SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

0.8
0.9
1
0.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M > (L1L2)0.5
M = (L1 − L2)/2
M = (L1 + L2)/2
M ≤ (L1L2)0.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-1
_____ is NOT a component in a thermal power plant

Chimney
Economizer
Boiler
Reactor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = (ωT)/60
Pmech = ωT
Pmech = (2πωT)/60
Pmech = (2πωT)

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP