Power Engineering Absa 3A2-3A2 Questions with correct verified answers 2026-
2027
1. the purpose of a frequency meter: indicate the frequency of the power being induced
2. the prevent freezing of an industrial firewater system a safe rule to follow is
ensuring the top of the pipe is burried not less than below the lowest
frost line: 0.3m
3. on/off control the final control element is either positive or negitive-
: 100%, 100%
4. some characteristics of the series DC motor include: small current at no load conditions
danger of overspeed if the load is removed
the load current equals the exitation current
5. advantage of a panel mounted alarm annunciator over computer moniter
displays: operator can quickly recognize an alarm by its location on the panel without scrolling
6. is often the first indication of a fire so automatic dectectors should be
used: smoke
7. controlling the identified indirect cause of workplace accidents or incidents
is normally long term development process involving measures or system
changes: preventitive
8. CSA-b51 a pressure vessel installed in a closed hot water system or cooling
system provided a pneumatic cushion or the expansion of water is called: a
cushion tank
9. iron or constantan ca be used in a thermocouple to measure a temp range
of: -210 to 1200
10. difference between the set point and the actual procces variable is known as
offset and is a charecteristic of controllers: Proportional only
11. if an generator looses exitation the rotor accelerates and it operates as an
induction generator running above speed: synchronous, synchronous
12. a double seated balance valve could be described as: passing up to twice as much fluid
as a single port valve, it generally divides the flow in half through to control ports
13. in a thermostatic trap the bellows are usually filled with: alcohol
14. symbol for flux density is and the symbol for mag flux is : B, o with a line
through it
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10
,Power Engineering Absa 3A2-3A2 Questions with correct verified answers 2026-
2027
15. formulas under asme bpvc section 1 power boilers 27.2.2 the value t repre-
sents: minimum thickness of metal
16. a gate valve consists of a gate like actuated by a screwed stem and
handwheel which moves up and down the flow: disc, at right angles to
17. The process of non-catalytic removal of NOx is the addition of to the
flue gas: Ammonia
18. an absolute pressure gauge uses a to sense the pressure: bellows under a
vaccuum
19. flange gaskets used for connecting two pipe lengths are usually made out
of material that is: soft
20. modern transformers are often better than efficient: 95%
21. asme bpvc recommended rules for care and operation of heating boilers: -
section VI
22. corrosive or toxic nature of sulfur compounds combine with oxygen to
make: SO2
23. PLCs where originally desinged to control processes: Sequential
24. what type of insulation if formed into soft masses to be applied to irregular
surfaces: insulating cement
25. two levals of occupational heath and safety legislation in Canada: federal and
jurisdictional
26. single phase transformers: use two common forms of construction known as the core type and the
shell type
27. what code contains recommended guidelines for the care of power boilers-
: asme bpcv section VII
28. bimetal thermometers are sometimes wound in the form of a helix to: increase
the accuracy of the temperature reading
29. pneumatic control valve with an analog valve positioner receives a 4-20 MA
signal what does the positioner require: an I-P transducer
30. the voltage produced in an inductor as a result of the changing magnetic
feild of another inducter is: mutual incuctance
31. why are panel mounted alarms best used for: critical alarms
2/
10
2027
1. the purpose of a frequency meter: indicate the frequency of the power being induced
2. the prevent freezing of an industrial firewater system a safe rule to follow is
ensuring the top of the pipe is burried not less than below the lowest
frost line: 0.3m
3. on/off control the final control element is either positive or negitive-
: 100%, 100%
4. some characteristics of the series DC motor include: small current at no load conditions
danger of overspeed if the load is removed
the load current equals the exitation current
5. advantage of a panel mounted alarm annunciator over computer moniter
displays: operator can quickly recognize an alarm by its location on the panel without scrolling
6. is often the first indication of a fire so automatic dectectors should be
used: smoke
7. controlling the identified indirect cause of workplace accidents or incidents
is normally long term development process involving measures or system
changes: preventitive
8. CSA-b51 a pressure vessel installed in a closed hot water system or cooling
system provided a pneumatic cushion or the expansion of water is called: a
cushion tank
9. iron or constantan ca be used in a thermocouple to measure a temp range
of: -210 to 1200
10. difference between the set point and the actual procces variable is known as
offset and is a charecteristic of controllers: Proportional only
11. if an generator looses exitation the rotor accelerates and it operates as an
induction generator running above speed: synchronous, synchronous
12. a double seated balance valve could be described as: passing up to twice as much fluid
as a single port valve, it generally divides the flow in half through to control ports
13. in a thermostatic trap the bellows are usually filled with: alcohol
14. symbol for flux density is and the symbol for mag flux is : B, o with a line
through it
1/
10
,Power Engineering Absa 3A2-3A2 Questions with correct verified answers 2026-
2027
15. formulas under asme bpvc section 1 power boilers 27.2.2 the value t repre-
sents: minimum thickness of metal
16. a gate valve consists of a gate like actuated by a screwed stem and
handwheel which moves up and down the flow: disc, at right angles to
17. The process of non-catalytic removal of NOx is the addition of to the
flue gas: Ammonia
18. an absolute pressure gauge uses a to sense the pressure: bellows under a
vaccuum
19. flange gaskets used for connecting two pipe lengths are usually made out
of material that is: soft
20. modern transformers are often better than efficient: 95%
21. asme bpvc recommended rules for care and operation of heating boilers: -
section VI
22. corrosive or toxic nature of sulfur compounds combine with oxygen to
make: SO2
23. PLCs where originally desinged to control processes: Sequential
24. what type of insulation if formed into soft masses to be applied to irregular
surfaces: insulating cement
25. two levals of occupational heath and safety legislation in Canada: federal and
jurisdictional
26. single phase transformers: use two common forms of construction known as the core type and the
shell type
27. what code contains recommended guidelines for the care of power boilers-
: asme bpcv section VII
28. bimetal thermometers are sometimes wound in the form of a helix to: increase
the accuracy of the temperature reading
29. pneumatic control valve with an analog valve positioner receives a 4-20 MA
signal what does the positioner require: an I-P transducer
30. the voltage produced in an inductor as a result of the changing magnetic
feild of another inducter is: mutual incuctance
31. why are panel mounted alarms best used for: critical alarms
2/
10
