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Black Seal High Pressure Test Latest
Edition 2025. Questions & Correct
Answers. Graded A
A boiler horsepower is defined as: - ANS Evaporation of 34.5 pounds of
water
A change in temperature is an example of: - ANSSensible heat
A gradual increase in the stack temperature could indicate what condition in
a boiler? - ANSheating surface fouling
A thermal expansion feedwater regulator operates by: - ANSthe expansion
and contraction of a thermostatic element
A three-element feedwater regulator is controlled by what means? -
ANSsteam flow, feedwater flow, and drum level
According to the codes and standards adopted and incorporated by
reference of the boiler pressure vessels and refrigeration regulations,
welded repairs and any alternations made to the boilers must comply with
what? - ANSThe original Code of construction when it was built
After an adjustment of the packing gland on a valve that had a minor
packing leak, the operator attempts to operate the valve but finds it stuck.
1
, 2
What is the most probable cause? - ANSThe operator overtightened the
packing, causing the stem to bind.
Air receivers must conform to what ASME Code - ANSSection VIII
Any person found performing the duties of a license and holding an expired
license, shall be subject to what type of penalty? - ANSThey shall be
subject to a min penalty of $500 up to a max of $5,000 per day.
Boiler manways and handholes are oval for what reason? - ANSfor removal
from the pressure vessel
By ASME code, water column connections must be a minimum of: - ANS1
inch
By N.J.A.C. 12:90 rules, what is the minimum thickness allowed for
atmospheric type blowdown tank? - ANS5/16 inch
Describe the design of a firetube boiler - ANSFire inside the tubes,
surrounded by water
Describe thermal expansion - ANSThe tendency of matter to change in
volume in response to a change in temperature
Furnace explosions can best be avoided by: - ANSpurging the furnace after
any flame interruption
2
Black Seal High Pressure Test Latest
Edition 2025. Questions & Correct
Answers. Graded A
A boiler horsepower is defined as: - ANS Evaporation of 34.5 pounds of
water
A change in temperature is an example of: - ANSSensible heat
A gradual increase in the stack temperature could indicate what condition in
a boiler? - ANSheating surface fouling
A thermal expansion feedwater regulator operates by: - ANSthe expansion
and contraction of a thermostatic element
A three-element feedwater regulator is controlled by what means? -
ANSsteam flow, feedwater flow, and drum level
According to the codes and standards adopted and incorporated by
reference of the boiler pressure vessels and refrigeration regulations,
welded repairs and any alternations made to the boilers must comply with
what? - ANSThe original Code of construction when it was built
After an adjustment of the packing gland on a valve that had a minor
packing leak, the operator attempts to operate the valve but finds it stuck.
1
, 2
What is the most probable cause? - ANSThe operator overtightened the
packing, causing the stem to bind.
Air receivers must conform to what ASME Code - ANSSection VIII
Any person found performing the duties of a license and holding an expired
license, shall be subject to what type of penalty? - ANSThey shall be
subject to a min penalty of $500 up to a max of $5,000 per day.
Boiler manways and handholes are oval for what reason? - ANSfor removal
from the pressure vessel
By ASME code, water column connections must be a minimum of: - ANS1
inch
By N.J.A.C. 12:90 rules, what is the minimum thickness allowed for
atmospheric type blowdown tank? - ANS5/16 inch
Describe the design of a firetube boiler - ANSFire inside the tubes,
surrounded by water
Describe thermal expansion - ANSThe tendency of matter to change in
volume in response to a change in temperature
Furnace explosions can best be avoided by: - ANSpurging the furnace after
any flame interruption
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