You want to install a new air conditioning condenser in back of your house. Your neighbor's house is 40 m from the location of the condenser. The manufacturer tells you that the unit produces a sound pressure level of 85 dBA at a distance of 1 m. How loud would the unit be at the neighbor's house?

Q: A rigid, perfectly insulated system contains 0.53 m³ of Helium at 1,000 KPa. The system receives…

A: For a rigid ,perfectly insulated system:Volume =constantS0,V1=V2=0.53m3And heat interaction is…

Q: Q1/ The air circulation in a large room by using fan (10 hp). Assuming a well-insulated, sealed room…

A: Given, Large room is well-insulated. Hence, heat transfer to and from room is zero. Hence, δQ = 0.…

Q: A motorist equips his automobile tires with a relief-type valve so that the pressure inside the tire…

A:

Q: The power required to transmit 8 x 10-3 m3/s of a liquid that has a head loss of 10 m is 470 W.…

A: Given: Flow rate of the liquid is  8 x 10-3 m3/s. Head loss is 10 m . Power is 470 W.

Q: Determine the Sound Pressure Level, SPL at 20 + T meters from a speaker in a reverberant room if the…

A: Find sound pressure level (L1) R1=29m R2=7m L2=100dB

Q: The water level in a tank is 34 ft above the ground. A hose is connected to the bottom of the tank…

A: Govind

Q: 1- Each term of Bernoulli equation stated in the form ( p/pg+ v'/2g +Z) = constant has unit of e-…

A: 1. Each term in bernoulli equation is unit of meters.   Ans. mN/N   2. For pipes arranged in series…

Q: As the Airstream is cooled, the enthalpy_____ and the wet-bulb temperature____. A. Decrease,…

A: Given :-  As the Airstream is cooled, the enthalpy_____ and the wet-bulb temperature____. Select one…

Q: At high altitudes, pressure cooker is preferable for cooking because the boiling point of water (a)…

A:

Q: The pump of a water distribution system is powered by a 15-kW electric motor whose efficiency is 90…

A: Given that → Power inputW.=15 kW                    nmotor=0.9                    V.=50LS=50x10-3…

Q: A plant is located at an altitude of 2500 ft where the atmospheric pressure is 27.5 in. Hg absolute,…

A: Given data, Plant located at an altitude=2500ft Atmospheric pressure=27.5 in.Hg Hz= Open feed water…

Q: Show that the ratio of the far inlet stream tube area to the far outlet stream tube area of the wind…

A: Wind turbine is a gadget that changes over the dynamic energy of wind into electrical energy. A huge…

Q: The compressor tank that holds 80L of air during compression of pressure of 250kpa and the…

A: The gas which follows PV=mRT equation is known as Ideal Gas Equation. There are two conditions which…

Q: In a duct of uniform cross section only the dynamic pressure remain constant static pressure…

A: Correct answer: (A) only the dynamic pressure remain constant

Q: Which one of the following is a major loss? a. Entry loss b. Shock loss c. Exit loss d.…

A:

Q: in diameter. The bomb drains through a horizontal pipe 10 cm in diameter, located 3.20 m above the…

A:

Q: Q. What is the difference in pressure between points B and A? p. - 1000 Ig Gasolin SG - 0.7 Oil SG -…

A:

Q: A differential thermocouple with sensors at the inlet and exit of a pump indicates that the…

A: Given data ∆T=0.048 °FV=1.5 ft3/sec

Q: A piston cylinder arrangement initially contains 7.0 kg of super-heated steam at 100 kPa and 250 C,…

A:

Q: B. A 5-hp fan is used in a large room to provide for air circulation. Assuming a well-insulated,…

A:

Q: An orifice with a 1.8-in-diameter opening is used to measure the mass flow rate of water at 60°F (?…

A: B =d/D B= 1.8/4 = 0.45

Q: Assume an average air density of 1.2kg/m³ and take g=9.7m/sec. The basic barometer can be used to…

A:

Q: Water enters a hydraulic turbine through a 40-cm diameter pipe at a rate of 0.6 m3/s and exits…

A:

Q: Determine the combined reverberant sound level and a direct sound level received by a person 5m away…

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Q: A valve is installed in a part of the pipeline system and due to flow restriction, the pressure drop…

A:

Q: Q6: Which of the following is not a property of the system ? * O (a) Temperature O (b) Pressure O…

A:

Q: Water reservoir contains 100 tons of water at an elevation of 50 m. The maximum amount of electric…

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Q: Answer this ASAP plz Air enters a pipe with a diameter of 3 cm and a length of 17 m with a speed of…

A:

Q: A sealed tank containing seawater to a height of 12 m also contains air above the water at gage…

A: The velocity of the water leaving the tank can be calculated using the Bernoulli's theorem which is…

Q: 5. The water level in a tank is 20 m above the ground. A hose is connected to the bottom of the…

A:

Q: 2.) What is the Speed of Sound in the Reservoir? * O 447.33 m/s O 458.95 m/s O 510.21 m/s O 412.98…

A:

Q: Which of the following statements is true about an incompressible fluid moving through a horizontal…

A: It is required to choose correct answer

Q: Lane has two pipes connected to each other that transport water because he is very thirsty. The…

A:

Q: A tea maker whose top (1 point) is open to the atmosphere is completely full. The tea flows from the…

A: we will use Bernoulli's equation to solve this problem p1ρg+v122g+z1=p2ρg+v222g+z2

Q: Two electric pumps are being used to pump water to a cistern at the top of a 50 meter hill. A meter…

A: It is required to choose correct answer

Q: The flow rate of methanol at 20°C (? = 788.4 kg/m3 and ? = 5.857×10−4 kg/m·s) through a…

A: ρ = 788.4 kg/m3μ = 5.857 x 10-4 kg/m s heigh difference in manometer = 11 cm pressure difference due…

Q: In the refrigeration experiment, the following values were measured when using the TXV valve (the…

A: Given: TXV Valve Temperature at the compressor outlet = 94.7±0.5 oC Absolute pressure at the valve…

Q: The mass flow rate of air at 20°C (? = 1.204 kg/m3) through a 18-cm-diameter duct is measured with a…

A: From the above given conditionThe diameter ratio is given byβ=dDβ=618β=0.33Pressure drop across…

Q: Which of the following is incorrect about the overall energy balance and mechanical energy balance…

A: All energies entering the system equal all energies exiting the system plus the change in storage…

Q: A reservoir discharges into another reservoir via a 3.2 km long pipe that has a pipe diameter of 300…

A: We will use Bernoulli's theorem in this equation let reservoir A be at point 1 and reservoir B be at…

Q: (a) Calculate the final temperature of the air leaving the device. b) proves that the device does…

A:

Q: motorist equips his automobile tires with a relief type valve so that the pressure inside the tire…

A:

Q: A motorist equips her automobile tires with a relief type valve so that the pressure inside the tire…

A:

Q: 36 - Water flows at a speed of 0.75 m/s in a 6 cm diameter pipe. What is the mass flow rate of the…

A:

Q: A fan is to be selected to ventilate a bathroom whose dimensions are 2 m × 3 m × 3 m. The air…

A: Volume of the bathroom is v=2 m×3 m×3 m=18 m3 Volumetric flow rate through the casing is…

Electric Heating Unit

An electric heating unit, or an electric unit heater, is designed to warm up spaces and is available in various types suitable for a range of applications. The method of transforming electrical energy to heat energy is called electric heating. An electric heater converts electric currents to heat using an electrical resistor (heating element).