SSC JE 2019-20 Technical Quiz 53

Which one of the materials is used to fix the screw on concrete wall and ceiling?

A DC generator used for AC welding should have ___________ .

The air preheater in thermal power plant is called as

A 3-phase delta connected system is supplied by a line voltage of 400 V. The value of phase current is 70 A. What is the power (in kW) consumed by the system, if the current lags the voltage by 60 degrees?

The current in the circuit shown below is 4 A. Calculate the magnetic field intensity (in A-turns/m) in the core, if the winding has 50 tums.

A solenoid has a diameter of 6 cm and a length of 60 cm and it comprises of 7000 turns. Calculate the energy stored (in J) in the solenoid, if 10 A current flows through it.

Which of the following is the cause of meter phase error in induction type energy meter?

An Isolation Transformer has Primary to Secondary turns ratio of

Calculate the January month electricity bill for a room containing 40W lamp working 10 hours daily and unit cost is 1 rupee

When a synchronous motor is running at synchronous speed, the damper winding produces