Power Engineering ABSA 4B exam |\ |\ |\ |\ |\
questions with answers |\ |\
After a bearing has been removed for cleaning, it should be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
soaked for a period of _____ hours in clean solvent.
|\ |\ |\ |\ |\ |\ |\ |\ |\
A) 12 to 16
|\ |\ |\
B) 12 to 14
|\ |\ |\
C) 14 to 16
|\ |\ |\
D) 10 to 12
|\ |\ |\
E) 15 to 16
|\ |\ |\
A
If an oil's viscosity changes a great deal with little temperature
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
change, it will then have a: |\ |\ |\ |\ |\
A) High pour point
|\ |\ |\
B) High carbon residue
|\ |\ |\
C) High viscosity index
|\ |\ |\
D) Low pour point
|\ |\ |\
E) Low viscosity index
|\ |\ |\
E
,Oil additives:
|\
A) Never lose their effect during use of the oil
|\ |\ |\ |\ |\ |\ |\ |\ |\
B) Are not a component of most lubrication oil
|\ |\ |\ |\ |\ |\ |\ |\
C) Should be used as little as possible
|\ |\ |\ |\ |\ |\ |\
D) Should not affect all other characteristics greatly
|\ |\ |\ |\ |\ |\ |\
E) Will always affect the pour point greatly
|\ |\ |\ |\ |\ |\ |\
D
In a bearing, the lubricant reduces the heat produced by:
|\ |\ |\ |\ |\ |\ |\ |\ |\
A) Shock absorption
|\ |\
B) Wear reduction
|\ |\
C) Proper sealing
|\ |\
D) Friction reduction
|\ |\
E) Corrosion reduction
|\ |\
D
The kind of grease used for heavily loaded machinery operating
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
at slow speeds is the:
|\ |\ |\ |\
A) Mixed base grease
|\ |\ |\
B) Sodium base grease
|\ |\ |\
,C) Calcium base grease
|\ |\ |\
D) Acid base grease
|\ |\ |\
E) Specialty grease
|\ |\
E
A multi-stage pump would be used when:
|\ |\ |\ |\ |\ |\
A) A greater volume must be pumped
|\ |\ |\ |\ |\ |\
B) The lift is great
|\ |\ |\ |\
C) The head is great
|\ |\ |\ |\
D) The temperature of the liquid is high
|\ |\ |\ |\ |\ |\ |\
E) There is sufficient floor space
|\ |\ |\ |\ |\
C
The name given to pumps that use gear teeth, vanes, lobes, or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
screws to move the fluid being pumped is the _____ type.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
A) Reciprocating
|\
B) Rotary|\
C) Axial flow
|\ |\
D) Dynamic|\
E) Radial flow
|\ |\
B
, New pump packing should be installed:
|\ |\ |\ |\ |\
A) Every time prior to start up
|\ |\ |\ |\ |\ |\
B) Tight enough to stop leakage
|\ |\ |\ |\ |\
C) Every shut down
|\ |\ |\
D) Every year
|\ |\
E) Loose enough to allow leakage for lubrication
|\ |\ |\ |\ |\ |\ |\
E
It is generally accurate to say that:
|\ |\ |\ |\ |\ |\
A) 9.8 kPa pressure results from every metre of water depth or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
height
B) 10.21 kPa will result from 1 metre of static water head
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
C) Atmospheric pressure has no bearing on static water head
|\ |\ |\ |\ |\ |\ |\ |\ |\
D) A water height or depth of 10.34 m results in 1 kPa
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
E) 1 kPa will result from a water head of 9.8 m
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
A
The liquid to a lantern ring:
|\ |\ |\ |\ |\
A) Should not enter the pump
|\ |\ |\ |\ |\
B) Keeps the air out of the pump
|\ |\ |\ |\ |\ |\ |\
questions with answers |\ |\
After a bearing has been removed for cleaning, it should be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
soaked for a period of _____ hours in clean solvent.
|\ |\ |\ |\ |\ |\ |\ |\ |\
A) 12 to 16
|\ |\ |\
B) 12 to 14
|\ |\ |\
C) 14 to 16
|\ |\ |\
D) 10 to 12
|\ |\ |\
E) 15 to 16
|\ |\ |\
A
If an oil's viscosity changes a great deal with little temperature
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
change, it will then have a: |\ |\ |\ |\ |\
A) High pour point
|\ |\ |\
B) High carbon residue
|\ |\ |\
C) High viscosity index
|\ |\ |\
D) Low pour point
|\ |\ |\
E) Low viscosity index
|\ |\ |\
E
,Oil additives:
|\
A) Never lose their effect during use of the oil
|\ |\ |\ |\ |\ |\ |\ |\ |\
B) Are not a component of most lubrication oil
|\ |\ |\ |\ |\ |\ |\ |\
C) Should be used as little as possible
|\ |\ |\ |\ |\ |\ |\
D) Should not affect all other characteristics greatly
|\ |\ |\ |\ |\ |\ |\
E) Will always affect the pour point greatly
|\ |\ |\ |\ |\ |\ |\
D
In a bearing, the lubricant reduces the heat produced by:
|\ |\ |\ |\ |\ |\ |\ |\ |\
A) Shock absorption
|\ |\
B) Wear reduction
|\ |\
C) Proper sealing
|\ |\
D) Friction reduction
|\ |\
E) Corrosion reduction
|\ |\
D
The kind of grease used for heavily loaded machinery operating
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
at slow speeds is the:
|\ |\ |\ |\
A) Mixed base grease
|\ |\ |\
B) Sodium base grease
|\ |\ |\
,C) Calcium base grease
|\ |\ |\
D) Acid base grease
|\ |\ |\
E) Specialty grease
|\ |\
E
A multi-stage pump would be used when:
|\ |\ |\ |\ |\ |\
A) A greater volume must be pumped
|\ |\ |\ |\ |\ |\
B) The lift is great
|\ |\ |\ |\
C) The head is great
|\ |\ |\ |\
D) The temperature of the liquid is high
|\ |\ |\ |\ |\ |\ |\
E) There is sufficient floor space
|\ |\ |\ |\ |\
C
The name given to pumps that use gear teeth, vanes, lobes, or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
screws to move the fluid being pumped is the _____ type.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
A) Reciprocating
|\
B) Rotary|\
C) Axial flow
|\ |\
D) Dynamic|\
E) Radial flow
|\ |\
B
, New pump packing should be installed:
|\ |\ |\ |\ |\
A) Every time prior to start up
|\ |\ |\ |\ |\ |\
B) Tight enough to stop leakage
|\ |\ |\ |\ |\
C) Every shut down
|\ |\ |\
D) Every year
|\ |\
E) Loose enough to allow leakage for lubrication
|\ |\ |\ |\ |\ |\ |\
E
It is generally accurate to say that:
|\ |\ |\ |\ |\ |\
A) 9.8 kPa pressure results from every metre of water depth or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
height
B) 10.21 kPa will result from 1 metre of static water head
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
C) Atmospheric pressure has no bearing on static water head
|\ |\ |\ |\ |\ |\ |\ |\ |\
D) A water height or depth of 10.34 m results in 1 kPa
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
E) 1 kPa will result from a water head of 9.8 m
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
A
The liquid to a lantern ring:
|\ |\ |\ |\ |\
A) Should not enter the pump
|\ |\ |\ |\ |\
B) Keeps the air out of the pump
|\ |\ |\ |\ |\ |\ |\
