4TH CLASS ABSA FINAL PAPER 2026
QUESTIONS AND SOLUTIONS 100%
CORRECT
◉The two main sources of carbon in the atmosphere are carbon
dioxide and:
Select one:
a. nitrogen
b. carbonation
c. methane
d. living organisms. Answer: c. methane
◉The operator, while blowing off a boiler, should have an assistant
to:
Select one:
a. Open the slow opening valve
b. Close the quick opening valve in a hurry
c. Watch the gauge glass level
d. Open the blow-off tank drain. Answer: c. Watch the gauge glass
level
,◉The field strength of an alternator can be adjusted by varying the
amplitude of the DC power supply to the: Select one:
a. Rotating field
b. Stator windings
c. Rotating stator
d. Pole pieces. Answer: a. Rotating field
◉Why should hard hats never be painted?
Select one:
a. Toxic fumes may be released
b. Paint does not adhere well to plastic
c. Different colors normally indicate varying job positions or
departments in plants
d. Paint will weaken the plastic. Answer: d. Paint will weaken the
plastic
◉Tubes for high pressure service are usually:
Select one:
a. Resistance welded construction
b. Seamless construction
c. Lap welded construction
,d. Fin-tube designs. Answer: b. Seamless construction
◉Power Engineers document the shift activities each shift in log
books, which are________ Select one:
a. Legal documents, required by most jurisdictions in Canada
b. Important for maintenance activities
c. Not required, but usually kept anyway.
d. internal documents. Answer: a. Legal documents, required by
most jurisdictions in Canada
◉A sudden drop in steam pressure causes
Select one:
a. a sudden increase in drum level
b. a rapid collapse of steam bubbles in the boiler
c. "shrinkage"
d. a single element feedwater control to immediately add water to
the drum. Answer: a. a sudden increase in drum level
◉One of the most important features of the first lines drawn in a
sketch is that they:
Select one:
a. Are to precise scale
b. Are bold
, c. Must all show the object outline
d. Show the main proportion of the sketch. Answer: d. Show the
main proportion of the sketch
◉An area in which the atmosphere contains dust in concentrations
high enough to produce explosive or ignitable mixtures, has an
Electrical Classification of:
Select one:
a. Class 1
b. Class 2
c. Class 3
d. Class 4. Answer: b. Class 2
◉A steam trap should be installed below the _______ point in piping
system it serves.
Select one:
a. Coldest
b. Hottest
c. Highest
d. Lowest. Answer: d. Lowest
◉The typical time required to heat a fluidized bed to ignition
temperature prior to the introduction of coal is: Select one:
QUESTIONS AND SOLUTIONS 100%
CORRECT
◉The two main sources of carbon in the atmosphere are carbon
dioxide and:
Select one:
a. nitrogen
b. carbonation
c. methane
d. living organisms. Answer: c. methane
◉The operator, while blowing off a boiler, should have an assistant
to:
Select one:
a. Open the slow opening valve
b. Close the quick opening valve in a hurry
c. Watch the gauge glass level
d. Open the blow-off tank drain. Answer: c. Watch the gauge glass
level
,◉The field strength of an alternator can be adjusted by varying the
amplitude of the DC power supply to the: Select one:
a. Rotating field
b. Stator windings
c. Rotating stator
d. Pole pieces. Answer: a. Rotating field
◉Why should hard hats never be painted?
Select one:
a. Toxic fumes may be released
b. Paint does not adhere well to plastic
c. Different colors normally indicate varying job positions or
departments in plants
d. Paint will weaken the plastic. Answer: d. Paint will weaken the
plastic
◉Tubes for high pressure service are usually:
Select one:
a. Resistance welded construction
b. Seamless construction
c. Lap welded construction
,d. Fin-tube designs. Answer: b. Seamless construction
◉Power Engineers document the shift activities each shift in log
books, which are________ Select one:
a. Legal documents, required by most jurisdictions in Canada
b. Important for maintenance activities
c. Not required, but usually kept anyway.
d. internal documents. Answer: a. Legal documents, required by
most jurisdictions in Canada
◉A sudden drop in steam pressure causes
Select one:
a. a sudden increase in drum level
b. a rapid collapse of steam bubbles in the boiler
c. "shrinkage"
d. a single element feedwater control to immediately add water to
the drum. Answer: a. a sudden increase in drum level
◉One of the most important features of the first lines drawn in a
sketch is that they:
Select one:
a. Are to precise scale
b. Are bold
, c. Must all show the object outline
d. Show the main proportion of the sketch. Answer: d. Show the
main proportion of the sketch
◉An area in which the atmosphere contains dust in concentrations
high enough to produce explosive or ignitable mixtures, has an
Electrical Classification of:
Select one:
a. Class 1
b. Class 2
c. Class 3
d. Class 4. Answer: b. Class 2
◉A steam trap should be installed below the _______ point in piping
system it serves.
Select one:
a. Coldest
b. Hottest
c. Highest
d. Lowest. Answer: d. Lowest
◉The typical time required to heat a fluidized bed to ignition
temperature prior to the introduction of coal is: Select one:
