ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
1. Which of the following is an example of a loss of latent heat?
Steam condenses
Water evaporates
Ice melts
Refrigerant evaporates: A
2. Steam coils with long tube lengths:
Are likely to freeze when the incoming air isextremely cold (say -35°C)
Have the greatest freezing problems at temperatures approaching €"2°C.
Cause overheating and poor set pointtracking during cold weather
Are unlikely to freeze at any temperature.: B
3. If a new boiler is not boiled out correctly, the result may be:
Refractory damage
Excessive waterside corrosion
Excessively high water circulation rates
Foaming: D
4. In the event of a power failure, which of the following will likely require a
manual restart when power is restored?
,ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
small condensate return pumps
large air compressors
unit heater fans
air dryers: B
5. One purpose of the small valve on top of the shell of most boilers, which is
not required by code, is to:
allow water into the boiler when the boiler is being drained or cooled prevent-
ing the formation of a vacuum.
allow water to escape before the steam stop valve is opened during the
warm-up period.
allow air to escape from the boiler when the boiler is being filled with water.
allow air into the boiler when the boiler is being filled with water.: C
6. The cheapest and most commonly used grease is:
Potassium base
Chlorine base
Lime base
Sulphate base: C
,ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
7. The purpose of shaft sealing on a pump is to:
Keep air in the pump
Keep the packing gland cool
Reduce fluids from leaking along the pump shaft
Prevent lubricating oil from leaving the pump: C
8. When leached away from cooling tower wood, it is less able to
resist decay.
sap is
lignin is
cellulose is
natural extractives are: D
9. In a chemical pulping process, lignin is removed from chipped wood in the:
Recovery boiler
Blow tank
Hogger
Digester: D
10. For an alkaline boil out, a boiler is fired and maintained under steam pres-
sure for about:
, ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
7 days
30 Days
48 hours
10 hours: C
11. Priming of a centrifugal pump refers to:
Removal of liquid from the pump
Filling the pump casing with liquid and removing the air
Lifting the pump
Closing the vent on the pump casing: B
12. To reduce air temperature between stages, are used.
intercoolers
aftercoolers
receivers
air dryers: A
13. The most common Group B refrigerant is
R-290
R-717
R-134a
1. Which of the following is an example of a loss of latent heat?
Steam condenses
Water evaporates
Ice melts
Refrigerant evaporates: A
2. Steam coils with long tube lengths:
Are likely to freeze when the incoming air isextremely cold (say -35°C)
Have the greatest freezing problems at temperatures approaching €"2°C.
Cause overheating and poor set pointtracking during cold weather
Are unlikely to freeze at any temperature.: B
3. If a new boiler is not boiled out correctly, the result may be:
Refractory damage
Excessive waterside corrosion
Excessively high water circulation rates
Foaming: D
4. In the event of a power failure, which of the following will likely require a
manual restart when power is restored?
,ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
small condensate return pumps
large air compressors
unit heater fans
air dryers: B
5. One purpose of the small valve on top of the shell of most boilers, which is
not required by code, is to:
allow water into the boiler when the boiler is being drained or cooled prevent-
ing the formation of a vacuum.
allow water to escape before the steam stop valve is opened during the
warm-up period.
allow air to escape from the boiler when the boiler is being filled with water.
allow air into the boiler when the boiler is being filled with water.: C
6. The cheapest and most commonly used grease is:
Potassium base
Chlorine base
Lime base
Sulphate base: C
,ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
7. The purpose of shaft sealing on a pump is to:
Keep air in the pump
Keep the packing gland cool
Reduce fluids from leaking along the pump shaft
Prevent lubricating oil from leaving the pump: C
8. When leached away from cooling tower wood, it is less able to
resist decay.
sap is
lignin is
cellulose is
natural extractives are: D
9. In a chemical pulping process, lignin is removed from chipped wood in the:
Recovery boiler
Blow tank
Hogger
Digester: D
10. For an alkaline boil out, a boiler is fired and maintained under steam pres-
sure for about:
, ABSA PART B QUESTIONS WITH VERIFIED CORRECT ANSWERS 2026-2027
7 days
30 Days
48 hours
10 hours: C
11. Priming of a centrifugal pump refers to:
Removal of liquid from the pump
Filling the pump casing with liquid and removing the air
Lifting the pump
Closing the vent on the pump casing: B
12. To reduce air temperature between stages, are used.
intercoolers
aftercoolers
receivers
air dryers: A
13. The most common Group B refrigerant is
R-290
R-717
R-134a
