SSC JE ELECTRICAL 2019 WITH SOLUTION SET-2 QUIZ

The combined inductance of two coils connected in a series is 0.6H and 0.1H, depending on the relative directions of the currents to the coils. If one of the coils when isolated has a self-inductance of 0.2 H, then calculate the natural inductance?

0.015 H

1.5 H

0.15 H

0.125 H

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Which of the following motors can be connected across a single-phase AC supply?

DC shunt motor

Cumulative compound motor

Differential compound motor

DC Series Motor

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____comes under the category of high-frequency heating?

Infrared heating

Resistance heating

Eddy current heating

Arc heating

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Four types of power plants have been given out of which three are alike in some manner and one is different. Select the odd one?

Solar power plant

Hydro-electric power plant

Thermal power plant

Nuclear power plant

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Lower efficiency, lower power factor, are the features of which of the following motors?

Single-phase induction motor

Three-phase synchronous motor

DC shunt motor

Three-phase induction motor

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In Boolean algebra (A. Ā) + A

1

Ā

0

A

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The impedance at resonance offered by a parallel resonant circuit is

Maximum given by L/CR

Minimum given by I/CR

Minimum given by L/CR

Maximum given by I/CR

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The work done on or by a unit N-pole in moving once around a closed path is equal to

The product of current and number of turns enclosed by that path

Magnetic flux density

The product of flux and number of turns enclosed by that path

Reluctance

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While estimating domestic wiring cost, if the length of the PVC conduit required is 62 meters, then what is the length of the cable required?

62 meters

186 meters

100 meters

124 meters

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Which of the following heating element has the lowest operating temperature?

Eureka

Nichrome

Graphite

Kanthal

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