1) With the increase in the intensity of light, the resistance of a photovoltaic cell
a. Increases
b. Decreases
c. Remains same
d. None of these
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Answer
Explanation
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ANSWER: Decreases
Explanation:
No explanation is available for this question!
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2) For the measurement of pressure the instruments used can be
a. Mechanical
b. Electro - mechanical
c. Electronic
d. All of these
e. None of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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3) If at one end, the two wires made of different metals are joined together then a voltage will get produced between the two wires due to difference of temp between the two ends of wires. This effect is observed in
a. Thermocouples
b. Thermistors
c. RTD
d. Ultrasonics
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Answer
Explanation
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ANSWER: Thermocouples
Explanation:
No explanation is available for this question!
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4) The transducer used for the measurements is / are
a. Resistance temperature detectors
b. Thermistors
c. Ultrasonic
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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5) The linear variable differential transformer transducer is
a. Inductive transducer
b. Non - inductive transducer
c. Capacitive transducer
d. Resistive transducer
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Answer
Explanation
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ANSWER: Inductive transducer
Explanation:
No explanation is available for this question!
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6) Constantan is used for measurement of dynamic strains. It is an alloy of
a. Constantan is used for measurement of dynamic strains. It is an alloy of
b. Nickel and molybdenum
c. Nickel and chromium
d. Copper and nickel
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Answer
Explanation
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ANSWER: Copper and nickel
Explanation:
No explanation is available for this question!
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7) Strain gauge is a
a. Active device and converts mechanical displacement into a change of resistance
b. Passive device and converts electrical displacement into a change of resistance
c. Passive device and converts mechanical displacement into a change of resistance
d. Active device and converts electrical displacement into a change of resistance
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Answer
Explanation
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ANSWER: Passive device and converts mechanical displacement into a change of resistance
Explanation:
No explanation is available for this question!
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8) Thermistor is a transducer. Its temperature coefficient is
a. Negative
b. Positive
c. Zero
d. None of these
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Answer
Explanation
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ANSWER: Negative
Explanation:
No explanation is available for this question!
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9) Potentiometric transducers are used for the measurement of
a. Pressure
b. Displacement
c. Humidity
d. Both (a) and (b)
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Answer
Explanation
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ANSWER: Both (a) and (b)
Explanation:
No explanation is available for this question!
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10) Function of transducer is to convert
a. Electrical signal into non electrical quantity
b. Non electrical quantity into electrical signal
c. Electrical signal into mechanical quantity
d. All of these
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Answer
Explanation
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ANSWER: Non electrical quantity into electrical signal
Explanation:
No explanation is available for this question!
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