4th TSSA Part B Test (I) UPDATED
ACTUAL Exam Questions and CORRECT
Answers
When a combustion air opening is equipped with dampers, the dampers must be - CORRECT
ANSWER - interlocked with the burner, and fully open before starting the boiler.
R4B05-03-02-02 A substance that absorbs humidity inside a boiler during dry layup is: -
CORRECT ANSWER - Activated alumina
(4-142-1.3) The high oil temperature shutdown device of an oil-fired heater senses the: -
CORRECT ANSWER - Oil temperature at the furnace outlet
R4B04-01-02-06 A boiler furnace pre-purge: - CORRECT ANSWER - must last a specific
amount of time.
R4B08-02-01-05 In a building plumbing system, the potable water pressure should not drop
below: - CORRECT ANSWER - 175 kPa
(4-066-1.13) Which of the following is an example of a dissolved solid? - CORRECT
ANSWER - Magnesium sulphate
(4-143-2.11) "Barking", as it occurs in a pulp mill, means: - CORRECT ANSWER - The
removal of bark from the logs
R4B01-02-03-09 A collar thrust bearing: - CORRECT ANSWER - Has boundary
lubrication
4B07-04-01-02 The combustion chamber of a gas turbine: - CORRECT ANSWER - is
where fuel is added to air, andburned.
,R4B01-01-02-08 All semi-solid lubricants: - CORRECT ANSWER - Are capable of
sealing out dirt and water from bearings
(4-074-2.7) Compression type packing: - CORRECT ANSWER - May be saturated with a
lubricating material
(4-059-3.4) The set pressure of a safety valve may only be adjusted by: - CORRECT
ANSWER - the safety valve manufacturer, its authorized representative, or an assembler
(4-127-1.3) Air duct velocity pressure is measured by connecting a: - CORRECT
ANSWER - Manometer to the side of a duct, with a sensing tube extending inside of the
duct directed toward the airflow
R4B05-03-03-01 When the fireside of a boiler is opened up, locations of water leakage may be
detected by: - CORRECT ANSWER - White dissolved solids left from water evaporation
As the temperature of the air drawn into a gas turbine compressor increases,
the____________________ of the gas turbine _________________. - CORRECT
ANSWER - output power, decreases
(4-066-3.6) The zeolite inside a water softener is used to: - CORRECT ANSWER -
Exchange sodium ions for calcium and magnesium ions
(4-059-1.18) What does the boiler inspector do to prevent tampering with the settings of a safety
valve? - CORRECT ANSWER - Installs a seal
(4-117-2.1) The amount of water used in an evaporative condenser is only a small percentage of
that used in a water-cooled condenser of the same capacity, because - CORRECT
ANSWER - The cooling water evaporates, removing far more heat per kilogram of system
coolant.
, R4B01-01-03-21 The resistance of a liquid to internal deformation or shear is known as: -
CORRECT ANSWER - Viscosity
Direct measurement of condensate amine can be done using: - CORRECT ANSWER -a
chromatograph or a fluorometer
(4-120-1.5) A liquid trap located in the suction line before a refrigeration compressor, which
evaporates liquid refrigerant and returns it to the compressor as a gas, is called: - CORRECT
ANSWER - An accumulator
(4-125-4.6) The dew point is the: - CORRECT ANSWER - Temperature below which
water vapour will start to condense out of the air
R4B01-01-03-13 Lubricants used for high-output steam turbines should: - CORRECT
ANSWER - Be fire resistant
(4-142-2.14) Degradation of heat transfer fluid of a hot oil system will begin to occur if: -
CORRECT ANSWER - The oil temperature is above a specified range, for an extended
period of time
Which of the following is NOT an important reason to take plant readings? - CORRECT
ANSWER - To keep operators from becoming complacent.
(4-070-5.2) Biological fouling in recirculating cooling water towers is caused by algae, _____
and bacteria growth. - CORRECT ANSWER - Fungi
(4-066-1.1) Materials which are generally larger than 2 micrometres and that are dispersed
throughout the water, are called: - CORRECT ANSWER - Suspended matter
(4-143-1.8) The hydrocarbons in natural gas may include: - CORRECT ANSWER -
Ethane
ACTUAL Exam Questions and CORRECT
Answers
When a combustion air opening is equipped with dampers, the dampers must be - CORRECT
ANSWER - interlocked with the burner, and fully open before starting the boiler.
R4B05-03-02-02 A substance that absorbs humidity inside a boiler during dry layup is: -
CORRECT ANSWER - Activated alumina
(4-142-1.3) The high oil temperature shutdown device of an oil-fired heater senses the: -
CORRECT ANSWER - Oil temperature at the furnace outlet
R4B04-01-02-06 A boiler furnace pre-purge: - CORRECT ANSWER - must last a specific
amount of time.
R4B08-02-01-05 In a building plumbing system, the potable water pressure should not drop
below: - CORRECT ANSWER - 175 kPa
(4-066-1.13) Which of the following is an example of a dissolved solid? - CORRECT
ANSWER - Magnesium sulphate
(4-143-2.11) "Barking", as it occurs in a pulp mill, means: - CORRECT ANSWER - The
removal of bark from the logs
R4B01-02-03-09 A collar thrust bearing: - CORRECT ANSWER - Has boundary
lubrication
4B07-04-01-02 The combustion chamber of a gas turbine: - CORRECT ANSWER - is
where fuel is added to air, andburned.
,R4B01-01-02-08 All semi-solid lubricants: - CORRECT ANSWER - Are capable of
sealing out dirt and water from bearings
(4-074-2.7) Compression type packing: - CORRECT ANSWER - May be saturated with a
lubricating material
(4-059-3.4) The set pressure of a safety valve may only be adjusted by: - CORRECT
ANSWER - the safety valve manufacturer, its authorized representative, or an assembler
(4-127-1.3) Air duct velocity pressure is measured by connecting a: - CORRECT
ANSWER - Manometer to the side of a duct, with a sensing tube extending inside of the
duct directed toward the airflow
R4B05-03-03-01 When the fireside of a boiler is opened up, locations of water leakage may be
detected by: - CORRECT ANSWER - White dissolved solids left from water evaporation
As the temperature of the air drawn into a gas turbine compressor increases,
the____________________ of the gas turbine _________________. - CORRECT
ANSWER - output power, decreases
(4-066-3.6) The zeolite inside a water softener is used to: - CORRECT ANSWER -
Exchange sodium ions for calcium and magnesium ions
(4-059-1.18) What does the boiler inspector do to prevent tampering with the settings of a safety
valve? - CORRECT ANSWER - Installs a seal
(4-117-2.1) The amount of water used in an evaporative condenser is only a small percentage of
that used in a water-cooled condenser of the same capacity, because - CORRECT
ANSWER - The cooling water evaporates, removing far more heat per kilogram of system
coolant.
, R4B01-01-03-21 The resistance of a liquid to internal deformation or shear is known as: -
CORRECT ANSWER - Viscosity
Direct measurement of condensate amine can be done using: - CORRECT ANSWER -a
chromatograph or a fluorometer
(4-120-1.5) A liquid trap located in the suction line before a refrigeration compressor, which
evaporates liquid refrigerant and returns it to the compressor as a gas, is called: - CORRECT
ANSWER - An accumulator
(4-125-4.6) The dew point is the: - CORRECT ANSWER - Temperature below which
water vapour will start to condense out of the air
R4B01-01-03-13 Lubricants used for high-output steam turbines should: - CORRECT
ANSWER - Be fire resistant
(4-142-2.14) Degradation of heat transfer fluid of a hot oil system will begin to occur if: -
CORRECT ANSWER - The oil temperature is above a specified range, for an extended
period of time
Which of the following is NOT an important reason to take plant readings? - CORRECT
ANSWER - To keep operators from becoming complacent.
(4-070-5.2) Biological fouling in recirculating cooling water towers is caused by algae, _____
and bacteria growth. - CORRECT ANSWER - Fungi
(4-066-1.1) Materials which are generally larger than 2 micrometres and that are dispersed
throughout the water, are called: - CORRECT ANSWER - Suspended matter
(4-143-1.8) The hydrocarbons in natural gas may include: - CORRECT ANSWER -
Ethane
