ISRO Scientist or Engineer Electrical 2014
For the following questions answer them individually
ISRO Scientist or Engineer Electrical 2014 - Question 21
The main disadvantagesof using short pitch winding in alternators is that it
ISRO Scientist or Engineer Electrical 2014 - Question 22
Armature reaction in an alternator mainly affects
ISRO Scientist or Engineer Electrical 2014 - Question 23
A universal motor is one which
ISRO Scientist or Engineer Electrical 2014 - Question 24
If the field of a synchronous motor is under excited, the power factor will be
ISRO Scientist or Engineer Electrical 2014 - Question 26
Two bulbs, one 250V, 100 W and second 250V, 25 W are connectedin series and 440V AC, 50Hzis applied across the two bulbs. Whichof the following will happen,
ISRO Scientist or Engineer Electrical 2014 - Question 27
A wave form shown as Input is applied across primary of a pulse transformer which has 1 : 1 turns ratio. The output on the secondary side will be as shown in the Figure
ISRO Scientist or Engineer Electrical 2014 - Question 28
The following circuit (shown in Figure) resonates at
ISRO Scientist or Engineer Electrical 2014 - Question 29
The distribution system shown in Figure is to be protected by over current system of protection
For proper fault discrimination directional over current relays will be required at locations
ISRO Scientist or Engineer Electrical 2014 - Question 30
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1 Ω. The phase angle between the primary and
secondary current is
