Technical Test SSC JE: Electrical Engineering (EE)- 7 - Electrical Engineering (EE) MCQ
30 Questions MCQ Test - Technical Test SSC JE: Electrical Engineering (EE)- 7
A stand alone engine driven synchronous generator is feeding a partly inductive load. A capacitor is now connected across the load to completely nullify the inductive current. For this operation condition
A transistor may be used as a switching device or as a
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In an ideal transformer primary and secondary induced emfs are
Factors affecting the values of resistances are
The function of starter in dc motor is to
Murray loop test is used to locate the
The maximum efficiency for a transformer occurs at 80% of full load. Its core is Pc and ohmic loss is Poh at full load. For this, transformer, the ratio of Pc/Poh is
At low speed of three brush generator
The rotor of a stepper motor has no
The small pockets of air in the high voltage cable provide _____ relative permittivity,____ electric field and at these sites breakdown is likely to be initiated
Which of the following is correct ?
As compared to shunt and compound motors series motor have the highest torque becauseof its comparatively ____ at the start
Which element is used for making an electric iron element ?
A 2 cm long coil has 40 turns and carries a current of 650 mA. The magnetising force of the coil is
In a parallel a.c. circuit power loss is due to
An electric pyrometer is an instrument used to measure
A 200/100 V, 10 KVA transformer has 60 transformation ratio of the transformer ?
A synchronous capacitor is an over-excited motor running at
If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is
Star-delta starter of an induction motor
In the circuit shown in the figure, i(t) is a unit step current. The steady-state value of v(t) is
Two coils have self inductances of 0.09 H and 0.01 H and mutual inductance of 0.015 H. The coefficient of coupling between the coils is
The configuration that can be used as a constant current source is
The DC current gain of a transistor in CE configuration is 100. Find its DC current gain in common base configuration
Starting torque of synchronous motor is
The maximum power developed in the synchronous motor will depend on
In an ac circuit Isinf is called
In the circuit shown in the figure below, the current supplied by the sinusoidal current source I is
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