The disc valve basic part labeled "B" in the diagram is called the:
A - Valve spring B - Poppets C - Valve channels D - Valve disc
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 2:
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 3:
The reciprocating compressor running gear component that attaches the piston to the crosshead is called the:
A - Crankshaft B - Piston rod C - Frame D - Connecting rod
Correctness Rule: Single Correct Answer Required
Answer(s) Given: B Correct Answer(s): B Marked as: Correct
_______________________________________________
Question 4:
The gas compressor valve seat provides a means of:
A - Guiding the piston during the compression of the gas B - Lubricating the cylinder during the compression of the gas C - Opening the cylinder area during the compression of the gas D - Sealing the cylinder area during the compression of the gas
Correctness Rule: Single Correct Answer Required
Answer(s) Given: D Correct Answer(s): D Marked as: Correct
_______________________________________________
Question 5:
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