4688299
Descripción
Test por TRAVIS CANNING, actualizado hace más de 1 año
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Creado por TRAVIS CANNING
hace más de 8 años
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Pregunta 1
Pregunta
Compressor lubrication may be divided into two main sections _______ lubrication and ________ lubrication
1. Peripheral
2. Internal
3. Splash
4. External
5. Pressure
Respuesta
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1,2
-
3,5
-
2,3,4
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2,4
Pregunta 2
Pregunta
A double acting reciprocating compressor:
Respuesta
-
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
Pregunta 3
Pregunta
Two pre-filters are installed on a package industrial screw compressor. They are installed at the inlet of the:
Respuesta
-
Water/oil seperator
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Air dryer
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After filter
-
Air fluid seperator
-
Moisture seperator
Pregunta 4
Pregunta
Reciprocating Compressor valves are usually automatic and open and close by:
Respuesta
-
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
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A pressure difference
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A camshaft
Pregunta 5
Pregunta
The axial flow compressor's basic operating principle is similar to a:
Respuesta
-
Centrifugal compressor
-
Reciprocating compressor
-
Reaction turbine in reverse
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Reaction turbine
-
Rotary compressor
Pregunta 6
Pregunta
The compression Ratio is the ratio of:
Respuesta
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Absolute discharge pressure to absolute inlet pressure
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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
Pregunta 7
Pregunta
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:
Respuesta
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Air/fluid seperator
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Pre-filter
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Air dryer
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After filter
-
Water/Oil seperator
Pregunta 8
Pregunta
The prime purpose of water-cooling or air cooling an air compressors cylinder is to:
Respuesta
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Cool the air
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Reduce moisture and volume of the air
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Keep the cylinder at a reasonable temperature
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Prevent fire from occurring in the receiver
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Prevent operator injury
Pregunta 9
Pregunta
An important advantage of a sliding vane compressor is that it:
Respuesta
-
Does not require internal lubrication
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Has a high starting torque
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Does not require inlet or discharge valves
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Requires light nylon timing gears
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Does not require a prime mover
Pregunta 10
Pregunta
An air filter on an air compressor inlet pipe is used to:
Respuesta
-
Reduce the air velocity
-
Keep out the moisture
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Purify the air by removing exhaust process gases
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Prevent dust and other particulate from entering the compressor
-
Increase the air velocity
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