Which is false statement about multistage compression?

A Power consumption per unit of air delivered is low
B Volumetric efficiency is high
C It is best suited for compression ratios around 7 : 1
D The moisture in air is condensed in the inter-cooler

Correct Answer: Volumetric efficiency is high

- Power consumption per unit of air delivered is low
- It is best suited for compression ratios around 7 : 1
- The moisture in air is condensed in the inter-cooler
Bissoy MCQ
#Mechanical Engineering #Compressors #Gas Turbines And Jet Engines

Related Questions

The advantage of multistage compression over single stage compression is
A Lower power consumption per unit of air delivered
B Higher volumetric efficiency
C Decreased discharge temperature
D All of the above
For minimum work in multistage compression, assuming same index of compression in all stages
A Work done in first stage should be more
B Work done in subsequent stages should increase
C Work done in subsequent stages should decrease
D Work done in all stages should be equal
Multistage compression of air as compared to single stage compression offers the advantage of
A Power saving per unit weight of air delivered
B Moisture elimination in the inter-stage cooler
C Increased volumetric efficiency
D All of the above
In multistage compressor, the isothermal compression is achieved by
A Employing inter-cooler
B By constantly cooling the cylinder
C By running compressor at very slow speed
D By insulating the cylinder
For minimum work required to compress and deliver a quantity of air by multistage compression
A The compression ratio in each stage should be same
B The intercooling should be perfect
C The work-done in each stage should be same
D All of the above
Multistage compression is necessary for high efficiency,
A If the ratio of the delivery pressure to the intake pressure exceeds 5:1
B When large amount of gas is to be compressed
C When the delivered gas is desired at very high velocity
D None of these
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?
A Less power requirement
B Better mechanical balance
C Less loss of air due to leakage past the cylinder
D Lower volumetric efficiency
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to ___________
A Power loss in the coupling device
B Loading effect of the next stage
C The use of many transistors
D The use of many capacitors
The cascade amplifier is a multistage configuration of
A CC-CB
B CE-CB
C CB-CC
D CE-CC
In the initial stages of a multistage amplifier, we use ___________
A RC coupling
B Transformer coupling
C Direct coupling
D None of the above

Next steps