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DMRC 2018 Electrical Engineering : Quiz 13

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Question 1

What is the distortion factor of the second lowest-order harmonic of a voltage waveform comprising of the harmonics 1, 3, 5, 7,…?

Question 2

Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 8 MJ/MVA. Then each machine having inertia constant of –

Question 3

An alternator has an internal voltage of E₁ = 1.8 p.u. and X = 0.8 p.u. is connected to a synchronous motor with internal voltage of E₂ = 1.2 p.u. and X = 0.6 p.u. The reactance of the line connecting the alternating to the motor is 0.4 p.u. When the generator supplies 1 p.u. power Calculate the rotor angle (in Degree) difference between two machines –

Question 4

It is desired to build class

push-pull amplifier having maximum power output of

What should be the power rating of circuit?

Question 5

Two parallel metal plates maintained at a potential difference of 1000 V are separated by 0.02 m. An electron is placed between the two plates. The force experienced by the electron is

Question 6

When a load of

is connected across a 20 mA current source, it is found that only 18 mA flows in the load. What is the internal resistance of the source?

Question 7

When a certain motor is operated for 30 minutes, it consumes 0.75 kWh of energy. During that time, its total energy loss is

How many joules of work does it perform in 30 minutes?

Question 8

The open loop transfer function of a unity feedback control system is given by

For the system to be stable the range of K is

Question 9

The loop transfer function of the system

. The root locus plot of the system has

Question 10

An 8085 microprocessor executes “STA 1234H” with starting address location 1FFEH (STA copies the contents of the Accumulator to the 16-bit address location). While the instruction is fetched and executed, the sequence of values written at the address pins

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ESE & GATE EE General

Jan 13ESE & GATE EE