ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

66) No load test is conducted in a transformer to find out

Answer is:

Total iron loss

67) Change in resistance per ohm per degree centigrade is called

Answer is:

Temperature coefficient of resistance

68) A frequency of AC supply used in India for domestic purposes is

Answer is:

50 Hz

69) In a 3 phase system, three phased voltages are displayed by an angle

Answer is:

120 degree

70) In order to reduce hysterisis losses the core of electrical machines are generally made of

Answer is:

Silicon steel