Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines - Discussion


In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.

[A]. one stroke
[B]. two strokes
[C]. three strokes
[D]. four strokes

Answer: Option B


No answer description available for this question.

V. P. Sharma said: (Jun 27, 2013)  
In a single acting reciprocating compressor there are four strokes.

1. Suction Stroke.

2. Compression Stroke.

3. Power stroke.

4. Exhaust Stroke (delivery stroke).

In this question asking about three strokes. While answer is given two stroke.

Sravan said: (Aug 25, 2013)  
Don't compare ic engine and compressor here first stroke suction at this time inlet valve open outlet valve close and suction occurs upto some pressure and it closes then piston moves upwards then after reaching some pressure outlet valve opens this is done in same stroke. Delivery also in same stroke.

Pavan said: (Oct 1, 2013)  
Internal combustion engine & and compressor are different. Things don't mix them.

At suction stroke piston suck low pressure & low temp. Air from atmosphere (piaton move to down) and then next stroke it compressed at high pressure &. Temp (piston move upward direction) then end of the compression stroke it release the air (delivery stroke) ie. In single acting compressor deliver air only in 2 stroke.

Abhishek Chavan said: (Nov 20, 2013)  
Please explain the example how to came two stroke but why are no four stroke?

Abdul Fatah said: (Mar 12, 2015)  
Single acting compressor has only two strokes on suction and other compressing and discharging.

Rohit Bhise said: (Oct 23, 2015)  
Single acting reciprocating compressor has only suction (1st stroke) and delivery (2nd) but, the question asked is how many how stroke delivery that place in. So the obvious answer is 1stroke.

Kanchan Routh said: (Oct 3, 2020)  
Yes, you are right @Pavan.

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