ABSA 4TH CLASS PART A REVIEW
1. When applying to write a Power Engineer certificate of competency examina-
tion, 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
2. 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
3. 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.
4. 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
5. 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
6. 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
7. A valve which gives good throttling action, takes less actuator force, but does
not seal well is a
Select one
a. Double seated valve
1. When applying to write a Power Engineer certificate of competency examina-
tion, 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
2. 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
3. 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.
4. 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
5. 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
6. 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
7. A valve which gives good throttling action, takes less actuator force, but does
not seal well is a
Select one
a. Double seated valve
