CMPR 6007_Gas Compression - Compressor Components 1 page

Question 1:

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

_______________________________________________

Date: 2015-12-11; view: 816