SSC JE Electrical Engineering 23rd Jan 2018 Shift-2
For the following questions answer them individually
A house has 5 fans of 70 W eachthat operate for 16 hours a day and one washing machine of 2000 W that operates for 1 hour per day in the month of June. Whatis the energy consumption (in kWh) of the house in the month of June?
A PMMC typevoltmeter, having a full scale reading of 250 V and an internal resistance of 400 kilo-ohms, is connect with a series resistance of 100 kilo-ohms. Calculate the sensitivity of the voltmeter (in Ohms/Volts).
Determine the percentage voltage error of a potential transformer with the system voltage of 11,000 V and having a turn’s ratio of 104, if the measured secondary voltage is 98 V.
A circuit having powerfactor of 0.8 consumes 40 W. Whatwill be the value of reactive power(in VAR) of the circuit?
Determine the phase angle (in degrees) of a balanced 3-phase star connected system, if the first and the second wattmeter show readings of 200 W and 1200 W respectively.
Which one of the following is the CORRECTexpression for voltmeter sensitivity of PMMC type instrument?
Determine the value of unknown resistance $$R_x$$, (in kΩ)and unknown capacitance $$C_{x}$$ (in $$\mu F$$) respectively for the circuit given below, when no current flows through the detector (D)?
