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In a double-acting reciprocating gas compressor, compression takes place:

A - Alternately at both ends of the cylinder B - At one end of the cylinder only C - Before the gas enters the cylinder intake valve D - At both ends of the cylinder at the same time Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 5:

With the dynamic class of gas compressor:

A - There are two general types: reciprocating and rotary B - The gas is compressed by the pushing action of pistons, vanes, or lobes C - The velocity of the gas is converted to pressure in a diffusing section D - A definite amount of gas is compressed for every stroke or revolution Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 6:

The classification of gas compressor best suited for high flow, low pressure applications is the:

A - Reciprocating type B - Rotary displacement type C - Axial type D - Centrifugal type Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 7:

The classification of gas compressor best suited for all flows and pressures is the:

A - Rotary displacement B - Centrifugal C - Reciprocating D - Axial Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 8:

The two general types or designs of dynamic class gas compressors include:

A - Rotary and axial flow B - Axial and rotary C - Axial and centrifugal D - Centrifugal and reciprocating Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

Automotive reciprocating compressors in the single and multi-stage configurations are:

A - Low-speed, double-acting units B - High-speed, single-acting units C - Low-speed, single-acting units D - High-speed, double-acting units Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 10:

In machine shops where pneumatic equipment is used, what is the most commonly used type of air compressor?

A - Multicrank B - Integral C - Single crank D - Automotive Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct Question 1:

There is only one compression stroke for every crankshaft or flywheel revolution in a/an:

A - Angle type multicrank configuration B - Single-acting compressor C - Double-acting compressor D - Dynamic compressor Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

The classification of gas compressor best suited for high flow, low pressure applications is the:

A - Axial type B - Rotary displacement type C - Reciprocating type D - Centrifugal type Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

The classification of gas compressor best suited for high flow applications is the:

A - Rotary displacement B - Axial C - Reciprocating D - Centrifugal Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 4:

In a compressor that uses the balanced/opposed cylinder configuration, the cranks are arranged so that:

A - Opposite pistons are always moving in opposite directions B - Opposite pistons are always moving in the same direction C - All pistons are always moving in the same direction D - No piston movement is required Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 5:

In a single-acting reciprocating gas compressor, compression takes place:

A - At one end of the cylinder only B - At both end of the cylinder at the same time C - Before the gas enters the cylinder intake valve D - Alternately at both ends of the cylinder Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 6:

A major disadvantage of reciprocating compressors, compared to other designs is that they:

A - Have a relatively low efficiency B - Do not develop very high discharge pressures C - Are very limited in possible compression ratios D - Have many moving parts, which means relatively high maintenance costs Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 7:

The terms "Y-type", "L-type", and "V-type" are used to describe:

A - Opposed piston arrangements B - Multicrank compressors C - Horizontal compressor configurations D - Single crank compressors Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 8:

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