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

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

Question 9:

The primary purpose of the internal intake and discharge valves on a reciprocating compressor is to:

A - Isolate the compressor during maintenance B - Control the temperature of the gas inside the cylinder C - Control the flow of gas entering and leaving the cylinder D - Control the flow of cooling water around the cylinder Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

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

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

Question 1:

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

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

Question 2:

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

A - Are very limited in possible compression ratios B - Have a relatively low efficiency C - Do not develop very high discharge pressures 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 3:

The type of compressor shown here is:

A - Balanced Opposed Compressor B - Single Cylinder, Single-Stage, Air Cooled Compressor C - Single-Stage, Double-Acting Compressor D - Integral Gas Engine Driven Compressor Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

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

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

Question 6:

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

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

Question 7:

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

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

Question 8:

With the positive displacement class of gas compressor:

A - There are two general types or designs: the centrifugal flow and the axial flow B - The gas is first accelerated by impellers or blades C - A definite amount of gas is compressed for every stroke or revolution D - The velocity of the gas is converted to pressure in a diffusing section Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

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

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

Question 10:

The advantage offered by a "balanced/opposed" design in a heavy-duty, slow-speed gas compressor is that:

A - The design requires no drive motor B - It is unnecessary to have equal numbers of compression cylinders on opposite sides of the crankshaft C - There are no limitations on piston speed D - The compressor vibration is greatly reduced Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct

Question 1:

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