42.

48.

` 44.

45,

46.

47,

48.

49.

50.

99/2015 8 A

A sheathed 3 core cable is to be used as a power cord for connecting heating appliances. The
type of power cord is used in electric iron :

(5) PVC sheathed (B) Lead sheathed
(0) Silk-cotton-bridle (D) TRubber sheathed

The no load current of an induction motor is ——————— approximately.
(ಗಿ) 40% of full load current (B) 10% of full load current
(¢) 20% of full load current (12) 100% of full load current

The disadvantage of spring control over gravity 0000/೧1:
(A) it does not give a uniform மகம்‌
(B} it can only be used in parallel position
(C) it deteriorates with time
(D) all of the above

The operation of a JFET involves :
(4) ചവി of minority carriers (B) recombination
(¢) flow of majority carriers (D) negative resistance

The simplest way of varying the flux produced by an electro magnet is <
(^) increasing and decreasing the number of turns of the coil
(B) using an exciting coil with number of tapings
(0) varying core position for the exciting coil
(D) varying the current through the exciting coil

The instrument used for measuring medium range of resistance is :
(ಡಿ) series type ohm meter (B) wheat stone bridge |
(C) shunt type ohm meter (D) megger

If a three phase motor operates in single phasing it will altimately make the motor :
(A) to burn out (B) to carry no load
(C) torun with tripple speed (D) not to run efficiently

The brief period during which വേ remains short circuited is known as :
(ಗಿ) neutralising period (8) cross magnatising period
(C) cummulation period (D) progressive period

The reciprocal of impedence 18 known as : <
(ಯ) admittance (18) conductance
(C) susceptance (D) resistance