212 degrees f - Study guides, Class notes & Summaries
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HVAC TEST QUESTIONS AND ANSWERS | VERIFIED
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Two locations where a cold air return should be installed - open area of a wall and low to the 
ground 
Which of the following is the law of thermodynamics? - heat moves toward a place with lower 
intensity 
Sensible heat describes - how hot something feels 
Latent heat is measured in - british thermal units 
What is the amount of heat energy required to evaporate 1 pound of water? - 970 btu 
In an air conditioning system and refrigeration system, what occurs in the evaporator? - the 
refrigeran...
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RD Exam Prep: Domain 1 Topic A Questions and Answers 100% Pass
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RD Exam Prep: Domain 1 Topic A 
Questions and Answers 100% Pass 
Water - Answer- Boiling point: 212 degrees F at sea level. Drops 1 degree F for every 
500 foot increase in altitude. 
Freezing point: 32 degrees F. The addition of salt or sugar lowers the freezing point of 
water. Salt lowers the freezing point 2x as much as sugar. 
Water Activity (WA): Foods with higher WA levels are more likely to spoil. Fresh foods 
like milk, meats, and veggies have a WA level of 0.95-1.0 
Water makes these c...
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LIBERTY HIGH PRESSURE BOILERS 2024 QUESTIONS WITH CORRECT ANSWERS ALREADY PASSED AND VERIFIED
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In conduction the heat transfers through? - CORRECT ANSWER Contact 
The Transfer of heat from a fluid flowing over the surface of a body? - CORRECT ANSWER Convection 
The flow of heat through electromagnetic waves is? - CORRECT ANSWER Radiation 
A power steam boiler operates at... - CORRECT ANSWER greater than 15 psi steam, or hotwater at 160 psi, or 250 F° 
What is a super critical boiler? - CORRECT ANSWER One that operates in excess of 3206 psia or 705.4 deg...
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HESI A2 Chemistry Updated for 2024-Graded A+
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HESI A2 Chemistry Updated for 2024-Graded A+ 
scientific notation 
the scientific system of writing numbers 
-composted of 3 parts: mathematical sign, the significand, and the exponential/logarithm 
 
 
mathematical sign 
designates whether the number is positive or negative (+/-) 
 
 
significand 
the base value of the number or the value of the number when all the values of ten are removed 
 
 
exponential/logarithm 
a multiplier of the significand in powers of 10. a positive exponential multi...
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Boiler Operator Licensing
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1 or more safety valves - ANSWER all steam boilers must have 
 
Locked closed - ANSWER before anyone enters the boiler drum, the main steam stop valve, bottom blowdown valves, & feedwater valves should be 
 
212 degrees F - ANSWER at atmospheric pressure, water begins to boil at approximately 
 
Fuel oil, gas, & coal - ANSWER fuels most commonly used in boilers 
 
Steam pressure gauge - ANSWER must be connected to the highest part of the steam side of the boiler 
 
Half full - ANSWER with an NOW...
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Reta Caro Study Guide JH Exam Questions With Verified Solutions
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Reta Caro Study Guide JH Exam Questions With Verified Solutions 
Which is equal to 22 Psig? 
36.7 Psia 
 
 
What is the Latent Heat of Vaporization?(H2O) 
970 Btu's 
 
 
What product requires the most energy to lower 1 lb. by 1 degree? 
water 
 
 
What happens when pressure on a liquid is increased? 
Boiling point goes up/Saturation temp. goes up 
 
 
What happens when vapor is Superheated? 
Temperature above saturated/it gains sensible heat 0.5x1 degree F 
 
 
What causes heat to move from one...
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Reta Caro Study Guide JH Exam Questions With Verified Solutions
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Reta Caro Study Guide JH Exam Questions With Verified Solutions 
Which is equal to 22 Psig? 
36.7 Psia 
 
 
What is the Latent Heat of Vaporization?(H2O) 
970 Btu's 
 
 
What product requires the most energy to lower 1 lb. by 1 degree? 
water 
 
 
What happens when pressure on a liquid is increased? 
Boiling point goes up/Saturation temp. goes up 
 
 
What happens when vapor is Superheated? 
Temperature above saturated/it gains sensible heat 0.5x1 degree F 
 
 
What causes heat to move from one...
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MA 2nd Class Fireman's Practice Exam with complete solutions
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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 - Answer- c) 970 
 
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. - Answer- d) a form of heat transfer by waves. 
 
Steam at 100 PSI and 400 degrees Fahrenheit is 
a) saturated...
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Boiler Operator Licensing Exam Questions With Quality Answers 2024.
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1 or more safety valves - Answer all steam boilers must have 
 
Locked closed - Answer before anyone enters the boiler drum, the main steam stop valve, bottom blowdown valves, & feedwater valves should be 
 
212 degrees F - Answer at atmospheric pressure, water begins to boil at approximately 
 
Fuel oil, gas, & coal - Answer fuels most commonly used in boilers 
 
Steam pressure gauge - Answer must be connected to the highest part of the steam side of the boiler 
 
Half full - Answer ...
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HESI ENTRANCE-CHEMISTRY EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED
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HESI ENTRANCE-CHEMISTRY EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED 
 
 
The scientific system of writing numbers. 
The scientific notation is ? 
Mathematical sign 
 
Significand 
 
Exponential (logarithm). 
Scientific notation is composed of what 3 parts? 
Logarithm. 
Exponential is also called ? 
It designates whether the number is positive or negative. 
Tell me about the mathematical sign? 
The base value of the number or the value of the number when all the values of ten are removed. 
Te...
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