D - Wash the outside of the bottles to prevent contamination of the bath _______________________________________________
Question 18: In order to obtain accurate water-cut percentages, the sample inside the sample contain must not be shaken. A - True B - False _______________________________________________
Question 19: When electricity is used to treat emulsions, the electric field created causes the emulsion particles to: A - Lose their charge B - Dispersed in tiny droplets C - Be mutually attractive D - Be mutually repulsive _______________________________________________
Question 20: The most popular solvent used in the bottle test is:
A - None of the above B - Kerosene C - Xylol D - Benzene
Question 1:
The advantage offered by a "balanced/opposed" design in a heavy-duty, slow-speed gas compressor is that:
A - The compressor vibration is greatly reduced B - It is unnecessary to have equal numbers of compression cylinders on opposite sides of the crankshaft C - The design requires no drive motor D - There are no limitations on piston speed
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 2:
The classification of gas compressor best suited for high flow applications is the:
A - Rotary displacement B - Reciprocating C - Centrifugal D - Axial
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
_______________________________________________
Question 3:
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 - Have many moving parts, which means relatively high maintenance costs D - Do not develop very high discharge pressures
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
_______________________________________________
Question 4:
A gas compressor that gives two compression strokes for every crank shaft revolution is the:
A - Single acting compressor B - Dynamic compressor C - Single cylinder, double-acting compressor D - Multicrank two cylinder configuration
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
_______________________________________________
Question 5:
The terms "Y-type", "L-type", and "V-type" are used to describe:
A - Single crank compressors B - Opposed piston arrangements 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 6:
In a single-acting reciprocating gas compressor, compression takes place:
A - At both end of the cylinder at the same time B - Before the gas enters the cylinder intake valve C - Alternately at both ends of the cylinder D - At one end of the cylinder only
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): D Marked as: Incorrect
_______________________________________________
Question 7:
The classification of gas compressor best suited for high flow, low pressure applications is the:
A - Centrifugal type B - Rotary displacement type C - Reciprocating type D - Axial type
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 8:
There is only one compression stroke for every crankshaft or flywheel revolution in a/an:
A - Single-acting compressor B - Double-acting compressor C - Dynamic compressor D - Angle type multicrank configuration
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 9:
The two general types or designs of dynamic class gas compressors include:
A - Rotary and axial flow B - Axial and centrifugal C - Centrifugal and reciprocating D - Axial and rotary
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 10:
The primary purpose of the internal intake and discharge valves on a reciprocating compressor is to:
A - Control the flow of gas entering and leaving the cylinder B - Control the temperature of the gas inside the cylinder C - Control the flow of cooling water around the cylinder D - Isolate the compressor during maintenance
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
Question 1:
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 2:
The two general types or designs of dynamic class gas compressors include:
A - Rotary and axial flow B - Centrifugal and reciprocating C - Axial and rotary D - Axial and centrifugal
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 3:
The classification of gas compressor best suited for high flow applications is the:
A - Centrifugal B - Reciprocating C - Axial D - Rotary displacement
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 4:
The type of compressor shown here is:
A - Single Cylinder, Single-Stage, Air Cooled Compressor B - Single-Stage, Double-Acting Compressor C - Balanced Opposed Compressor D - Integral Gas Engine Driven Compressor
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 - The gas is compressed by the pushing action of pistons, vanes, or lobes B - The velocity of the gas is converted to pressure in a diffusing section C - A definite amount of gas is compressed for every stroke or revolution D - There are two general types: reciprocating and rotary
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 6:
A gas compressor that gives two compression strokes for every crank shaft revolution is the:
A - Dynamic compressor B - Single acting compressor C - Multicrank two cylinder configuration D - Single cylinder, double-acting compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 7:
The advantage offered by a "balanced/opposed" design in a heavy-duty, slow-speed gas compressor is that:
A - The compressor vibration is greatly reduced B - There are no limitations on piston speed C - It is unnecessary to have equal numbers of compression cylinders on opposite sides of the crankshaft D - The design requires no drive motor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): A Marked as: Incorrect
_______________________________________________
Question 8:
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:
In a single-acting reciprocating gas compressor, compression takes place:
A - At one end of the cylinder only B - Before the gas enters the cylinder intake valve C - Alternately at both ends of the cylinder D - At both end 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 2:
The classification of gas compressor best suited for high flow, low pressure differential applications is the:
A - Rotary displacement B - Reciprocating C - Centrifugal D - Axial
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 3:
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 4:
With the positive displacement class of gas compressor:
A - A definite amount of gas is compressed for every stroke or revolution B - The velocity of the gas is converted to pressure in a diffusing section C - There are two general types or designs: the centrifugal flow and the axial flow D - The gas is first accelerated by impellers or blades
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 velocity of the gas is converted to pressure in a diffusing section C - There are two general types: reciprocating and rotary D - The gas is compressed by the pushing action of pistons, vanes, or lobes
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 6:
The two general types or designs of dynamic class gas compressors include:
A - Axial and centrifugal B - Centrifugal and reciprocating C - Axial and rotary D - Rotary and axial flow
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A 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:
In machine shops where pneumatic equipment is used, what is the most commonly used type of air compressor?
A - Automotive B - Single crank C - Multicrank D - Integral
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 9:
The classification of gas compressor best suited for high flow applications is the:
A - Axial B - Centrifugal C - Reciprocating D - Rotary displacement
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B 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 - The compressor vibration is greatly reduced D - There are no limitations on piston speed
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
Question 1:
A gas compressor that gives two compression strokes for every crank shaft revolution is the:
A - Single acting compressor B - Single cylinder, double-acting compressor C - Multicrank two cylinder configuration D - Dynamic compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 2:
There is only one compression stroke for every crankshaft or flywheel revolution in a/an:
A - Dynamic compressor B - Double-acting compressor C - Single-acting compressor D - Angle type multicrank configuration
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
_______________________________________________
Question 3:
The type of compressor shown here is:
A - Single Cylinder, Single-Stage, Air Cooled Compressor B - Single-Stage, Double-Acting Compressor C - Balanced Opposed Compressor D - Integral Gas Engine Driven Compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 4:
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:
In a double-acting reciprocating gas compressor, compression takes place:
A - Before the gas enters the cylinder intake valve B - Alternately at both ends of the cylinder C - At one end of the cylinder only D - At both ends of the cylinder at the same time
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 9:
The classification of gas compressor best suited for all flows and pressures is the:
A - Axial B - Centrifugal C - Rotary displacement D - Reciprocating
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 10:
A gas compressor that gives two compression strokes for every crank shaft revolution is the:
A - Multicrank two cylinder configuration B - Single acting compressor C - Dynamic compressor D - Single cylinder, double-acting compressor
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 - Single-acting compressor B - Angle type multicrank configuration C - Dynamic compressor D - Double-acting compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 2:
In a double-acting reciprocating gas compressor, compression takes place:
A - At both ends of the cylinder at the same time B - At one end of the cylinder only C - Alternately at both ends of the cylinder D - Before the gas enters the cylinder intake valve
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
_______________________________________________
Question 3:
The classification of gas compressor best suited for high flow, low pressure applications is the:
A - Rotary displacement type B - Reciprocating type C - Centrifugal type D - Axial type
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 4:
The terms "Y-type", "L-type", and "V-type" are used to describe:
A - Opposed piston arrangements B - Single crank compressors C - Horizontal compressor configurations D - Multicrank compressors
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 5:
With the positive displacement class of gas compressor:
A - A definite amount of gas is compressed for every stroke or revolution B - The velocity of the gas is converted to pressure in a diffusing section C - The gas is first accelerated by impellers or blades D - There are two general types or designs: the centrifugal flow and the axial flow
Correctness Rule: Single Correct Answer Required
Answer(s) Given: A Correct Answer(s): A Marked as: Correct
_______________________________________________
Question 6:
The type of compressor shown here is:
A - Balanced Opposed Compressor B - Integral Gas Engine Driven Compressor C - Single-Stage, Double-Acting Compressor D - Single Cylinder, Single-Stage, Air Cooled Compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 7:
The two general types or designs of dynamic class gas compressors include:
A - Centrifugal and reciprocating B - Axial and rotary C - Rotary and axial flow D - Axial and centrifugal
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 8:
In a compressor that uses the balanced/opposed cylinder configuration, the cranks are arranged so that:
A - Opposite pistons are always moving in the same direction B - Opposite pistons are always moving in opposite directions C - No piston movement is required D - All pistons are always moving in the same direction
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 9:
A gas compressor that gives two compression strokes for every crank shaft revolution is the:
A - Dynamic compressor B - Single acting compressor C - Multicrank two cylinder configuration D - Single cylinder, double-acting compressor
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 10:
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 - Have many moving parts, which means relatively high maintenance costs D - Do not develop very high discharge pressures
Correctness Rule: Single Correct Answer Required
Answer(s) Given: C Correct Answer(s): C Marked as: Correct
Question 2:
Question 6:
