TRAVIS CANNING
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power engineering 3b2 Quiz on 4.8 Compressor Theory and Designs, created by TRAVIS CANNING on 29/02/2016.

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TRAVIS CANNING
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4.8 Compressor Theory and Designs

4.8 Compressor Theory and Designs

Question 1 of 10

1

Compressor lubrication may be divided into two main sections _______ lubrication and ________ lubrication
1. Peripheral
2. Internal
3. Splash
4. External
5. Pressure

Select one of the following:

  • 1,2

  • 3,5

  • 2,3,4

  • 2,4

Explanation

Question 2 of 10

1

A double acting reciprocating compressor:

Select one of the following:

  • Receives and compresses air at the head end of the cylinder

  • Receives and discharges air at both ends of the cylinder

  • Increases the pressure twice from the inlet valve

  • Has one compression stroke for every crankshaft revolution

  • Must have at least two pistons

Explanation

Question 3 of 10

1

Two pre-filters are installed on a package industrial screw compressor. They are installed at the inlet of the:

Select one of the following:

  • Water/oil seperator

  • Air dryer

  • After filter

  • Air fluid seperator

  • Moisture seperator

Explanation

Question 4 of 10

1

Reciprocating Compressor valves are usually automatic and open and close by:

Select one of the following:

  • Action of a poppet valve

  • Movement of the piston covering or uncovering ports

  • Operation of an air solenoid valve

  • A pressure difference

  • A camshaft

Explanation

Question 5 of 10

1

The axial flow compressor's basic operating principle is similar to a:

Select one of the following:

  • Centrifugal compressor

  • Reciprocating compressor

  • Reaction turbine in reverse

  • Reaction turbine

  • Rotary compressor

Explanation

Question 6 of 10

1

The compression Ratio is the ratio of:

Select one of the following:

  • Absolute discharge pressure to absolute inlet pressure

  • Gauge discharge pressure to gauge inlet pressure

  • The free air intake to the absolute volumetric discharge

  • The gauge inlet pressure to the absolute discharge pressure

  • Piston diameter to piston stroke

Explanation

Question 7 of 10

1

In a packaged screw compressor package, the bulk of the moisture is removed in the moisture separator in order to decrease the load in the:

Select one of the following:

  • Air/fluid seperator

  • Pre-filter

  • Air dryer

  • After filter

  • Water/Oil seperator

Explanation

Question 8 of 10

1

The prime purpose of water-cooling or air cooling an air compressors cylinder is to:

Select one of the following:

  • Cool the air

  • Reduce moisture and volume of the air

  • Keep the cylinder at a reasonable temperature

  • Prevent fire from occurring in the receiver

  • Prevent operator injury

Explanation

Question 9 of 10

1

An important advantage of a sliding vane compressor is that it:

Select one of the following:

  • Does not require internal lubrication

  • Has a high starting torque

  • Does not require inlet or discharge valves

  • Requires light nylon timing gears

  • Does not require a prime mover

Explanation

Question 10 of 10

1

An air filter on an air compressor inlet pipe is used to:

Select one of the following:

  • Reduce the air velocity

  • Keep out the moisture

  • Purify the air by removing exhaust process gases

  • Prevent dust and other particulate from entering the compressor

  • Increase the air velocity

Explanation

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