Black Seal TC 2024/2025 Exam
Comprehensive Questions and Verified
Answers | Accurate Solutions | Get it
100% Correct!! | Already Graded A+
At 0 psig, how many Btu's are necessary to change 1 pound of water at
212F into 1 pound of steam? - 🧠 ANSWER ✔✔970.3
Steam at 100psi and 400F is - 🧠 ANSWER ✔✔superheated
What is required to raise the temperature of 1 pound of water from 32F to
212F? - 🧠 ANSWER ✔✔180 Btu
A boiler horsepower is defined as - 🧠 ANSWER ✔✔evaporation of 34.5
pounds of water
One boiler horsepower is equal to how many Btu's - 🧠 ANSWER ✔✔33,472
2545 Btu hours represents - 🧠 ANSWER ✔✔1 horsepower hour
Atmospheric pressure is considered to be - 🧠 ANSWER ✔✔14.7psi
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,In a water tube boiler, the gases of combustion will pass - 🧠 ANSWER
✔✔around the tubes
What is the minimum thickness allowed for an atmospheric type blowdown
tank? - 🧠 ANSWER ✔✔5/16
Before the burner ignites, what is the minimum number of furnace volume
air changes that should be provided by the purge cycle? - 🧠 ANSWER
✔✔four
Which best describes balanced draft? - 🧠 ANSWER ✔✔forced and induced
draft fans keep the furnace below atmospheric pressure
Which formula would you use to calculate the Btu/lb. heat content of fuel
oil? - 🧠 ANSWER ✔✔17,687 + 57.7 x API at 60F
Which stack gas reading would show good combustion? - 🧠 ANSWER
✔✔low oxygen and carbon monoxide, high carbon dioxide
What ASME code denotes a high pressure power boiler? - 🧠 ANSWER
✔✔S
Where would you find a cyclone separator? - 🧠 ANSWER ✔✔in the stream
drum
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, What is the total force acting on a safety valve of a 325 psi boiler with a 2
½' diameter safety valve? - 🧠 ANSWER ✔✔1595.34
What is the overspeed trip setting on a turbine with a normal operating
speed of 1770 rpm? - 🧠 ANSWER ✔✔1947rpm
Saturated steam is defined as - 🧠 ANSWER ✔✔steam at a temperature
corresponding to its pressure
One mechanical horsepower is equal to - 🧠 ANSWER ✔✔33000ft lb/min
Why are boiler manways and handholes oval? - 🧠 ANSWER ✔✔for removal
from pressure vessels
Shrouds are found on what piece of auxiliary equipment? - 🧠 ANSWER
✔✔steam turbines
Where is caustic embrittlement most likely to occur? - 🧠 ANSWER ✔✔on a
riveted joint below the water line
What two elements in fuel oil produce most of its heat? - 🧠 ANSWER
✔✔carbon and hydrogen
What is the heating surface of water tube with a diameter of 3 ½" and 20 ft
long? - 🧠 ANSWER ✔✔18.32ftsq
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
Comprehensive Questions and Verified
Answers | Accurate Solutions | Get it
100% Correct!! | Already Graded A+
At 0 psig, how many Btu's are necessary to change 1 pound of water at
212F into 1 pound of steam? - 🧠 ANSWER ✔✔970.3
Steam at 100psi and 400F is - 🧠 ANSWER ✔✔superheated
What is required to raise the temperature of 1 pound of water from 32F to
212F? - 🧠 ANSWER ✔✔180 Btu
A boiler horsepower is defined as - 🧠 ANSWER ✔✔evaporation of 34.5
pounds of water
One boiler horsepower is equal to how many Btu's - 🧠 ANSWER ✔✔33,472
2545 Btu hours represents - 🧠 ANSWER ✔✔1 horsepower hour
Atmospheric pressure is considered to be - 🧠 ANSWER ✔✔14.7psi
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,In a water tube boiler, the gases of combustion will pass - 🧠 ANSWER
✔✔around the tubes
What is the minimum thickness allowed for an atmospheric type blowdown
tank? - 🧠 ANSWER ✔✔5/16
Before the burner ignites, what is the minimum number of furnace volume
air changes that should be provided by the purge cycle? - 🧠 ANSWER
✔✔four
Which best describes balanced draft? - 🧠 ANSWER ✔✔forced and induced
draft fans keep the furnace below atmospheric pressure
Which formula would you use to calculate the Btu/lb. heat content of fuel
oil? - 🧠 ANSWER ✔✔17,687 + 57.7 x API at 60F
Which stack gas reading would show good combustion? - 🧠 ANSWER
✔✔low oxygen and carbon monoxide, high carbon dioxide
What ASME code denotes a high pressure power boiler? - 🧠 ANSWER
✔✔S
Where would you find a cyclone separator? - 🧠 ANSWER ✔✔in the stream
drum
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, What is the total force acting on a safety valve of a 325 psi boiler with a 2
½' diameter safety valve? - 🧠 ANSWER ✔✔1595.34
What is the overspeed trip setting on a turbine with a normal operating
speed of 1770 rpm? - 🧠 ANSWER ✔✔1947rpm
Saturated steam is defined as - 🧠 ANSWER ✔✔steam at a temperature
corresponding to its pressure
One mechanical horsepower is equal to - 🧠 ANSWER ✔✔33000ft lb/min
Why are boiler manways and handholes oval? - 🧠 ANSWER ✔✔for removal
from pressure vessels
Shrouds are found on what piece of auxiliary equipment? - 🧠 ANSWER
✔✔steam turbines
Where is caustic embrittlement most likely to occur? - 🧠 ANSWER ✔✔on a
riveted joint below the water line
What two elements in fuel oil produce most of its heat? - 🧠 ANSWER
✔✔carbon and hydrogen
What is the heating surface of water tube with a diameter of 3 ½" and 20 ft
long? - 🧠 ANSWER ✔✔18.32ftsq
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
