POWER ENGINEERING 4A - TEST
REVIEW 4 QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS 100%
CORRECT!!!
1. What is the usual time needed to heat a fluidized bed to ignition
temperature before coal is introduced?
Select one:
a. Two hours
b. Three hours
c. One hour
d. 30 minutes
✔✔ Answer: c. One hour
2. When welding thick materials, correct weld groove preparation helps
achieve:
Select one:
a. Faster welding
b. Proper heat treatment
c. Full penetration
d. Elimination of the root pass
✔✔ Answer: c. Full penetration
3. What describes an interrupted pilot on an automatic boiler?
Select one:
a. It ignites, proves stable, and shuts off once the main flame is established
b. It is extinguished due to a weak flame signal
c. It ignites before the main burner and remains on until the burner shuts down
d. It burns continuously like a residential furnace pilot
,✔✔ Answer: a. It ignites, proves stable, and shuts off once the main flame is
established
In a fluidized bed boiler, a gradual loss of the fluidized bed, including fuel (carbon)
particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover -ANSWER ✔✔D
The test material for a penetrant test (PT) must be:
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous -ANSWER ✔✔D
If your plant maintenance department neglects oil changes, filter replacement, and
bearing lubrication, your plant will eventually need more unscheduled
___________ maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project -ANSWER ✔✔A
,The holder of a Certificate of Competency, the classification of which authorises
him or her to act as a engineer, may sketch, construct, install, operate, repair, and
give advice on all things pertaining to any _____ in which that person is employed.
Select one:
a. Welding shop
b. Power plant
c. Fish plant
d. Hydro plant -ANSWER ✔✔B
Which of the following is a single pass boiler?
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube -ANSWER ✔✔D
Iron and steel may be magnetized by rubbing the metal with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet -ANSWER ✔✔D
The apparatus which converts current signals to pneumatic and pneumatic to
current signals is called a:
, Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter -ANSWER ✔✔C
Before a steam or air atomizing oil burner is removed from a boiler furnace, the
burner should be blown out with:
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent -ANSWER ✔✔A
Which of the following emissions is NOT considered a gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide -ANSWER ✔✔A
A thermostatic steam trap is controlled by the:
Select one:
a. Bucket, which flips when filled with condensate
b. Temperature difference between condensate and steam
REVIEW 4 QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS 100%
CORRECT!!!
1. What is the usual time needed to heat a fluidized bed to ignition
temperature before coal is introduced?
Select one:
a. Two hours
b. Three hours
c. One hour
d. 30 minutes
✔✔ Answer: c. One hour
2. When welding thick materials, correct weld groove preparation helps
achieve:
Select one:
a. Faster welding
b. Proper heat treatment
c. Full penetration
d. Elimination of the root pass
✔✔ Answer: c. Full penetration
3. What describes an interrupted pilot on an automatic boiler?
Select one:
a. It ignites, proves stable, and shuts off once the main flame is established
b. It is extinguished due to a weak flame signal
c. It ignites before the main burner and remains on until the burner shuts down
d. It burns continuously like a residential furnace pilot
,✔✔ Answer: a. It ignites, proves stable, and shuts off once the main flame is
established
In a fluidized bed boiler, a gradual loss of the fluidized bed, including fuel (carbon)
particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover -ANSWER ✔✔D
The test material for a penetrant test (PT) must be:
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous -ANSWER ✔✔D
If your plant maintenance department neglects oil changes, filter replacement, and
bearing lubrication, your plant will eventually need more unscheduled
___________ maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project -ANSWER ✔✔A
,The holder of a Certificate of Competency, the classification of which authorises
him or her to act as a engineer, may sketch, construct, install, operate, repair, and
give advice on all things pertaining to any _____ in which that person is employed.
Select one:
a. Welding shop
b. Power plant
c. Fish plant
d. Hydro plant -ANSWER ✔✔B
Which of the following is a single pass boiler?
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube -ANSWER ✔✔D
Iron and steel may be magnetized by rubbing the metal with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet -ANSWER ✔✔D
The apparatus which converts current signals to pneumatic and pneumatic to
current signals is called a:
, Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter -ANSWER ✔✔C
Before a steam or air atomizing oil burner is removed from a boiler furnace, the
burner should be blown out with:
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent -ANSWER ✔✔A
Which of the following emissions is NOT considered a gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide -ANSWER ✔✔A
A thermostatic steam trap is controlled by the:
Select one:
a. Bucket, which flips when filled with condensate
b. Temperature difference between condensate and steam
