ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
The groove that is cut in the top half in the lining of a shell bearing
should not extend closer to the ends than:
Select one:
a. 1.7 cm
b. 1.25 cm
c. 10 mm
d. 3 mm -
correct answer ✅b
Temperature relief devices limit the temperature in domestic hot
water systems to no more than:
Select one:
a. 121°C
b. 99°C
c. 79°C
d. the system temperature set point -
correct answer ✅b
,ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
During the Rinse stage when regenerating a sodium zeolite
softener, the solution going to the sewer contains:
Select one:
a. Calcium and magnesium ions
b. Sodium bicarbonates and sulphates
c. Sulphates and bicarbonates
d. Calcium sulphate -
correct answer ✅a
The flow of water in a multi-zone hot water heating system is
controlled by:
Select one:
a. Induction coils in each heating zone
b. A circulating pump for each heating zone
c. Balancing valves
d. Diverter fittings -
correct answer ✅b
,ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
When working on a platform it is important to:
Select one:
a. Notify the applicable government agency
b. Tie off to the scaffold
c. Warn people on the ground of overhead hazards
d. Always wear a lifeline harness -
correct answer ✅c
Castle nuts are used:
Select one:
a. With a split pin or cotter pin
b. To hold shims in place
c. For locking square nuts in place
d. To simplify assembly and disassembly -
correct answer ✅a
Flat glass water gauges are often used because:
Select one:
, ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
a. They are more compact
b. They can withstand higher pressures than tubular gauge glasses
c. A light can be installed behind them
d. It is easier to see the level -
correct answer ✅b
How often should the desiccant be checked during a dry layup?
Select one:
a. Daily.
b. Annually.
c. Bi-weekly to monthly.
d. Semi-annually. -
correct answer ✅c
A type of anti-friction bearing is the _____ .
Select one:
a. Journal bearing
Comprehensive Exam 5 Questions And
Answers
The groove that is cut in the top half in the lining of a shell bearing
should not extend closer to the ends than:
Select one:
a. 1.7 cm
b. 1.25 cm
c. 10 mm
d. 3 mm -
correct answer ✅b
Temperature relief devices limit the temperature in domestic hot
water systems to no more than:
Select one:
a. 121°C
b. 99°C
c. 79°C
d. the system temperature set point -
correct answer ✅b
,ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
During the Rinse stage when regenerating a sodium zeolite
softener, the solution going to the sewer contains:
Select one:
a. Calcium and magnesium ions
b. Sodium bicarbonates and sulphates
c. Sulphates and bicarbonates
d. Calcium sulphate -
correct answer ✅a
The flow of water in a multi-zone hot water heating system is
controlled by:
Select one:
a. Induction coils in each heating zone
b. A circulating pump for each heating zone
c. Balancing valves
d. Diverter fittings -
correct answer ✅b
,ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
When working on a platform it is important to:
Select one:
a. Notify the applicable government agency
b. Tie off to the scaffold
c. Warn people on the ground of overhead hazards
d. Always wear a lifeline harness -
correct answer ✅c
Castle nuts are used:
Select one:
a. With a split pin or cotter pin
b. To hold shims in place
c. For locking square nuts in place
d. To simplify assembly and disassembly -
correct answer ✅a
Flat glass water gauges are often used because:
Select one:
, ABSA: 4th Class Part B -
Comprehensive Exam 5 Questions And
Answers
a. They are more compact
b. They can withstand higher pressures than tubular gauge glasses
c. A light can be installed behind them
d. It is easier to see the level -
correct answer ✅b
How often should the desiccant be checked during a dry layup?
Select one:
a. Daily.
b. Annually.
c. Bi-weekly to monthly.
d. Semi-annually. -
correct answer ✅c
A type of anti-friction bearing is the _____ .
Select one:
a. Journal bearing
