In a double-acting compressor, the purpose of the crosshead is to:

A - Direct the flow of gas across the head of the compressor B - Join the connecting rod to the piston rod C - Attach the piston directly to the crankshaft D - Attach the crankshaft to the connecting rod Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 6:

Compressor pistons are fitted with wearbands to:

A - Lower the friction between the piston and the cylinder lining B - Increase the friction between the piston and the cylinder lining C - Lower the friction between the piston and the crankshaft D - Create a gas seal around the piston Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 7:

The disc valve basic part labeled "C" in the diagram is called the:

A - Valve springs B - Valve guides C - Valve channels D - Valve seat Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

The reciprocating compressor running gear component that has a threaded hole in one end into which the piston rod fits is called the:

A - Connection rod B - Crosshead C - Cylinder D - Crankshaft Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 9:

In high-pressure ratio and high differential pressure compression applications, which valve type is most commonly used?

A - Plate or disc type B - Strip type C - Poppet type D - None of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 10:

In the diagram of the water-cooled cylinder, the component labeled "D" is called the:

A - Discharge connection B - Discharge valve C - Suction connection D - Crosshead Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct

Question 1:

The gas compressor valve seat provides a means of:

A - Sealing the cylinder area during the compression of the gas B - Opening the cylinder area during the compression of the gas C - Guiding the piston during the compression of the gas D - Lubricating the cylinder during the compression of the gas Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 2:

Compressor crankshafts may be made with counterweights, which serve to:

A - Convert the reciprocating motion of the crankshaft to rotary motion for the pistons B - Attach the piston directly to the crankshaft C - Balance the reciprocating and rotating forces D - Reduce the thrust load on the crankshaft bearings Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 3:

The distance of movement of the plates or strips in the valves of a reciprocating compressor is determined by the discharge pressure of the compressor.

A - True B - False Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

In the two-stage compressor shown here, on the down stroke of the left piston, the _____________closes, and the pressure above the piston and the suction valve discs drops below the suction (crankcase) pressure, causing the _______________ to lift open and allows vapour to pass into the cylinder above the piston.

A - right cylinder; suction valves B - discharge valve; suction valves C - intake valve; left cylinder D - suction port; discharge valve Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

The reciprocating compressor running gear component that transmits the rotational motion of the crankshaft into linear motion is called the:

A - Piston rod B - Piston C - Connecting rod D - Crosshead Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 6:

Compressor pistons are fitted with wearbands to:

A - Lower the friction between the piston and the cylinder lining B - Increase the friction between the piston and the cylinder lining C - Create a gas seal around the piston D - Lower the friction between the piston and the crankshaft Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 7:

The disc valve basic part labeled "A" in the diagram is called the:

A - Stop plate B - Valve seat C - Lower valve body D - Upper valve body Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

The pressure rating of a compressor cylinder is determined by the:

A - Type of cooling system used B - Distance from the outer head to the crankcase C - Wall thickness and material of the inner bore D - Number of integral cast fins which provide increased radiating area Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

The reciprocating compressor running gear component that is supported by the main bearings is called the:

A - Cylinder B - Crankshaft C - Crosshead D - Frame Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 10:

The connecting rods of a reciprocating compressor are constructed of:

A - Cast iron B - Stainless steel C - Aluminum D - Forged steel Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct Question 1:

The reciprocating compressor running gear component that attaches the piston to the crosshead is called the:

A - Piston rod B - Connecting rod C - Frame D - Crankshaft Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 2:

The frame of a reciprocating compressor is almost invariably made of:

A - Stainless steel B - Concrete C - Wrought iron D - Cast iron Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 3:

The reciprocating compressor running gear component that is supported by the main bearings is called the:

A - Frame B - Cylinder C - Crankshaft D - Crosshead Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 4:

The distance of movement of the plates or strips in the valves of a reciprocating compressor is determined by the discharge pressure of the compressor.

A - True B - False Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): B Marked as: Incorrect _______________________________________________

Question 5:

The disc valve basic part labeled "B" in the diagram is called the:

A - Valve channels B - Valve spring C - Poppets D - Valve disc Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 6:

In the two-stage compressor shown here, on the down stroke of the left piston, the _____________closes, and the pressure above the piston and the suction valve discs drops below the suction (crankcase) pressure, causing the _______________ to lift open and allows vapour to pass into the cylinder above the piston.

A - right cylinder; suction valves B - suction port; discharge valve C - intake valve; left cylinder D - discharge valve; suction valves Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 7:

The gas compressor valve seat provides a means of:

A - Opening the cylinder area during the compression of the gas B - Guiding the piston during the compression of the gas C - Sealing the cylinder area during the compression of the gas D - Lubricating the cylinder during the compression of the gas Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 8:

Compressor crankshafts may be made with counterweights, which serve to:

A - Reduce the thrust load on the crankshaft bearings B - Attach the piston directly to the crankshaft C - Convert the reciprocating motion of the crankshaft to rotary motion for the pistons D - Balance the reciprocating and rotating forces Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

The pressure rating of a compressor cylinder is determined by the:

A - Type of cooling system used B - Number of integral cast fins which provide increased radiating area C - Wall thickness and material of the inner bore D - Distance from the outer head to the crankcase Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

The amount of flow that is permitted through any given compressor valve depends on the valve:

A - Impact stress B - Lift C - Compression D - Spring Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): B Marked as: Incorrect Question 1:

Compressor crankshafts may be made with counterweights, which serve to:

A - Reduce the thrust load on the crankshaft bearings B - Balance the reciprocating and rotating forces C - Convert the reciprocating motion of the crankshaft to rotary motion for the pistons D - Attach the piston directly to the crankshaft Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

The connecting rods of a reciprocating compressor are constructed of:

A - Stainless steel B - Forged steel C - Cast iron D - Aluminum Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

The distance of movement of the plates or strips in the valves of a reciprocating compressor is determined by the discharge pressure of the compressor.

A - True B - False Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

The reciprocating compressor running gear component that has a threaded hole in one end into which the piston rod fits is called the:

A - Crankshaft B - Connection rod C - Cylinder D - Crosshead Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 5:

The gas compressor valve seat provides a means of:

A - Sealing the cylinder area during the compression of the gas B - Lubricating the cylinder during the compression of the gas C - Guiding the piston during the compression of the gas D - Opening the cylinder area during the compression of the gas Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 6:

The frame of a reciprocating compressor is almost invariably made of:

A - Stainless steel B - Wrought iron C - Cast iron D - Concrete Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 7:

In the two-stage compressor shown here, on the down stroke of the left piston, the _____________closes, and the pressure above the piston and the suction valve discs drops below the suction (crankcase) pressure, causing the _______________ to lift open and allows vapour to pass into the cylinder above the piston.

A - discharge valve; suction valves B - suction port; discharge valve C - intake valve; left cylinder D - right cylinder; suction valves Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 8:

In a double-acting compressor, the purpose of the crosshead is to:

A - Attach the piston directly to the crankshaft B - Direct the flow of gas across the head of the compressor C - Attach the crankshaft to the connecting rod D - Join the connecting rod to the piston rod Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

The reciprocating compressor running gear component that is supported by the main bearings is called the:

A - Crosshead B - Cylinder C - Crankshaft D - Frame Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

In high-pressure ratio and high differential pressure compression applications, which valve type is most commonly used?

A - Plate or disc type B - Strip type C - Poppet type D - None of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct Question 1:

In the disc type compressor valve, the gas enters through the:

A - Stop plate B - Ribbed upper body C - Ribbed lower body D - Port plate Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

The distance of movement of the plates or strips in the valves of a reciprocating compressor is determined by the discharge pressure of the compressor.

A - True B - False Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

The disc valve basic part labeled "B" in the diagram is called the:

A - Valve spring B - Valve disc C - Poppets D - Valve channels Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

The amount of flow that is permitted through any given compressor valve depends on the valve:

A - Impact stress B - Compression C - Spring D - Lift Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 5:

The frame of a reciprocating compressor is almost invariably made of:

A - Concrete B - Wrought iron C - Cast iron D - Stainless steel Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 6:

The reciprocating compressor running gear component that transmits the rotational motion of the crankshaft into linear motion is called the:

A - Piston rod B - Piston C - Crosshead D - Connecting rod Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): D Marked as: Incorrect _______________________________________________

Question 7:

The disc valve basic part labeled "C" in the diagram is called the:

A - Valve channels B - Valve guides C - Valve springs D - Valve seat Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

In high-pressure ratio and high differential pressure compression applications, which valve type is most commonly used?

A - Plate or disc type B - Strip type C - Poppet type D - None of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 9:

In the diagram of the water-cooled cylinder, the component labeled "D" is called the:

A - Discharge connection B - Suction connection C - Crosshead D - Discharge valve Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 10:

The connecting rods of a reciprocating compressor are constructed of:

A - Forged steel B - Aluminum C - Stainless steel D - Cast iron Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct

Question 1:

The connecting rods of a reciprocating compressor are constructed of:

A - Aluminum B - Stainless steel C - Cast iron D - Forged steel Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 2:

The disc valve basic part labeled "A" in the diagram is called the:

A - Valve seat B - Lower valve body C - Stop plate D - Upper valve body Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 3:

Compressor crankshafts may be made with counterweights, which serve to:

A - Attach the piston directly to the crankshaft B - Reduce the thrust load on the crankshaft bearings C - Convert the reciprocating motion of the crankshaft to rotary motion for the pistons D - Balance the reciprocating and rotating forces Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 4:

The pressure rating of a compressor cylinder is determined by the:

A - Number of integral cast fins which provide increased radiating area B - Wall thickness and material of the inner bore C - Distance from the outer head to the crankcase D - Type of cooling system used Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

The disc valve basic part labeled "B" in the diagram is called the:

A - Poppets B - Valve spring C - Valve channels D - Valve disc Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 6:

In the two-stage compressor shown here, on the down stroke of the left piston, the _____________closes, and the pressure above the piston and the suction valve discs drops below the suction (crankcase) pressure, causing the _______________ to lift open and allows vapour to pass into the cylinder above the piston.

A - intake valve; left cylinder B - suction port; discharge valve C - discharge valve; suction valves D - right cylinder; suction valves Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 7:

In a double-acting compressor, the purpose of the crosshead is to:

A - Direct the flow of gas across the head of the compressor B - Attach the piston directly to the crankshaft C - Join the connecting rod to the piston rod D - Attach the crankshaft to the connecting rod Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 8:

In the disc type compressor valve, the gas enters through the:

A - Port plate B - Stop plate C - Ribbed upper body D - Ribbed lower body Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

The disc valve basic part labeled "C" in the diagram is called the:

A - Valve springs B - Valve channels C - Valve seat D - Valve guides Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

The reciprocating compressor running gear component that has a threaded hole in one end into which the piston rod fits is called the:

A - Connection rod B - Cylinder C - Crosshead D - Crankshaft Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct

Question 1: