ABSA: 4th Class Part B -Comprehensive
Exam 4 150 Multiple Choice, 4th
Class Part B , Units 1-12.
One of the legal responsibilities of the engineer during an inspection is:
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. To notify the Workers Compensation Board of the inspection
ii ii ii ii ii ii ii ii ii
b. Point out any known or suspected defects to the inspector
ii ii ii ii ii ii ii ii ii ii
c. To have at least two staff members present at all times
ii ii ii ii ii ii ii ii ii ii ii
d. To be in possession of an inspection certificate - b
ii ii ii ii ii ii ii ii ii ii ii ii
The _____ tubes of a fired hot oil heater have fins on their outer surfaces.
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Water
ii
b. Radiant
ii
c. Extended type
ii ii
d. Fire - c
ii ii ii ii ii
The injection pump of a diesel engine is driven by:
ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. A camshaft
ii ii
b. The governor
ii ii
c. The gudgeon pin
ii ii ii
d. Piston action - a
ii ii ii ii ii ii
Ammonia, as well as being toxic, is also:
ii ii ii ii ii ii ii ii
Select one: ii
a. A low pressure refrigerant
ii ii ii ii
b. Flammable
ii ii
c. Miscible with oil
ii ii ii
d. Odourless - b
ii ii ii ii ii
When a boiler primes, it means that:
ii ii ii ii ii ii ii
Select one: ii
a. The steam vent is open, to allow it to fill
ii ii ii ii ii ii ii ii ii ii
b. Water is being carried over with the steam
ii ii ii ii ii ii ii ii
c. The boiler is being over fired
ii ii ii ii ii ii
d. The water has not been chemically treated - b
ii ii ii ii ii ii ii ii ii ii ii
,The slide valve of a steam engine is designed to:
ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Allow steam to enter and leave the cylinder
ii ii ii ii ii ii ii ii
b. Prevent the engine from over-speeding
ii ii ii ii ii
c. Provide lubrication for the steam engine
ii ii ii ii ii ii
d. Drain the condensate from the cylinder during warm-up - a
ii ii ii ii ii ii ii ii ii ii ii ii
A journal bearing:
ii ii ii
Select one: ii
a. Supports a shaft
ii ii ii
b. require cooling water
ii ii ii
c. Does not require lubrication
ii ii ii ii
d. Controls thrust movement - a
ii ii ii ii ii ii ii
Smaller spark ignition engine use ____________ to vapourize gasoline:
ii ii ii ii ii ii ii ii ii
Select one: ii
a. Carburetion
ii
b. Atomization
ii
c. Electric heaters
ii ii
d. Vapourizers - a
ii ii ii ii ii
Heat load from people in a room is mostly affected by:
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. The building occupancy class
ii ii ii ii
b. The activity of the people
ii ii ii ii ii
c. The number of people
ii ii ii ii
d. The age of the people - b
ii ii ii ii ii ii ii ii ii
Testing a safety valve on a boiler by pulling the try-lever
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Ensures the valve is free to operate
ii ii ii ii ii ii ii
b. Takes approximately two seconds
ii ii ii ii
c. Ensures the closing pressure is correct
ii ii ii ii ii ii
d. Ensures the popping pressure is correct - a
ii ii ii ii ii ii ii ii ii ii
The ______________ is a type of unitary air conditioning system that uses a direct
ii ii ii ii ii ii ii ii ii ii ii ii ii ii
expansion refrigeration system to provide cooling and dehumidification, without using
ii ii ii ii ii ii ii ii ii ii
ductwork.
ii
Select one: ii
a. Rooftop unit
ii ii
, b. Window air conditioner
ii ii ii
c. Multi-zone system
ii ii
d. Unit ventilator - b
ii ii ii ii ii ii
The property of oil that indicates its ability to support a load is:
ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Viscosity
ii
b. Viscosity index
ii ii
c. Pour point
ii ii
d. Floc point - a
ii ii ii ii ii ii
The inner walls and floor of a fired heater furnace are lined with:
ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Ceramic tile
ii ii
b. Refractory
ii
c. Asbestos blocks
ii ii
d. Fiberglass insulation - b
ii ii ii ii ii ii
A collar thrust bearing:
ii ii ii ii
Select one: ii
a. Has boundary lubrication
ii ii ii
b. Is used with steam turbines only
ii ii ii ii ii ii
c. Is an anti-friction type bearing
ii ii ii ii ii
d. Can support more load than a Michell thrust bearing - a
ii ii ii ii ii ii ii ii ii ii ii ii ii
With regard to hot oil leaving the heater, the operating parameter of particular importance
ii ii ii ii ii ii ii ii ii ii ii ii ii ii
is the oil:
ii ii ii
Select one: ii
a. Viscosity
ii
b. Temperature
ii
c. Velocity
ii
d. Pressure - b
ii ii ii ii ii
Buildings require heat sources to:
ii ii ii ii ii
Select one: ii
a. Offset the building's heat losses
ii ii ii ii ii
b. Replace the exhaust air
ii ii ii ii
c. Replace the ventilation air
ii ii ii ii
d. Offset the heat gain from the atmosphere - a
ii ii ii ii ii ii ii ii ii ii ii
ii Grooving and general thinning of the condensate return system is a result of:
ii ii ii ii ii ii ii ii ii ii ii ii
Exam 4 150 Multiple Choice, 4th
Class Part B , Units 1-12.
One of the legal responsibilities of the engineer during an inspection is:
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. To notify the Workers Compensation Board of the inspection
ii ii ii ii ii ii ii ii ii
b. Point out any known or suspected defects to the inspector
ii ii ii ii ii ii ii ii ii ii
c. To have at least two staff members present at all times
ii ii ii ii ii ii ii ii ii ii ii
d. To be in possession of an inspection certificate - b
ii ii ii ii ii ii ii ii ii ii ii ii
The _____ tubes of a fired hot oil heater have fins on their outer surfaces.
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Water
ii
b. Radiant
ii
c. Extended type
ii ii
d. Fire - c
ii ii ii ii ii
The injection pump of a diesel engine is driven by:
ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. A camshaft
ii ii
b. The governor
ii ii
c. The gudgeon pin
ii ii ii
d. Piston action - a
ii ii ii ii ii ii
Ammonia, as well as being toxic, is also:
ii ii ii ii ii ii ii ii
Select one: ii
a. A low pressure refrigerant
ii ii ii ii
b. Flammable
ii ii
c. Miscible with oil
ii ii ii
d. Odourless - b
ii ii ii ii ii
When a boiler primes, it means that:
ii ii ii ii ii ii ii
Select one: ii
a. The steam vent is open, to allow it to fill
ii ii ii ii ii ii ii ii ii ii
b. Water is being carried over with the steam
ii ii ii ii ii ii ii ii
c. The boiler is being over fired
ii ii ii ii ii ii
d. The water has not been chemically treated - b
ii ii ii ii ii ii ii ii ii ii ii
,The slide valve of a steam engine is designed to:
ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Allow steam to enter and leave the cylinder
ii ii ii ii ii ii ii ii
b. Prevent the engine from over-speeding
ii ii ii ii ii
c. Provide lubrication for the steam engine
ii ii ii ii ii ii
d. Drain the condensate from the cylinder during warm-up - a
ii ii ii ii ii ii ii ii ii ii ii ii
A journal bearing:
ii ii ii
Select one: ii
a. Supports a shaft
ii ii ii
b. require cooling water
ii ii ii
c. Does not require lubrication
ii ii ii ii
d. Controls thrust movement - a
ii ii ii ii ii ii ii
Smaller spark ignition engine use ____________ to vapourize gasoline:
ii ii ii ii ii ii ii ii ii
Select one: ii
a. Carburetion
ii
b. Atomization
ii
c. Electric heaters
ii ii
d. Vapourizers - a
ii ii ii ii ii
Heat load from people in a room is mostly affected by:
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. The building occupancy class
ii ii ii ii
b. The activity of the people
ii ii ii ii ii
c. The number of people
ii ii ii ii
d. The age of the people - b
ii ii ii ii ii ii ii ii ii
Testing a safety valve on a boiler by pulling the try-lever
ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Ensures the valve is free to operate
ii ii ii ii ii ii ii
b. Takes approximately two seconds
ii ii ii ii
c. Ensures the closing pressure is correct
ii ii ii ii ii ii
d. Ensures the popping pressure is correct - a
ii ii ii ii ii ii ii ii ii ii
The ______________ is a type of unitary air conditioning system that uses a direct
ii ii ii ii ii ii ii ii ii ii ii ii ii ii
expansion refrigeration system to provide cooling and dehumidification, without using
ii ii ii ii ii ii ii ii ii ii
ductwork.
ii
Select one: ii
a. Rooftop unit
ii ii
, b. Window air conditioner
ii ii ii
c. Multi-zone system
ii ii
d. Unit ventilator - b
ii ii ii ii ii ii
The property of oil that indicates its ability to support a load is:
ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Viscosity
ii
b. Viscosity index
ii ii
c. Pour point
ii ii
d. Floc point - a
ii ii ii ii ii ii
The inner walls and floor of a fired heater furnace are lined with:
ii ii ii ii ii ii ii ii ii ii ii ii ii
Select one: ii
a. Ceramic tile
ii ii
b. Refractory
ii
c. Asbestos blocks
ii ii
d. Fiberglass insulation - b
ii ii ii ii ii ii
A collar thrust bearing:
ii ii ii ii
Select one: ii
a. Has boundary lubrication
ii ii ii
b. Is used with steam turbines only
ii ii ii ii ii ii
c. Is an anti-friction type bearing
ii ii ii ii ii
d. Can support more load than a Michell thrust bearing - a
ii ii ii ii ii ii ii ii ii ii ii ii ii
With regard to hot oil leaving the heater, the operating parameter of particular importance
ii ii ii ii ii ii ii ii ii ii ii ii ii ii
is the oil:
ii ii ii
Select one: ii
a. Viscosity
ii
b. Temperature
ii
c. Velocity
ii
d. Pressure - b
ii ii ii ii ii
Buildings require heat sources to:
ii ii ii ii ii
Select one: ii
a. Offset the building's heat losses
ii ii ii ii ii
b. Replace the exhaust air
ii ii ii ii
c. Replace the ventilation air
ii ii ii ii
d. Offset the heat gain from the atmosphere - a
ii ii ii ii ii ii ii ii ii ii ii
ii Grooving and general thinning of the condensate return system is a result of:
ii ii ii ii ii ii ii ii ii ii ii ii
