4688299
Description
Quiz by TRAVIS CANNING, updated more than 1 year ago
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Created by TRAVIS CANNING
over 8 years ago
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Question 1
Question
Compressor lubrication may be divided into two main sections _______ lubrication and ________ lubrication
1. Peripheral
2. Internal
3. Splash
4. External
5. Pressure
Answer
-
1,2
-
3,5
-
2,3,4
-
2,4
Question 2
Question
A double acting reciprocating compressor:
Answer
-
Receives and compresses air at the head end of the cylinder
-
Receives and discharges air at both ends of the cylinder
-
Increases the pressure twice from the inlet valve
-
Has one compression stroke for every crankshaft revolution
-
Must have at least two pistons
Question 3
Question
Two pre-filters are installed on a package industrial screw compressor. They are installed at the inlet of the:
Answer
-
Water/oil seperator
-
Air dryer
-
After filter
-
Air fluid seperator
-
Moisture seperator
Question 4
Question
Reciprocating Compressor valves are usually automatic and open and close by:
Answer
-
Action of a poppet valve
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Movement of the piston covering or uncovering ports
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Operation of an air solenoid valve
-
A pressure difference
-
A camshaft
Question 5
Question
The axial flow compressor's basic operating principle is similar to a:
Answer
-
Centrifugal compressor
-
Reciprocating compressor
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Reaction turbine in reverse
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Reaction turbine
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Rotary compressor
Question 6
Question
The compression Ratio is the ratio of:
Answer
-
Absolute discharge pressure to absolute inlet pressure
-
Gauge discharge pressure to gauge inlet pressure
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The free air intake to the absolute volumetric discharge
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The gauge inlet pressure to the absolute discharge pressure
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Piston diameter to piston stroke
Question 7
Question
In a packaged screw compressor package, the bulk of the moisture is removed in the moisture separator in order to decrease the load in the:
Answer
-
Air/fluid seperator
-
Pre-filter
-
Air dryer
-
After filter
-
Water/Oil seperator
Question 8
Question
The prime purpose of water-cooling or air cooling an air compressors cylinder is to:
Answer
-
Cool the air
-
Reduce moisture and volume of the air
-
Keep the cylinder at a reasonable temperature
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Prevent fire from occurring in the receiver
-
Prevent operator injury
Question 9
Question
An important advantage of a sliding vane compressor is that it:
Answer
-
Does not require internal lubrication
-
Has a high starting torque
-
Does not require inlet or discharge valves
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Requires light nylon timing gears
-
Does not require a prime mover
Question 10
Question
An air filter on an air compressor inlet pipe is used to:
Answer
-
Reduce the air velocity
-
Keep out the moisture
-
Purify the air by removing exhaust process gases
-
Prevent dust and other particulate from entering the compressor
-
Increase the air velocity
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