two
(b) 3000, two
(c) 4000, three
(d) 4500, four
Answer: (b) 3000, two

In a Fluorescent tube fixture, if the tube does
not strike a glow but both filaments glow
red, the possible defect is............
(a) Opened choke coil
(b) Short circuited choke coil
(c) Starter contacts permanently opened
(d) Starter contacts permanently shorted
Answer: (d) Starter contacts permanently shorted