035/2016

2,

7.

Maximum : 100 marks

Time : 1 hour and 15 minutes

Arc heating oceurs when the air between electrodes of opposite polarity becomes :

(A} Moistened (B) Dry

(0) 1011260 (D) None of the above
The meter used to measure the temperature of a furnace is :

(५) hydrometer (B) pyrometer

(C) hygrometer (D) tachometer

Which part is provided in a battery charger to prevent the flow of excessive current into the
battery? S

(ക) Coarse selector (18) Time selector switch

(C) Limiting resistance (D) Transformer

What will happen to the filter circuit in battery charger if the output filter capacitor is
opened? _

(A)Wl.]'lnutfunctinn (B) Will make humming noise

(C) More current will flow (D) No output voltage `

What are the two relative quantities ‏ما‎ be plotted for external characteristics curve for
DC shunt generator?
(^) Field current Va No load voltage (18) Armature current Vs Induced e.m.f
(C) Load current Vs Terminal voltage (D) ‏دما‎ current Vs Induced e.m.f

What will happen to a self excited DC generator, if the generator runs in reverse direction?
(ಯ) The induced e.m.f. is increased
(B) There is no change in the induced e.m.f.
(C) Spark will be produced in the commutator
(D) Residual magnetism in the pole will be destroved

Which is the application of delayed response type diazed fuse?
(ಯ) Motor circuits (B) Heating circuits
(¢) Lighting circuits (D) Electronic circuits

The force between two long parallel conductors is inversely proportional to :
(ಹಿ) current in one conductor (B) distance between the conductors
(C) radius of conductors (D) product of current in two conductors

[P.T.O.]