What purpose do thermostatic traps on each radiator of a steam heating system serve?

Q: A well-insulated and perfectly sealed room is installed with 4-hp fan to circulate air for 1.5…

A:

Q: What are the two basic types of fans used in air pollution control devices?

A: The two main types of fans that are used in air pollution control devices are given as, Centrifugal…

Q: Which types of pollutants are collected using scrubbers?

A: Scrubbers are defined as the instruments that are used to remove pollution from the environment.…

Q: Which pollutants does smoke from a cigarette contain?

A: Solution: The chemicals that are present in the smoke which causes air pollution through smoking are…

Q: Write a short note on formaldehyde as an indoor pollutant?

A: Formaldehyde is a naturally occurring substance with formula CH2O. It is a colorless gas with a…

Q: Given inside and outside design temperature, 5°C, 23°C, respectively. The temperature of an unheated…

A: Given: The inside design temperature is 5oC. The outside design temperature is 23oC.

Q: You are an engineer, in which area of the roof would you install a solar panel?

A: Solar panels are generally installed on the roof. The service life of the solar panels is 20-25…

Q: What kinds of organic cellular materials are used for insulation?

A: Organic cellular material used for insulation are: 1. Polyurethane. 2. Polystyrene. 3. Cork. 4.…

Q: What is a major source of information about thermal conditions necessary for human comfort?

A: The thermal conditions affect the human comfort to a greater extent, hence its necessary to consider…

Q: How can you provide for prompt extinguishment of fire?

A: There are following ways for prompt extinguishment of fire .

Q: Why is a two-pipe vacuum steam-heating system used in large buildings?

A: For the application of ventilation, air conditioning to carry the steam and to return condensation…

Q: What fuels are used to fire warm-air furnaces?

A: Solution: Warm air furnaces use blowers to move the heated air, A warm-air furnace is fired using…

Q: Explain the ventilation methods used in village houses in Oman before the year 1990.

A: The deliberate admission of external air into a place is known as ventilation. Ventilation is…

Q: The filter for a room air-conditioning unit has an area of 1,600 sq cm. Howmany square inches are…

A: given: area=1600 cm2

Q: What are the types of all-air distribution systems?

A: Solution The air distribution system is the system used to purify and supply fresh air.

Q: A house is being built. The contractor states that the cost to install electricbaseboard heat will…

A: Solution Given data The cost to install electrical dashboard heat is $2480

Q: What are the different Biological-based indoor air pollutants?

A: Due to humidity and dampness, variety of biological -based indoor air pollutants may develop.

Q: What is passive cooling of buildings? explain various passive cooling technologies with the help…

A: Passive cooling of building: Passive cooling can be an alternative cooling system of the building…

Q: What are the main disadvantages of using a heat exchanger to cool the exhaust gases?

A: The heat exchanger cools the exhaust gas by recovering the heat energy of reciprocating diesel, gas…

Q: Discuss the systems and equipment available for cooling systems in large buildings.

A: It can be necessary to provide cooling to buildings during warm weather or where there are…

Q: What is the effect of Gas density on the efficiency of a cyclone seperator?

A: Cyclones are centrifugal separators. They transform the inertia force of gas particles to a force…

Q: If 1,350 cu ft of insulation are blown into an 1,800-sq ft attic, what is thethickness of the…

A: Given Data  Volume of insulation = 1350 ft3Area of attic = 1800 ft2

Q: Explain the following questions a and b. a) where is the first hose line stretched for a cellar…

A: (a) The first hose line stretched through the front door to the cellar stairs in an older apartment…

Q: Write a short note on Biological-based indoor air pollutants?

A: Solution: Biological contaminants air pollutants for indoor mainly includes viruses, bacteria, house…

Q: Which two nitrogen oxides are the most important air pollutants ?

A: There are various oxides of nitrogen which include Nitric Oxide (NO), Nitrogen Oxide (NO2), Nitrogen…

Q: Which of the following is not a personal action for creating a more sustainable home?   installing…

A: A sustainable home is most efficient home which is built or retrofitted in a manner that favors…

Q: How does an air-to-air heat pump produce heat?

A:

Q: Below what humidity for 95°F air will we not have to worry about sweating asthe air flows past 72°F…

A: Given:- air T=95oF=350C air flows at Dew temp Tdew=720F=22.230C To find:- humidity

Q: Perform a lighting energy audit for your classroom. First, define the spacecharacteristics by…

A: To find:- lighting energy audit

Q: The tubes going to and from an air-conditioning condensing unit must passthrough a wall. The tubes…

A: Schematic diagram of the given problem:

Q: A humidifier is designed to put 8.3 gallons of water into air flowing through anair duct every 24…

A: Given data:- The given amount of water put into the air in 24 hours, =8.3 gallons

Q: Explain the HVAC

A: HVAC  is stand for Heating, Vantilation and Air conditioning.  This system provides heating and…

Q: What is not an active means of fire protection? Choose one a. Smoke-control systems answer. b. Fire…

A: correct answer :  option -c ( INTUMESCENT PAINT)

Q: Air-conditioning units come in sizes of whole and half tons. A 1-ton airconditioningunit will cool a…

A: Given:- The size of the air-conditioning unit needed for 1100 sq ft = 1-ton  To determine:-  The…

Q: Explain the procedure of boiler water treatment?

A: Boiler water -  The liquid water that is intended for evaporation into steam in any boiler, piping…

Q: 10. How can thermal expansion damage a pipe? 11. How can freezing water damage a pipe and how does…

A: Damage of pipe due to thermal expansion: It is natural for materials to expand in the heat as well…

Q: Which type of lighting system has the highest life span?

A: The number of hours a lightbulb lasts varies based on the brand, innovation, and kind. The average…

Q: A forced convection heating system is installed in a house. The lengths of6-inch circular duct that…

A: Given:- circular duct=6 inch kitchen length=6 ft dining room = 12 ft living room =3 ft master…

Q: Write an introduction on the topic (Specific Capacity of Liquids)? to a report Heat 11:23 ص

A: In thermodynamics, the topic specific heat capacity of a substance is defined as the heat capacity…

Q: Describe the active solar heating systems. How do they function?

A: Solar energy systems convert the heat or electricity from the sun's beams. Regional construction and…

Q: An air-conditioning shop orders the following amounts of refrigerant: 125pounds of R-134a, 150…

A: The aim is to determine the total weight of the refrigerant. The different refrigerants ordered by…