Transducers, Measurement & Instrumentation [GATE (Graduate Aptitude Test in Engineering) Instrumentation]: Questions 1 - 5 of 13

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Question 1

Question

MCQ▾

A Piezoelectric transducer is a voltage source of with an internal impedence of . It is connected to a digital oscilloscope with an input impedance of directly. What is the voltage measured by oscilloscope?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 2

Transducers, Measurement & Instrumentation

Question

MCQ▾

In hygrometer the principle of measurement is

Choices

Choice (4)Response

a.

Change in resistance of salts with humidity

b.

Change in thermal conductivity using thermocouple

c.

Change in oven power with klystron

d.

None of the above

Question 3

Question

MCQ▾

Select the Device which refers to self-generating transducer.

Choices

Choice (4)Response

a.

Piezoelectric

b.

Capacitive

c.

Electromagnetic

d.

Inductive

Question 4

Transducers, Measurement & Instrumentation

Question

MCQ▾

Which of the following is the best method of measurement of temperature of hot bodies retaining energy in visible spectrum?

Choices

Choice (4)Response

a.

Thermistor

b.

Optical pyrometer

c.

Resistance temperature detector

d.

Thermocouple

Question 5

Question

MCQ▾

The Transducer in measurement system used to

Choices

Choice (4)Response

a.

Amplification of the input signal

b.

Modify the system

c.

Used to convert the input signal from one physical form into another

d.

Indicate the measurement

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