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LMRC JE 2018 EE: Practice Quiz 19

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Question 1

A 230 V, 50 Hz single-phase energy meter has a load current of 10 A at p.f. of 0.8 lagging. The energy consumed by the load in 2 minutes is

Question 2

The most commonly used semiconductor in the manufacture of a transistor is………….

Question 3

A load Z draws 12 kVA at a power factor of 0.856 lagging from a 120 V r.m.s. sinusoidal source. The complex power is

Question 4

Breakdown torque of a 3-phase induction motor of negligible stator impedance rotor resistance; rotor reactance) is

Question 5

Assertion (A): Bus admittance matrix is a sparse matrix.
Reason (R): In load flow studies, one of the buses is taken as a slack bus.

Question 6

The Thevenin impedance of a source is Description: 13_Phasor-Algebra_files\image230.pngwhile the peak Thevenin voltage is Description: 13_Phasor-Algebra_files\image231.pngThe maximum available average power from the source is

Question 7

The base of a transistor is…………doped.

Question 8

What is the form of the Ybus matrix for carrying out load flow studies by Gauss-Seodal method of a power system having mesh connection of nodes?

Question 9

In, the ammeter reading will be

Question 10

Compact Gas Insulated Switchgear System comprises of:
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Apr 28ESE & GATE EE