Sensible heat Study guides, Revision notes & Summaries

Which of the following is an example of a loss of latent heat? a. steam condenses b. water evaporates c. ice melts d. refrigerant evaporates - Answer a Heat that causes an increase in temperature is called _____ heat. a. radiant b. sensible c. latent d. convective - Answer b The saturation temperature of a refrigerant is the same as it's: a. boiling point b. freezing point c. saturation pressure d. fire point - Answer a When a liquid evaporates, it: a. gains sensible...

Stationary Engineer License Exam Prep with Complete Solutions A ______ fuse is necessary for a circuit with a load of 21,000 watts and a voltage of 220 volts. A. 100 B. 150 C. 175 D. 200 A. 100 amps. Note: V = IR Therefore I = V/R 21,000 amps /220 volts = 95 amps At 0 psig, how many BTU's are required to change 1 lb of water at 212F to steam? A. 144 B. 180 C. 970 D. 1190 C. 970 BTU 3 multiple choice options Radiation is: A. the movement of liquids or gases created by a tem...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% c (+15%)

NYC - Final RMO Exam Questions And Answers The efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a more efficient centrifugal compressor operation results from a. Raising the condenser liquid level to the maximum b. lowering the chilled water set point. c. raising the condenser head pressure d. lowering the condenser pressure - ANS Lowering the condensing pressure The heat removed from the refrigerant in a condenser is a. sensible ...

written z51 Exam Questions With verified Solutions The efficiency of the refrigerant cycle is affected by the operation of the condenser. of the following. a more efficient centrifugal compressor operation results from: - ANS Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - ANS Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw re...

NATE Air Conditioning and Heat Pump Study Questions and Answers 2023 A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. - ANSWER-+15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. - ANSWER-+25% The combined output of a heatpump and its auxiliary heat should not exceed the calcul...

HVAC BOMA 501 Study Guide Latest Update Graded A+ Dual Duct System A system in which hot air and cold air are supplied by separate ducts and mixed at each controlled space to provide the desired supply air temperature. This method consumes a great deal of energy. Muiltizone System an a/c system in which the zone control is obtained by mixing hot and cold air at the unit in response to a room thermostat Load Calulations take the sensible heat and the latent heat into consideration ...

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 - 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. - d) a form of heat transfer by waves. Steam at 100 PSI and 400 degrees Fahrenheit is a) saturated. b) wet. c) supe...

Heat which causes a change in temperature of a substance is called - Sensible Heat Heat added to a substance without a rise in temperature is called - Latent Heat Heat added to refrigerant in a vapor state after the evaporation process is called - Superheat A scroll compressor moved refrigerant by means of - Involute spirals The movement of heat by way of fluid is called - Convection The movement of heat through a solid object is called - Conduction The standard unit for measuring the quan...

CPNRE Prep What are the important functions of water? - correct answer - Transport nutrients & 02 and waste - Medium for metabolic reactions - Insulation and heat regulation - Form and Substance to body tissues - Lubrication How much does water account for in total body weight> - correct answer - Adult = 60% - Infant = 70-80% Insensible water loss - correct answer continuous, immeasurable and unnoticed water loss - ex: Perspiration, respiration Sensible water loss - correct ...