1) Which valve is also known as memory valve?
a. single pilot signal valve
b. double pilot signal valve
c. roller lever valve
d. logic valve
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Answer
Explanation
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ANSWER: double pilot signal valve
Explanation:
No explanation is available for this question!
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2) Mass of water vapour in unit volume of air is known as
a. relative humidity
b. absolute humidity
c. saturation quantity
d. none of the above
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Answer
Explanation
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ANSWER: absolute humidity
Explanation:
No explanation is available for this question!
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3) What is difference between regulator and pressure switch?
a. regulator operates at set value pressure while pressure switch operates with slight fluctuation in pressure
b. pressure switch operates at set value pressure while regulator operates with slight fluctuation in pressure
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Answer
Explanation
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ANSWER: regulator operates at set value pressure while pressure switch operates with slight fluctuation in pressure
Explanation:
No explanation is available for this question!
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4) Where is an intercooler connected in a two stage compressor?
a. intercooler is connected after the two stage compressor
b. intercooler is connected between the two stages of the compressor
c. intercooler is connected before the two stage compressor
d. none of the above
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Answer
Explanation
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ANSWER: intercooler is connected between the two stages of the compressor
Explanation:
No explanation is available for this question!
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5) Which of the following is a component used in air generation system?
a. pressure switch
b. pressure gauge
c. drier
d. intercooler
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Answer
Explanation
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ANSWER: drier
Explanation:
No explanation is available for this question!
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6) Which of the following factors is/are considered while selecting a compressor?
a. type of oil filter required
b. volumetric efficiency
c. viscosity of the liquids used
d. all of the above
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Answer
Explanation
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ANSWER: volumetric efficiency
Explanation:
No explanation is available for this question!
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7) Which type of compressor requires a reservoir for compressed air and why?
a. rotary compressor to avoid pulsating effect
b. reciprocating compressor to avoid pulsating effect
c. both rotary and reciprocating compressors to avoid pulsating effect
d. none of the above
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Answer
Explanation
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ANSWER: reciprocating compressor to avoid pulsating effect
Explanation:
No explanation is available for this question!
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8) Which of the following systems generate more energy when used in industrial applications?
a. hydraulic systems
b. pneumatic systems
c. both systems generate same energy
d. cannot say
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Answer
Explanation
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ANSWER: hydraulic systems
Explanation:
No explanation is available for this question!
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