ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
When applying to write a Power Engineer certificate of
competency examination, the candidate must: Select one:
a. Undergo mandatory drug testing
b. Hold the next lower class of qualification
c. Pass a criminal records check
d. Pass both a written and oral examination - Correct
Answers ✅b. Hold the next lower class of qualification
A machine lifts a load of 12kN with an applied effort of 4kN.
What distance will the load move if the effort moves a
distance of 8m and the efficiency of the machine is 70%?
Select one:
a. 0.54 m
b. 3.81 m
c. 1.87 m
d. 0.38 m - Correct Answers ✅c. 1.87 m
Which of these is the "Mechanical Refrigeration Code"?
Select one:
a. ASME MRC
b. CSA B51.
c. CSA B52.
d. ASME Section I. - Correct Answers ✅c. CSA B52.
,ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
In order to ensure safe and continuous operation of a
pressure reducing valve, the valve station should have
_________________.
Select one:
a. A safety valve on the high-pressure side
b. A bypass line, plus a safety valve and pressure gauge on
the low-pressure side
c. Thermometers on the inlet and outlet piping
d. A strainer immediately downstream of the valve - Correct
Answers ✅b. A bypass line, plus a safety valve and pressure
gauge on the low-pressure side
If the power dissipated by a resistor is 1.2 kW when supplied
with 110 V, the amperage will be _____ A. Select one:
a. 91.666
b. 19.006
c. 10.91
d. 132 - Correct Answers ✅c. 10.91
The inclined "U" tube manometer:
Select one:
a. Will measure pressure in MPa
b. Can only be used with mercury
c. Is more accurate than the "U" tube manometer
,ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
d. Is more difficult to read than the U-tube manometer -
Correct Answers ✅c. Is more accurate than the "U" tube
manometer
A valve which gives good throttling action, takes less actuator
force, but does not seal well is a: Select one:
a. Double seated valve
b. Reverse acting valve
c. Single seated valve
d. Direct acting valve - Correct Answers ✅a. Double seated
valve
The main component of any computer is the:
Select one:
a. Keyboard
b. Screen
c. Memory
d. Central processing unit - Correct Answers ✅d. Central
processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall
thickness. Select one:
a. Welded only
b. Threaded only
, ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
c. Extra strong (XS)
d. Standard - Correct Answers ✅d. Standard
A reducing agent or fuel could be:
Select one:
a. Carbon monoxide
b. A heavy metal oxide
c. Hydrogen peroxide
d. Concentrated Sulphuric acid - Correct Answers ✅a.
Carbon monoxide
A control device which will change one form of energy into
another form of energy is the: Select one:
a. Logic device
b. Primary element
c. Transducer
d. Transmitter - Correct Answers ✅c. Transducer
The __________ valve requires specific and routine lubrication.
Select one:
a. Butterfly
b. Globe
c. Check
(Verified Answers) 2026
When applying to write a Power Engineer certificate of
competency examination, the candidate must: Select one:
a. Undergo mandatory drug testing
b. Hold the next lower class of qualification
c. Pass a criminal records check
d. Pass both a written and oral examination - Correct
Answers ✅b. Hold the next lower class of qualification
A machine lifts a load of 12kN with an applied effort of 4kN.
What distance will the load move if the effort moves a
distance of 8m and the efficiency of the machine is 70%?
Select one:
a. 0.54 m
b. 3.81 m
c. 1.87 m
d. 0.38 m - Correct Answers ✅c. 1.87 m
Which of these is the "Mechanical Refrigeration Code"?
Select one:
a. ASME MRC
b. CSA B51.
c. CSA B52.
d. ASME Section I. - Correct Answers ✅c. CSA B52.
,ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
In order to ensure safe and continuous operation of a
pressure reducing valve, the valve station should have
_________________.
Select one:
a. A safety valve on the high-pressure side
b. A bypass line, plus a safety valve and pressure gauge on
the low-pressure side
c. Thermometers on the inlet and outlet piping
d. A strainer immediately downstream of the valve - Correct
Answers ✅b. A bypass line, plus a safety valve and pressure
gauge on the low-pressure side
If the power dissipated by a resistor is 1.2 kW when supplied
with 110 V, the amperage will be _____ A. Select one:
a. 91.666
b. 19.006
c. 10.91
d. 132 - Correct Answers ✅c. 10.91
The inclined "U" tube manometer:
Select one:
a. Will measure pressure in MPa
b. Can only be used with mercury
c. Is more accurate than the "U" tube manometer
,ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
d. Is more difficult to read than the U-tube manometer -
Correct Answers ✅c. Is more accurate than the "U" tube
manometer
A valve which gives good throttling action, takes less actuator
force, but does not seal well is a: Select one:
a. Double seated valve
b. Reverse acting valve
c. Single seated valve
d. Direct acting valve - Correct Answers ✅a. Double seated
valve
The main component of any computer is the:
Select one:
a. Keyboard
b. Screen
c. Memory
d. Central processing unit - Correct Answers ✅d. Central
processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall
thickness. Select one:
a. Welded only
b. Threaded only
, ABSA 4TH CLASS PART A REVIEW Q & As
(Verified Answers) 2026
c. Extra strong (XS)
d. Standard - Correct Answers ✅d. Standard
A reducing agent or fuel could be:
Select one:
a. Carbon monoxide
b. A heavy metal oxide
c. Hydrogen peroxide
d. Concentrated Sulphuric acid - Correct Answers ✅a.
Carbon monoxide
A control device which will change one form of energy into
another form of energy is the: Select one:
a. Logic device
b. Primary element
c. Transducer
d. Transmitter - Correct Answers ✅c. Transducer
The __________ valve requires specific and routine lubrication.
Select one:
a. Butterfly
b. Globe
c. Check
