The vapour pressure of refrigerant should be; higher than atmospheric pressure equal to atmospheric pressure could be anything O lower than atmospheric pressure

Q: Cavitation will take place if the pressure of the following fluid at any point is Select one: O a.…

A: Cavitation will take place if the pressure of the following fluid at any point (a) is less than the…

Q: Mixture of dry air and water vapour, Total pressure of 640mm of Hg, Partial pressure of water vapour…

A: GIVEN DATA - TOTAL PRESSURE P=640mm of Hg PARTIAL PRESSURE OF WATER VAPOUR Pv=15mm of Hg WE HAVE TO…

Q: Choose correct answer: In a condenser, the vacuum is found to be 2 N/cm2. The barometer reads 735…

A: Given data  Vacuum in the condenser (Pv) = 2 N/cm2 = 2*104 N/m2 barometer reading(h) = 735 mm of Hg…

Q: The center of pressure will be always acting O at the same level of the center of gravity below the…

A:

Q: pressure that is less than atmospheric pressure is called what?

A:

Q: A 1-ton HVAC unit will remove up to 12,000 Btu/h. What size unit is neededfor a house with a heat…

A: Given1 ton HVAC unit will remove heat Q1= 12000Btu/hHouse with heat load  Q2=28576Btu/h

Q: The atmospheric pressure on the surface of Mars is only 0.007 bar which is less than 1% of the…

A: Main gas in the atmosphere of mars is CO2 (Carbon dioxide). which is commonly known as a green house…

Q: Sensible heat is the heat required to A. O Change vapour into liquid B. O Change liquid into vapour…

A: Solution:   Two forms of heat energy are: 1. Sensible Heat. 2. Latent Heat.

Q: When pressure is measured relative to zero pressure line, it is called as - Select one: O a. Gauge…

A: Solution:

Q: . The variable that regulates the input and output of a manual control system for a water tank is...…

A: In a manual control system for a water tank, the system is controlled by a human operator who…

Q: What is the driving force of fluid flow? A. viscosity B. shear rate C. velocity D. direction

A: Ans: C velocity

Q: When an evaporator experiences a heat- load increase,the suction pressureA. remains constant.B.…

A: In vapor compression refrigeration system compressor, condenser, expansion tube and evaporator are…

Q: aturated R-410A at a pressure of 95 psig will change at a temperature of A. 295 F B. 29 F C. 95 F D.…

A: The refrigerant is R-410A.The pressure is

Q: Explain the concept of air pressure in terms of weight of air above some level.

A: Atmosphere is a covering of air that surrounds the earths surface. Gravity is the force acting on an…

Q: In an inclined U tube manometer, water is used, the angle between the limbs is 90° , the theoretical…

A: This problem is related to fluid mechanics. Fluid mechanics is the subject of mechanical engineering…

Q: When a u-tube (manometer) is connected to the atmosphere on one side and a pressurized tire on the…

A: It is asked to choose correct answer from given option when u-tube manometer is connected to…

Q: What is the purpose of starting with the temperature if the water lower than room temperature and…

A: When you add energy to a group of atoms, they usually travel faster and get hotter. Similarly,…

Q: For the container shown in the previous problem, how do the pressures at points A, C, D compare…

A: At the free surface f the liquid in a container there is atmospheric pressure.But for the other…

Q: used to express the difference between the pressure recorded and the local atmospheric pressure a.…

A: Absolute pressure: The pressure that measures relative to the zero pressure in air-free space (like…

Q: Describe a cup of hot coffee does not get hotter in a cooler room.

A: According to the law of thermodynamics, the heat is always flows from higher temperature to the…

Q: Draw a fully detailed pressure volume and temperature diagram to indicate work done area

A:

Q: TRUE OR FALSE: The pressure variation from any point to another will be determined by applying…

A: given;  The pressure variation from any point to another will be determined by applying Newton’s…

Q: What is/are used to refer to the difference in pressure levels between two (unknown) pressure…

A: What is/are used to refer to the difference in pressure levels between two (unknown) pressure…

Q: The bulk modulus of fluid (K) equals: Select one: O a. PV/AV O b. VAV/AP O c. None of all O d.…

A: Bulk modulus (K) : It  is defined as the relative change in the volume of a body produced by a unit…

Q: The operation of refrigerant flow control device depends on one of the following O a. velocity…

A:

Q: What is smoke point? What happens to an oil which is heated to beyond its 'smoke point

A: Smoke point: The smoke point is the temperature at which an oil or fat starts to break down and…

Q: Search the internet and try to list as complete as possible vacuum pumps offered for sale

A:

Q: boiling in a tank at 0.01387 bars. Which of the following tank wall temperatures are possible (check…

A: Ans: B is correct.

Q: You must follow the general guideline that by drinking eight glasses of water each day to ensure…

A: B. False

Q: If the mass flow is 5 kg/s, how long will it take to fill a container with 7000 g of fluid? O a. 0.7…

A:

Q: A window is 2 feet 7 inches across. What is the largest width air conditionerin inches that will fit…

A: Write the given data. Width of window=2 feet 7 inches=2×12+7Width of window=31 in

Q: A liquid boils when its vapor pressure is equal to a.One atmosphere of pressure b.The gage pressure…

A: Liquid boils when it's vapour pressure equal to.

Q: Atmospheric pressure at sea level under standard conditionsis _____ inches of mercury (Hg) or _____…

A: The force per unit area that is exerted by an atmospheric column is referred to as atmospheric…

Q: select the most accurate statement Select one: a. atmospheric pressure at sea level is zero b. none…

A:

Q: If the mass flow is 5 kg/s, how long will it take to fill a container with 7000 g of fluid? O a. 0.7…

A:

Q: /hat instrument is used to measure the temperature of the water? O a. energy monitor O b. variable…

A: option [ c ] is correct because Thermometer measures the temperature of water.…

Q: For forced draft counter flow cooling tower a. fan is kept at top of cooling tower and air and water…

A: Forced draft counter flow cooling tower: The schematic for forced draft counter flow cooling tower…

Q: Which of the following is true for the relationship between gage and absolute pressures? The gage…

A: Statement   1 and 2 are correct.                          3 is incorrect

Q: Which of the following statements is true? (There are multiple answers I think) a. In the energy…

A:

Q: In order to increase the temperature of a room, ____________ A. none of the answers given B. remove…

A: Given :-  In order to increase the temperature of a room,

Q: Figure 1. A rigid leakproof vessel is completely filled with water. The water is heated fr- t = 15°C…

A:

Q: Which of the following is correct?   Select one: a. absolute pressure = gauge pressure +…

A: Statement (a) is correct Absolute pressure = gauge pressure + atmospheric pressure

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.