ABSA 4TH CLASS PART A EXAM REVIEW | COMPLETE QUESTIONS
WITH 100% RATED EXPERT SOLUTIONS |2026 LATEST UPDATED
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 - (answer)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 - (answer)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. - (answer)c. CSA B52.
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 - (answer)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 - (answer)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
d. Is more difficult to read than the U-tube manometer - (answer)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 - (answer)a. Double seated valve
The main component of any computer is the:
, Select one:
a. Keyboard
b. Screen
c. Memory
d. Central processing unit - (answer)d. Central processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall thickness. Select one:
a. Welded only
b. Threaded only
c. Extra strong (XS)
d. Standard - (answer)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 - (answer)a. Carbon monoxide
WITH 100% RATED EXPERT SOLUTIONS |2026 LATEST UPDATED
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 - (answer)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 - (answer)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. - (answer)c. CSA B52.
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 - (answer)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 - (answer)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
d. Is more difficult to read than the U-tube manometer - (answer)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 - (answer)a. Double seated valve
The main component of any computer is the:
, Select one:
a. Keyboard
b. Screen
c. Memory
d. Central processing unit - (answer)d. Central processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall thickness. Select one:
a. Welded only
b. Threaded only
c. Extra strong (XS)
d. Standard - (answer)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 - (answer)a. Carbon monoxide
