ABSA 4B ACTUAL Questions with Correct Answers (Grade A+)
Question 1: Fluid film lubrication: 1-Eliminates all bearing friction 2-Is different from flood lubrication
3-Supports heavy loads 4-Prevents wear during start-up
Answer: 3
Question 2: Which definition does NOT match the purpose of a pump? 1-Provides lubricating oil and
supplies fuel to oil burners 2-Circulates cooling water in a system, often called a cooling water pump
3-Supplies potable water, is also known as a domestic water pump 4-Provides a chemical feed in small
capacity units
Answer: 1
Question 3: Which code describes the recommended procedure for testing flame safeguard devices?
1-ASME-BPVC.VI 2-ASME-B31.5 3-ASME Section IV 4-ASME Section I|
Answer: 1
Question 4: Negative pressure in a sanitary drainage system may result in: 1-Clogging of drain pipes
2-Build up of scale in water closets 3-Loss of trap sealing water 4-Forcing of sewer gases through traps
Answer: 3
Question 5: _are often used to aid the return of condensate through the return piping of large
complexes. 1-Boiler feed pumps 2-Vacuum injectors 3-Vacuum pumps 4-Vacuum breakers
Answer: 3
Question 6: With regard to hot oil leaving the heater, the operating parameter of particular importance
is the oil: 1-Pressure 2-Velocity 3-Temperature 4-Viscosity
Answer: 3
Question 7: When control of lighting from four locations is required: 1-A single 4-way switch is used
2-The system must be an engineered design, according to the Canadian Electrical Code 3-A
combination of 3-way switches and 4-way switches are used 4-Four two-way switches are used
Answer: 3
Question 8: A turbine overspeed trip: 1-Trips the turbine if it is overloaded 2-Is installed on all turbines
Answer: 2
Page 1
,Question 9: Short radius elbows should be provided with 1-Stiffeners 2-Turning vanes 3-Mitre elbows
4-Noise attenuators
Answer: 2
Question 10: _ are often used to aid the return of condensate through the return piping of large
complexes. 1-Boiler feed pumps 2-Vacuum injectors 3-Vacuum pumps / Correct 4- vacuum breakers
Answer: 3
Question 11: Compared to a steam heating system, if a hot water heating system develops a leak,
damage will 1-Be greater in the steam system 2-Be greater in the hot water system 3-Be about the same
in either system 4-Be minimal due to the automatic drain system
Answer: 2
Question 12: When replacing or removing an anti-friction ball bearing, the applied force should: 1-Not
be transmitted through the bearing balls 2-Always be against the inner race 3-Always be against the
outer race 4-Be made only after heating the bearing
Answer: 1
Question 13: When replacing or removing an anti-friction ball bearing, the applied force should: 1-Not
be transmitted through the bearing balls 2-Always be against the inner race 3-Always be against the
outer race 4-Be made only after heating the bearing
Answer: 1
Question 14: When operating the soot blowers for internal inspection, what should the load of the
boiler be at? 1-100% 2-Below 175 kPa 3-Adjusted as required by the plant 4-Above 50%
Answer: 4
Question 15: The final step when replacing a firetube is: 1-Re-expansion 2-Hydrostatic test 3-Seal
welding 4-Annealing the tube ends
Answer: 2
Question 16: Turbine lubricating oil: 1-Contaminates the exhaust steam 2-Must mix well with water
3-Can be used to operate the turbine governor 4-Lubricates the labyrinth gland
Answer: 3
Page 2
, Question 17: What is a disadvantage of a hot water heating system compared to a steam system?
1Effective water temperature buffering 2-Smaller boiler 3-Larger than average maintenance cost
4-More costly
Answer: 4
Question 18: Tubular gauge glasses: 1-Are suitable for pressures up to about 3000 kPa 2-Are made of
glass, in order to resistant boiler alkalinity 3-Indicate the level more accurately than other forms of
water level indication 4-Can only be installed on low-pressure boilers
Answer: 1
Question 19: What is a disadvantage of a hot water heating system compared to a steam system?
1-Effective water temperature buffering 2-Smaller boiler 3- Larger than average maintenance cost
4-More costly
Answer: 4
Question 20: With respect to steam trap installations, which of the following statements is FALSE?
1-Choose a steam trap based on the pressure difference across the trap, and a minimum capacity
corresponding to three times the coil condensate rate. 2-Locate the steam trap so that its outlet is at
least 30 cm above the coil condensate outlet. 3-Trap each steam coil separately. 4-Drip the steam supply
main through a steam trap into the return condensate main, and not through the steam coil.
Answer: 2
Question 21: What type of lighting directs all or most of the luminous intensity down, toward the work
area? 1-Indirect 2-Direct 3-Redirect 4-Incandescent
Answer: 2
Question 22: A high water level in a boiler: 1-Will cause the high water cut-off to shut down the boiler
2-Is usually caused by a boiler feed pump malfunction 3-Will necessitate an immediate shutdown and
cool down 4-May cause water carryover into the header
Answer: 4
Question 23: The HVAC induction system gets its name from 1-The way air in the room is mixed with
the supply air 2-The type of fan coils used 3-The type of air handling unit used
Answer: 1
Question 24: When Teflon is used as part of the mechanical seal, the maximum temperature of oil that
can be pumped by a hot oil pump is: 1-100°C 2-250°C 3-150°C 4-200°C
Answer: 4
Page 3
Question 1: Fluid film lubrication: 1-Eliminates all bearing friction 2-Is different from flood lubrication
3-Supports heavy loads 4-Prevents wear during start-up
Answer: 3
Question 2: Which definition does NOT match the purpose of a pump? 1-Provides lubricating oil and
supplies fuel to oil burners 2-Circulates cooling water in a system, often called a cooling water pump
3-Supplies potable water, is also known as a domestic water pump 4-Provides a chemical feed in small
capacity units
Answer: 1
Question 3: Which code describes the recommended procedure for testing flame safeguard devices?
1-ASME-BPVC.VI 2-ASME-B31.5 3-ASME Section IV 4-ASME Section I|
Answer: 1
Question 4: Negative pressure in a sanitary drainage system may result in: 1-Clogging of drain pipes
2-Build up of scale in water closets 3-Loss of trap sealing water 4-Forcing of sewer gases through traps
Answer: 3
Question 5: _are often used to aid the return of condensate through the return piping of large
complexes. 1-Boiler feed pumps 2-Vacuum injectors 3-Vacuum pumps 4-Vacuum breakers
Answer: 3
Question 6: With regard to hot oil leaving the heater, the operating parameter of particular importance
is the oil: 1-Pressure 2-Velocity 3-Temperature 4-Viscosity
Answer: 3
Question 7: When control of lighting from four locations is required: 1-A single 4-way switch is used
2-The system must be an engineered design, according to the Canadian Electrical Code 3-A
combination of 3-way switches and 4-way switches are used 4-Four two-way switches are used
Answer: 3
Question 8: A turbine overspeed trip: 1-Trips the turbine if it is overloaded 2-Is installed on all turbines
Answer: 2
Page 1
,Question 9: Short radius elbows should be provided with 1-Stiffeners 2-Turning vanes 3-Mitre elbows
4-Noise attenuators
Answer: 2
Question 10: _ are often used to aid the return of condensate through the return piping of large
complexes. 1-Boiler feed pumps 2-Vacuum injectors 3-Vacuum pumps / Correct 4- vacuum breakers
Answer: 3
Question 11: Compared to a steam heating system, if a hot water heating system develops a leak,
damage will 1-Be greater in the steam system 2-Be greater in the hot water system 3-Be about the same
in either system 4-Be minimal due to the automatic drain system
Answer: 2
Question 12: When replacing or removing an anti-friction ball bearing, the applied force should: 1-Not
be transmitted through the bearing balls 2-Always be against the inner race 3-Always be against the
outer race 4-Be made only after heating the bearing
Answer: 1
Question 13: When replacing or removing an anti-friction ball bearing, the applied force should: 1-Not
be transmitted through the bearing balls 2-Always be against the inner race 3-Always be against the
outer race 4-Be made only after heating the bearing
Answer: 1
Question 14: When operating the soot blowers for internal inspection, what should the load of the
boiler be at? 1-100% 2-Below 175 kPa 3-Adjusted as required by the plant 4-Above 50%
Answer: 4
Question 15: The final step when replacing a firetube is: 1-Re-expansion 2-Hydrostatic test 3-Seal
welding 4-Annealing the tube ends
Answer: 2
Question 16: Turbine lubricating oil: 1-Contaminates the exhaust steam 2-Must mix well with water
3-Can be used to operate the turbine governor 4-Lubricates the labyrinth gland
Answer: 3
Page 2
, Question 17: What is a disadvantage of a hot water heating system compared to a steam system?
1Effective water temperature buffering 2-Smaller boiler 3-Larger than average maintenance cost
4-More costly
Answer: 4
Question 18: Tubular gauge glasses: 1-Are suitable for pressures up to about 3000 kPa 2-Are made of
glass, in order to resistant boiler alkalinity 3-Indicate the level more accurately than other forms of
water level indication 4-Can only be installed on low-pressure boilers
Answer: 1
Question 19: What is a disadvantage of a hot water heating system compared to a steam system?
1-Effective water temperature buffering 2-Smaller boiler 3- Larger than average maintenance cost
4-More costly
Answer: 4
Question 20: With respect to steam trap installations, which of the following statements is FALSE?
1-Choose a steam trap based on the pressure difference across the trap, and a minimum capacity
corresponding to three times the coil condensate rate. 2-Locate the steam trap so that its outlet is at
least 30 cm above the coil condensate outlet. 3-Trap each steam coil separately. 4-Drip the steam supply
main through a steam trap into the return condensate main, and not through the steam coil.
Answer: 2
Question 21: What type of lighting directs all or most of the luminous intensity down, toward the work
area? 1-Indirect 2-Direct 3-Redirect 4-Incandescent
Answer: 2
Question 22: A high water level in a boiler: 1-Will cause the high water cut-off to shut down the boiler
2-Is usually caused by a boiler feed pump malfunction 3-Will necessitate an immediate shutdown and
cool down 4-May cause water carryover into the header
Answer: 4
Question 23: The HVAC induction system gets its name from 1-The way air in the room is mixed with
the supply air 2-The type of fan coils used 3-The type of air handling unit used
Answer: 1
Question 24: When Teflon is used as part of the mechanical seal, the maximum temperature of oil that
can be pumped by a hot oil pump is: 1-100°C 2-250°C 3-150°C 4-200°C
Answer: 4
Page 3
