Calculate the minimum copper conductor size needed for a 120/240 volt electric range branch circuit. The electric range has a nameplate rating of 12kw

are maintained at uniform temperatures of 300°C and 4 cm Tem 5 cm 10cm hem 100°C,respectively. Determine the rate of heat transfer through the wall and draw the thermal circuit. Q2) A double-pipe counter flow heat exchanger is to coo! ethylene glycol (Cp-2560J/kg.°C) flowing at a rate of 3.5 kg/s from 80°C to 40C by water (Cp-4180J/kg.°C) that enters at 20°C and leaves at 55°C. The overall heat transfer coefficient based on the inner surface area of the tube is Celd water 20C Hot glycel 250W/m2.°C. Determine: 15gs (a) The rate of heat transfer. (b) The mass flow rate of water. (c) The heat transfer surface area on the inner side of the tube. Q3) A(10 m) long section of a 0.05m diameter horizontal hot water pipe passes through a large room whose temperature is 22°C. If the temperature of the outer surface of the pipe is 65°C, determine the rate of heat loss from the pipe by natural convection? The properties of air at 43.5°C is k = 0.02688 W/m.°C, u = 1.735 10 m /s, Pr = 0.7245.…

An HVAC ductwork systems is mostly likely to be equipped with a(an)?  A) sampling tube detector  B) rate of compensation detector  C)infrared flame detector D) UV flame detector

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A friend returns to the United States from Europe with a 960-W coffeemaker, designed to operate from a 240-V line. She wants to operate it at the USA-standard 120 V by using a transformer. If the secondary coil has 60 turns, what the number of turns in the primary coil? What current will the coffeemaker craw from the 120V line?

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1. A 150 X 90 X 12 mm angular section is welded to a gusset plate shown. Area of angular section is 2376 sq.mm. Fu = 550 MPa Allowable shear Fv=0.30FU Fy = 250 MPa Allowable tensile stress Ft = 0.60FY a. Determine the force P b. Determine the total length of weld using 12mm fillet weld c. Determine the value of a d. Determine the value of b

A square, single-turn wire coil L-1.11 cm on a side is placed inside a solenoid that has a circular cross section of radius r 2.83 cm, as shown in the figure below. The solenoid is 20.8 cm long and wound with 146 turns of wire. If the current in the solenoid is 2.83 A, find the flux through the coll. 3.00E-7Wb Incorrect. Tries 4/10 Previous Tries If the current in the solenoid is reduced to zero in 2.96 s, calculate the magnitude of the average induced emf in the coil. Tries 0/10 Send Feedback

Which of the following statements about task lighting is correct Select one: A. Ceiling lighting systems designed with task lighting always require more fixtures, increasing the initial cost. B. The application of task lighting is limited to ceiling fixtures and is not suitable for furniture-mounted applications. C. Task lighting can result in lower installed costs and energy bills by focusing higher light levels only where needed, with surrounding areas receiving lower-level illumination. D. Task lighting typically increases overall energy usage due to the requirement for additional lighting equipment. E. Task lighting aims to provide uniform illumination across the entire workspace, ensuring that all areas receive equal light intensity.