Skip to content
Quiz : ISRO Technician Electrical – B/2019
#1. Which of the following is a true for Hot wire ammeter?
use thermal effect of measurement
deflection is proportional to square of current
measure RMS value of current
all the above
#2. The permissible frequency variation according to Indian electricity rule?
#3. Synchronous speed of a 12 pole synchronous motor when the supply frequency 50 Hz?
#4. Hols are provided in the aluminium disc of an energy meter is to....?
#5. As per indian electricity standard, What is the allowable voltage variation in low or medium voltage supply?
#6. According to which law, the back emf in DC motor opposes the applied voltage?
#7. The impedance ratio of transformer is equal to....?
inverse of transformer ratio
square of transformr ratio
inverse of square of transformer ratio
#8. Which of the device is a single excited magnetic field system?
DC series motor
DC shunt motor
#9. A triplex wave winding have .... parallel path?
#10. The open circuit characteristics of a DC generator is also called its ..... characteristics?
none of these
You may also like...
error: Content is protected !!