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4th TSSA Part B Test (II) Questions with complete Solutions!!
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4th TSSA Part B Test (II) Questions with complete Solutions!!
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Name: Score:150 Multiple choice questions
Term 1 of 150
R4B04-05-02-01 When cooling down a steam boiler that has been taken out of service, a vent
valve on a steam drum should be opened to:
Prevent a vacuum from forming in the boiler
Release excess pressure from the boiler
Introduce more steam into the boiler
Increase the temperature inside the boiler
Term 2 of 150
(4-136-1.2) Thermal conductivity (λ) is the:
The rate of heat transfer through a material
Conductive heat transfer through a unit thicknessof a single uniform type of materia
The measure of a material's resistance to heat flow
The ability of a material to conduct electricity
Term 3 of 150
(4-093-2.5) A steam boiler is regularly blown off in order to:
Clean the soot and carbon out of the firebox and tubes
Lower the operating water level in the boiler
Discharge sediment from the boiler
Removes energy from the vapour
,Term 4 of 150
What is the purpose of corrosion coupons?
They measure water flow rates
They are used to determine corrosion rates
They prevent corrosion in pipelines
They analyze soil composition
Term 5 of 150
(4-093-1.10) When installing a gauge siphon, it is important to:
First fill it with water
Install it downstream of an inspectors test connection
Keep the siphon dry
Outlet line from the heater
Term 6 of 150
Cutting steam boilers into a pressurized system is different for heating boilers and power boilers,
because
Adds load to the calculated sensible heat requirements of the conditioned space
The automatic expansion valve is usually used with multiple cooling coils connected to the
same compressor
steam heating systems may not have all the valves and drains that power boiler systems
have
shut down the boiler, close the main and pilot test firing valves, and determine the cause of
the trouble.
,Term 7 of 150
(4-093-2.11) The minimum DN size of the blowoff piping of a steam heating boiler is:
75 mm
51 mm
20 mm
15 mm
Term 8 of 150
(4-120-1.7) The accessory that maintains efficient heat transfer by collecting oil before it coats the
tubes of the condenser is called:
An oil scrubber
An adsorber
An accumulator
An oil separator
Definition 9 of 150
an indicator
(4-067-3.5) Total alkalinity is measured:
(4-075-1.8) A reciprocating air compressor works on the principle of:
(4-067-3.10) Phenolphthalein is
(4-074-4.1) Shaft misalignment during operation of a pump can be caused by bearing wear,
thermal expansion and:
, Term 10 of 150
R4B01-02-04-20 With antifriction bearings using grease, the bearings:
Are cleaned less often than oil-lubricated bearings
Require daily inspection for leaks
Are always submerged in water
Operate without any lubrication
Term 11 of 150
R4B01-02-02-07 A shell type bearing:
Is used for heavy loads
Is used for axial thrust
Is an anti-friction bearing
Consists of ball bearings in a shell
Term 12 of 150
R4B05-01-01-04 When storing a hacksaw:
the saw should be stored in a protective sheath
the blade should be removed
flip the blade, so that the cutting surfaces are not exposed to damage
release the tension on the blade
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