1|Page
ABSA 4TH CLASS PART A REVIEW Practice Actual Exam
Newest Actual Exam With Complete 1000 Questions And
Correct Detailed Answers (Verified Answers) |Already Graded
A+
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 - 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 - ANSWERS--c. 1.87 m
Which of these is the "Mechanical Refrigeration Code"?
,2|Page
Select one:
a. ASME MRC
b. CSA B51.
c. CSA B52.
d. ASME Section I. - ANSWERS--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 - 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 - ANSWERS--c. 10.91
The inclined "U" tube manometer:
,3|Page
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 - 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 - 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 - ANSWERS--d. Central processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall
thickness. Select one:
a. Welded only
b. Threaded only
, 4|Page
c. Extra strong (XS)
d. Standard - 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 - 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 - ANSWERS--c. Transducer
The __________ valve requires specific and routine lubrication.
Select one:
a. Butterfly
b. Globe
c. Check
d. Tapered plug - ANSWERS--d. Tapered plug
ABSA 4TH CLASS PART A REVIEW Practice Actual Exam
Newest Actual Exam With Complete 1000 Questions And
Correct Detailed Answers (Verified Answers) |Already Graded
A+
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 - 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 - ANSWERS--c. 1.87 m
Which of these is the "Mechanical Refrigeration Code"?
,2|Page
Select one:
a. ASME MRC
b. CSA B51.
c. CSA B52.
d. ASME Section I. - ANSWERS--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 - 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 - ANSWERS--c. 10.91
The inclined "U" tube manometer:
,3|Page
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 - 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 - 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 - ANSWERS--d. Central processing unit
In most sizes of pipe, Schedule 40 corresponds to _____ wall
thickness. Select one:
a. Welded only
b. Threaded only
, 4|Page
c. Extra strong (XS)
d. Standard - 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 - 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 - ANSWERS--c. Transducer
The __________ valve requires specific and routine lubrication.
Select one:
a. Butterfly
b. Globe
c. Check
d. Tapered plug - ANSWERS--d. Tapered plug
