List the means of capacity control for reciprocating compressors.

List the means of capacity control for reciprocating compressors. 
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1 Answer

Answer :

On/off control

 Load and unload control

 Multi-step control
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Related questions

Vertical type reciprocating compressors are used in the capacity range of _____ a) 50 – 150 cfm b) 200 – 500 cfm c) Above 10ooo cfm d) 10 – 50 cfm

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Give major classifications of compressors and the basic principle of its working.

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List the components of a compressed air system.

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Air Conditioning/ Electrical

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Electricity or Air Conditioning

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Explain the simple steps that can be followed in shop – floor for quantification of compressed air leakages.

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Can you explain how temperature of inlet air affects the energy consumption of an air compressor?

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What are the limitations of a centrifugal compressor operation?

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For every 4°C raise in air inlet temperature of an air compressor, the power consumption will increases by_____ a) 2% b) 1% c) 3% d) 4%

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The basic function of air dryer in a compressor is: a. prevent dust from entering compressor b. storage and smoothening pulsating air output c. reduce the temperature of the air before it enters the next state to increase efficiency d. to remove remaining traces of moisture after after-cooler

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Description : The ratio of isothermal power to actual measured input power of a compressor is known as: a) Isothermal efficiency b) Volumetric Efficiency c) Barometric efficiency d) None 

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The volumetric efficiency of the compressor ______ with the increase in altitude of place a) increases b) decreases c) does not change d) None

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The specific power consumption of non lubricated compressor compared to lubricated type is ____ a) Lesser b) Same c) Higher d) None

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Which one of the following statements is correct? A. Reciprocating compressors are used to supply large quantities of air at a lower pressure ratio B. Centrifugal compressors are used to supply large quantities of air at a lower pressure ratio C. Centrifugal compressors are used to supply small quantities of air at a lower pressure ratio D. Centrifugal compressors cannot be run at high speed because of impeller, diffuser and casing.

Description : Which one of the following statements is correct? A. Reciprocating compressors are used to supply large quantities of air at a lower pressure ratio B. Centrifugal compressors are used to supply ... . Centrifugal compressors cannot be run at high speed because of impeller, diffuser and casing.

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In reciprocating compressors, one should aim at compressing the air A. Adiabatically B. Isentropically C. Isothermally D. Polytropically

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Centrifugal compressors compared to reciprocating compressors (A) Require less space (B) Have quieter operation (C) Have lower operating costs (D) All (A), (B) and (C)

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How do screw compressors differ from reciprocating ones?

Description : How do screw compressors differ from reciprocating ones?

Last Answer : All air compressors are divided into two types: reciprocating and screw, and many enterprises are faced with the problem of choosing a compressor. This choice affects not only the efficiency of the ... for screw compressor equipment. Based on materials from the site http://compressor.dukon.ru/ .

Explain construction and working of two stage reciprocating air compressors.

Description : Explain construction and working of two stage reciprocating air compressors.

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Gyratory crushers compared to the reciprocating jaw crushers (A) Have greater capacity per unit of discharge area (B) Crush intermittently (C) Are less suitable for coarse materials (D) Have less steady power consumption

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Last Answer : (A) Have greater capacity per unit of discharge area

Multistage compressors are used in industry, because they (A) Reduce the cost of compressor (B) Reduce the size requirement (C) Resemble closely to isothermal compression (D) Are easy to control

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Last Answer : (C) Resemble closely to isothermal compression

Purpose of relief valve in a reciprocating pump is to (A) Protect the pump against developing excessive pressure (B) Facilitate unidirectional flow of liquid (C) Reduce the discharge pressure (D) Control the rate of discharge

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What is the best refrigeration compressors?

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wattage of air compressors?

Description : wattage of air compressors?

Last Answer : The average air compressor uses only about 120v. Which is the average house socket. Thus using about 400 Watts of power.