GATE IN topic:process-control PYQs & Answers — Page 56

Questions 551–560 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 56 of 65

A 300 V, 5A, 0.2 pf low power factor wattmeter is used to measure the power consumed by a load. The wattmeter scale has 150 divisions and the pointer is on the 100ᵗʰ division. The power consumed by the load (in Watts) is ____ .

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As shown in the figure, temperature

is measured using a K type thermocouple. It has a sensitivity of 40

V/°C. The gain (G) of the ideal instrumentation amplifier is 25. If the output

is 96 mV, then the value of

(in °C) is ___.

Diagram for Instrumentation Engineering question 22

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A piezoelectric pressure sensor has a bandpass characteristic with cut-off frequencies of 0.1 Hz and 1 MHz, and a sensitivity of 100 mV/kPa. The sensor is subjected to a static constant pressure of 100 kPa. Its steady-state output will be

Your answerChoose one option.

0 V

0.1 V

1 V

10 V

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An amplitude modulated signal is shown in the figure. The modulation index is (up to one decimal place) ______.

Diagram for Instrumentation Engineering question 24

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An optical pulse containing

photons is incident on a photodiode and

electron-hole pairs are created. The maximum possible quantum efficiency (in %) of the photodiode is ______.

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Given

, the value of the line integral

along the straight line

from

Your answerChoose one option.

3/16

−5/12

−1

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Two bags

and

have equal number of balls. Bag

has 20% red balls and 80% green balls. Bag

has 30% red balls, 60% green balls and 10% yellow balls. Contents of bags

and

are mixed thoroughly and a ball is randomly picked from the mixture. What is the chance that the ball picked is red?

Your answerChoose one option.

20%

25%

30%

40%

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Consider the following system of linear equations:

Here

and

are the unknowns and

is a real constant. The value of

for which there are infinite number of solutions is

Your answerChoose one option.

−3

−6

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Consider the following equations

where p and q are constants.

that satisfies the above equations is

Your answerChoose one option.

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In the given circuit, superposition is applied. When

is set to 0 V, the current

is −6 A. When

is set to 0 V, the current

is +6 A. Current

(in A) when both sources are applied will be (up to two decimal places) ____.

Diagram for Instrumentation Engineering question 30

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GATE IN topic:process-control PYQs

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Question 30