Light Sensors_1 Objective Questions:


Ques 1. Which of the following is not covered under Mechanical energy domain?
a) Distance
b) Latent heat
c) Force
d) Size

Answer: b

Ques 2. Which of the following form the basis of Electrical domain?

a) Current
b) Resistance
c) Inductance
d) All of the above
Answer: d

Ques 3. The sensors are classified on the basis of

a) Functions
b) Performance
c) Output
d) All of the above
Answer: d

Ques 4. The following is not a static performance parameter to be looked into before selecting a parameter.
a) Range
b) Deflection
c) Stability
d) Error
Answer: b

Ques 5. The following main dynamic characteristic(s) is usually considered in Mechatronics application of sensors.

a) Response time
b) Rise time
c) Time constant
d) All of the above

Answer: d

Ques 6. The ability to give same output reading when same input value is applied repeatedly is known as
a) Stability
b) Repeatability
c) Accuracy
d) Sensitivity
Answer: b

Ques 7. It is the ability of the sensor to indicate the same output over a period of time for a constant input.

a) Stability
b) Resolution
c) Error
d) Impedance

Answer: a

Ques 8. It is the time required to come to an output value within the specified error level.

a) Response time
b) Rise time
c) Settling time
d) None of the above
Answer: c

Ques 9. Following is the coded output.
a) Modulation of amplitude
b) Modulation of frequency
c) Modulation of pulse width
d) All of the above
Answer: d

Ques 10. Following is not an example of transducer.

a) Analogue voltmeter
b) Thermocouple
c) Photo electric cell
d) Pneumatic cylinder
Answer: a

These are most asked Light Sensors mcqs with answers and most important light Sensors  interview and Viva question.
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