Mock test – SSC JE
#1. The magnetic material used for making permanent magnet is.....?
#2. In a three phase induction motor crawling happens at...?
#3. In a capacitor start single phase induction motor, the current in the...?
#4. Dielectric loss is propotional to...?
#5. A circuit has inductance of 2 H. If the circuit current changes at the rate of 10A/sec, then self induced emf is...?
emf = L X di/dt = 2×10= 20V
#6. The B-H curve of.....will be a straight line passing through the origin?
#7. Hysteresis is the phenomenon in the magnetic circuit by which...?
#8. The AC bridge that used for measurement of dielectric loss of a capacitor is....?
#9. The main advantage of temporary magnet is that we can...?
#10. Two holes are drilled in the disc on a diameter of energy meter to....?
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