Rajasthan Technical Education Second Year Paper 2016 – Electrical Workshop

Rajasthan Technical Education Second Year Paper 2016 – Electrical Workshop

In stair case wiring which type of switch is used ?
(a) SPST
(b) DPST
(c) SPDT
(d) DPDT

Heating element of an electric Iron is made of
(a) Tungsten
(b) Copper
(c) Nichrome
(d) Iron

Internal surface of tube rod is coated with
(a) White colour
(b) Plaster of paris
(c) Fluorescent
(d) Zinc

In washing machine which type of motor is used ?
(a) DC Shuntmotor
(b) Squirrel Cage 3 Phase Motor
(c) Universal motor
(d) Single phase induction motor

ELCB is used for protection from
(a) Over current
(b) Over voltage
(c) Earth leakage
(d) Over heating

In D.C. compound motor total number of terminals are
(a) 2
(b) 4
(c) 6
(d) 8

Which type of motor is used in domestic refrigerator ?
(a) Universal motor
(b) Capcitor motor
(c) D.C. Shunt motor
(d) D.C. Series motor

Ionization Potential of Sodium Vapour Lamp is
(a) 110 V
(b) 220 V
(c) 50 V
(d) 5 V

What is work of choke in Tube Light ?
(a) To start tube
(b) To improve power factor
(c) To control current
(d) To produce heat

In filament Lamp element is made of
(a) Carbon
(b) Tungsten
(c) Magnin
(d) Copper

Halogen Lamp is mainly used for
(a) Play ground
(b) Park
(c) Airport
(d) All of the above

In D.C.compound motor number of windings are
(a) 3
(b) 3
(c) 1
(d) 4

Dielectric strength of transformer oil is
(a) 220 V (r.m.s)
(b) 50 kV (r.m.s)
(c) 20 kV (r.m.s.)
(d) 11 kV (r.m.s)

In D.C Motor sparking at commutator is due to
(a) Field winding to short circuited
(b) Armature winding is open circuited
(c) Brush properly not placed in commutator
(d) All of the above

Growler is used to test and then connect
(a) In A.C supply
(b) In D.C supply
(c) Both (a) and (b)
(d) None of the above