Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
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 - Correct Answers ✅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 - Correct Answers ✅E
Oil additives:
A) Never lose their effect during use of the oil
B) Are not a component of most lubrication oil
,Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
C) Should be used as little as possible
D) Should not affect all other characteristics greatly
E) Will always affect the pour point greatly - Correct
Answers ✅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 - Correct Answers ✅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 - Correct Answers ✅E
A multi-stage pump would be used when:
A) A greater volume must be pumped
,Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
B) The lift is great
C) The head is great
D) The temperature of the liquid is high
E) There is sufficient floor space - Correct Answers ✅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 - Correct Answers ✅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 - Correct
Answers ✅E
It is generally accurate to say that:
, Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
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 - Correct
Answers ✅A
The liquid to a lantern ring:
A) Should not enter the pump
B) Keeps the air out of the pump
C) Should always come from the same pump
D) Should be warm at all times
E) Keeps grease from leaking out - Correct Answers ✅B
The purpose of "wear rings" in centrifugal pumps is to:
A) Eliminate the need for a relief valve
B) Prevent wear at the pump discharge
C) Prevent wear on the pump inlet
D) Increase the efficiency
E) Lower the pump pressure - Correct Answers ✅D
and Answers (Top Grade Assured) 2026
Update
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 - Correct Answers ✅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 - Correct Answers ✅E
Oil additives:
A) Never lose their effect during use of the oil
B) Are not a component of most lubrication oil
,Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
C) Should be used as little as possible
D) Should not affect all other characteristics greatly
E) Will always affect the pour point greatly - Correct
Answers ✅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 - Correct Answers ✅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 - Correct Answers ✅E
A multi-stage pump would be used when:
A) A greater volume must be pumped
,Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
B) The lift is great
C) The head is great
D) The temperature of the liquid is high
E) There is sufficient floor space - Correct Answers ✅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 - Correct Answers ✅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 - Correct
Answers ✅E
It is generally accurate to say that:
, Power Engineering ABSA 4B Questions
and Answers (Top Grade Assured) 2026
Update
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 - Correct
Answers ✅A
The liquid to a lantern ring:
A) Should not enter the pump
B) Keeps the air out of the pump
C) Should always come from the same pump
D) Should be warm at all times
E) Keeps grease from leaking out - Correct Answers ✅B
The purpose of "wear rings" in centrifugal pumps is to:
A) Eliminate the need for a relief valve
B) Prevent wear at the pump discharge
C) Prevent wear on the pump inlet
D) Increase the efficiency
E) Lower the pump pressure - Correct Answers ✅D
