MA 2nd CLASS FIREMAN’S PRACTICE EXAM 106 QUESTIONS WITH VERIFIED ANSWERS GRADED A+ 2024/2025
0 view 0 purchase
Course
MA 2nd CLASS FIREMAN’S
Institution
MA 2nd CLASS FIREMAN’S
MA 2nd CLASS FIREMAN’S PRACTICE EXAM 106 QUESTIONS WITH VERIFIED ANSWERS GRADED A+ 2024/2025
At 0 PSIG, how many BTU are necessary to change 1 lb of water at 212 degrees Fahrenheit into 1 lb of steam?
a) 144
b) 180
c) 970
d) 1,190 Correct Answer: c) 970
What is required to raise the t...
MA 2nd CLASS FIREMAN’S PRACTICE EXAM
106 QUESTIONS WITH VERIFIED ANSWERS
GRADED A+ 2024/2025
At 0 PSIG, how many BTU are necessary to change 1 lb of water at 212 degrees
Fahrenheit into 1 lb of steam?
a) 144
b) 180
c) 970
d) 1,190 Correct Answer: c) 970
What is required to raise the temperature of 1 lb of water from 32 degrees to 212
degrees Fahrenheit?
a) 144 Btu
b) 180 Btu
c) 970.3 Btu
d) Saturated heat Correct Answer: b) 180 Btu
Increasing the pressure has what effect on the boiling point of water?
a) No change
b) Temperature will be lowered
c) Temperature will be raised
d) Temperature will increase 2 degrees Fahrenheit for every PSI Correct Answer: c)
Temperature will be raised
Heat absorbed by water when it changes from liquid to steam at the boiling point is
called
a) sensible heat.
b) latent heat.
c) specific heat.
,d) superheat Correct Answer: b) latent heat
Heat may be transferred in how many ways?
a) One
b) Two
c) Three
d) Four Correct Answer: c) Three
A boiler horsepower is defined as
a) 970.3 Btuh.
b) total heating surface times the factor of evaporation.
c) evaporation of 34.5 lb of water from and at 212 degrees Fahrenheit per hour
d) evaporation of 34.5 lb of water from and at 212 degrees Fahrenheit per 8 hours.
Correct Answer: c) evaporation of 34.5 lb of water from and at 212 degrees Fahrenheit
per hour
A boiler's steam pressure gauge reads 150. What is the absolute pressure?
a) 14.7
b) 135.3
c) 150
d) 164.7 Correct Answer: c) 150
What does 212 degrees F equal on the Celsius scale?
a) 32
b) 100
c) 180
d) 970.3 Correct Answer: b) 100
One boiler horsepower is equal to how many Btu?
a) 970.3
b) 33,472
, c) 125,000
d) One therm Correct Answer: b) 33,472
Radiation is
a) the movement of liquids or gases created by a temperature difference.
b) the transfer of heat by direct molecular contact.
c) the weight of a substance compared to unity.
d) a form of heat transfer by waves. Correct Answer: d) a form of heat transfer by
waves.
Steam at 100 PSI and 400 degrees Fahrenheit is
a) saturated.
b) wet.
c) superheated.
d) none of the above. Correct Answer: c) superheated
Which of the following most closely defines sensible heat?
a) An established relationship comparing any substance to the heat content of water
b) Heat quantity that can be felt or measured by a thermometer.
c) Heat quantity above the point of saturation
d) Measure of heat intensity. Correct Answer: b) Heat quantity that can be felt or
measured by a thermometer
A British thermal unit is
a) the amount of heat needed to raise one pound of water one degree F
b) the amount of heat needed to raise one pound of steam one degree F
c) a unit of temperature measurement.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SavvyMind. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.
