ABSA Part 4B Review Unit 1-9 questions with
accurate answers
"Laying up" a boiler means:
a. Preparing the boiler for a period of storage
b. Setting the boiler on its foundation
c. Dismantling the boiler for annual overhaul
d. Preparing a boiler for start up Ans✓✓✓ Preparing the boiler for a
period of storage
A boiler boil-out
a. is done with an alkaline solution.
b. must be done annually.
c. is done before curing the refractory.
d. is done at 1.5 times the maximum allowable working pressure.
Ans✓✓✓ is done with an alkaline solution.
A gas turbine must be rotated at _______ speed before ignition begins.
a. 10% of its maximum
b. 120% of its maximum
c. 20% to 30% of its maximum
d. full Ans✓✓✓ 20% to 30% of its maximum
A low fire start switch:
a. Is a type of manual over ride
,b. Ensures the purge takes place with the damper in the low-fire position
c. Acts as a pre-ignition interlock to ensure minimum damper setting
during ignition
d. Is closed when the damper is at high fire. Ans✓✓✓ Acts as a pre-
ignition interlock to ensure minimum damper setting during ignition
A material that is commonly used as a solid lubricant is:
a. Tallow
b. Lime
c. Molybdenum disulfide
d. Sodium carbonate Ans✓✓✓ Molybdenum disulfide
A pump is capable of suction lift due to:
a. Its ability to convert kinetic energy into potential energy
b. The speed at which it operates
c. Its input power
d. Atmospheric pressure Ans✓✓✓ Atmospheric pressure
A slight leakage is desired between the pump shaft and the packing in
order to:
a. Prevent the ingress of air
b. Prevent wearing of the wear rings
c. Lubricate the packing
, d. Prevent the pump from vapour locking Ans✓✓✓ Lubricate the
packing
A type of anti-friction bearing is the _____ .
a. Kingsbury
b. Ball bearing
c. Sleeve bearing
d. Journal bearing Ans✓✓✓ Ball bearing
An eye that is made in a rope, using the proper number and spacing of
wire rope clips, will be ____________ as strong as the rope itself.
a. 80%
b. 50%
c. 100%
d. 70% Ans✓✓✓ 80%
Another name for a lantern ring, used in a pump is:
a. Packing box
b. Packing ring
c. Rotating seal
d. Seal cage Ans✓✓✓ Seal cage
Boiler water is treated in order to:
a. prevent the water from becoming too alkaline
accurate answers
"Laying up" a boiler means:
a. Preparing the boiler for a period of storage
b. Setting the boiler on its foundation
c. Dismantling the boiler for annual overhaul
d. Preparing a boiler for start up Ans✓✓✓ Preparing the boiler for a
period of storage
A boiler boil-out
a. is done with an alkaline solution.
b. must be done annually.
c. is done before curing the refractory.
d. is done at 1.5 times the maximum allowable working pressure.
Ans✓✓✓ is done with an alkaline solution.
A gas turbine must be rotated at _______ speed before ignition begins.
a. 10% of its maximum
b. 120% of its maximum
c. 20% to 30% of its maximum
d. full Ans✓✓✓ 20% to 30% of its maximum
A low fire start switch:
a. Is a type of manual over ride
,b. Ensures the purge takes place with the damper in the low-fire position
c. Acts as a pre-ignition interlock to ensure minimum damper setting
during ignition
d. Is closed when the damper is at high fire. Ans✓✓✓ Acts as a pre-
ignition interlock to ensure minimum damper setting during ignition
A material that is commonly used as a solid lubricant is:
a. Tallow
b. Lime
c. Molybdenum disulfide
d. Sodium carbonate Ans✓✓✓ Molybdenum disulfide
A pump is capable of suction lift due to:
a. Its ability to convert kinetic energy into potential energy
b. The speed at which it operates
c. Its input power
d. Atmospheric pressure Ans✓✓✓ Atmospheric pressure
A slight leakage is desired between the pump shaft and the packing in
order to:
a. Prevent the ingress of air
b. Prevent wearing of the wear rings
c. Lubricate the packing
, d. Prevent the pump from vapour locking Ans✓✓✓ Lubricate the
packing
A type of anti-friction bearing is the _____ .
a. Kingsbury
b. Ball bearing
c. Sleeve bearing
d. Journal bearing Ans✓✓✓ Ball bearing
An eye that is made in a rope, using the proper number and spacing of
wire rope clips, will be ____________ as strong as the rope itself.
a. 80%
b. 50%
c. 100%
d. 70% Ans✓✓✓ 80%
Another name for a lantern ring, used in a pump is:
a. Packing box
b. Packing ring
c. Rotating seal
d. Seal cage Ans✓✓✓ Seal cage
Boiler water is treated in order to:
a. prevent the water from becoming too alkaline
