ABSA: 4TH CLASS PART B - COMPREHENSIVE EXAM 1
1. Temporary hardness in feedwater is caused by:
Select one:
a. Magnesium sulphate
b. Calcium carbonate
c. Magnesium bicarbonate
d. Sodium nitrate: c
2. What is the recommended boiler water pH for wet layup?
Select one:
a. 10
b. 12
c. 7.5
d. 7: a
3. A photoelectric flame scanner:
Select one:
a. Produces a steady voltage signal
https://www.stuvia.com/user/MBoffin
, b. Requires a clear line of sight to the flame
c. conducts current through the flame
d. uses a pilot-stat: b
4. Heavy oil recovered using SAGD or CSS is properly referred to as
Select one:
a. bottoms
b. crude
c. tar
d. bitumen: d
5. Humidifying units that force warm air through a wet pad, and return the air
to the room, are called:
Select one:
a. Wetted element humidifiers
https://www.stuvia.com/user/MBoffin
, b. Pan type humidifiers with plates
c. Atomizing humidifiers
d. Bypass type humidifiers: a
6. The kind of grease used for heavily loaded machinery operating at slow
speeds is the:
Select one:
a. Sodium base grease
b. Specialty grease
c. Calcium base grease
d. Aluminum base grease: b
7. One of the advantages of gas-fired infrared heating over other types of
heating systems is:
Select one:
a. Gas-fired infrared heaters can be used as the main heating source for a large
building
b. Gas-fired infrared heaters can provide effective spot heating
c. Gas-fired infrared heaters require no fuel handling equipment
https://www.stuvia.com/user/MBoffin
, d. Gas-fired infrared heaters can heat large volume enclosures with little fuel: b
8. The normal loss of zeolite in a sodium zeolite softener is about per
year.
Select one:
a. 0.1
b. 0.15
c. 0.03
d. 0.05: c
9. A form of lubrication that requires continual motion of a shaft or surface is:
Select one:
a. Fluid film lubrication
https://www.stuvia.com/user/MBoffin
1. Temporary hardness in feedwater is caused by:
Select one:
a. Magnesium sulphate
b. Calcium carbonate
c. Magnesium bicarbonate
d. Sodium nitrate: c
2. What is the recommended boiler water pH for wet layup?
Select one:
a. 10
b. 12
c. 7.5
d. 7: a
3. A photoelectric flame scanner:
Select one:
a. Produces a steady voltage signal
https://www.stuvia.com/user/MBoffin
, b. Requires a clear line of sight to the flame
c. conducts current through the flame
d. uses a pilot-stat: b
4. Heavy oil recovered using SAGD or CSS is properly referred to as
Select one:
a. bottoms
b. crude
c. tar
d. bitumen: d
5. Humidifying units that force warm air through a wet pad, and return the air
to the room, are called:
Select one:
a. Wetted element humidifiers
https://www.stuvia.com/user/MBoffin
, b. Pan type humidifiers with plates
c. Atomizing humidifiers
d. Bypass type humidifiers: a
6. The kind of grease used for heavily loaded machinery operating at slow
speeds is the:
Select one:
a. Sodium base grease
b. Specialty grease
c. Calcium base grease
d. Aluminum base grease: b
7. One of the advantages of gas-fired infrared heating over other types of
heating systems is:
Select one:
a. Gas-fired infrared heaters can be used as the main heating source for a large
building
b. Gas-fired infrared heaters can provide effective spot heating
c. Gas-fired infrared heaters require no fuel handling equipment
https://www.stuvia.com/user/MBoffin
, d. Gas-fired infrared heaters can heat large volume enclosures with little fuel: b
8. The normal loss of zeolite in a sodium zeolite softener is about per
year.
Select one:
a. 0.1
b. 0.15
c. 0.03
d. 0.05: c
9. A form of lubrication that requires continual motion of a shaft or surface is:
Select one:
a. Fluid film lubrication
https://www.stuvia.com/user/MBoffin
