Underwriters Laboratories standard 181 A covers:
A) Methods of connecting and sealing metal duct.
B) Methods of connecting and sealing ductboard.
C) Methods of connecting and sealing all types of duct.
D) Methods of connecting and sealing flexible duct.
B
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Solve the capital budgeting problem in Problem 12.21(a) using the linear programming model and a spreadsheet.
Problem 12.21
A capital-budgeting problem is defined as follows: three projects are to be evaluated at a MARR of 12.5% per year. No more than $3.0 million can be invested.
(a) Use a spreadsheet to select from the independent projects.
(b) After some study, it was determined that the life of project 3 can be increased from 5 to 8 years for the same $1 million investment; however, the estimated annual NCF would remain steady from year 5 on. Use Goal Seek to determine the NCF in year 1 and beyond for project 3 (as a bundle of one project) to have the same PW as the best bundle in part (a). All other estimates remain the same. With these new NCF and life estimates, what are the best projects for investment?
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Saturated water with a quality of 0.25 and a temperature of 300°F enters an uninsulated diffuser at a velocity of 510 ft/s. The mass flow rate is 5.2 lbm/s.
(a) If the water is to exit as saturated water vapor at a temperature of 300°F, with a velocity of 25 ft/s, determine the necessary heat transfer rate. (b) Using your model of a diffuser, determine the necessary heat transfer rates for the flow to exit as a saturated substance with qualities ranging from 0.40 to 1.0. (c) Using your model of a diffuser, determine the necessary heat transfer rates for the flow to exit as a saturated vapor at 300°F, with exit velocities ranging from 0 ft/s to 300 ft/s. Given: Water: x1 =0.25; T1 = 300°F; V1 = 510 ft/s; x2 = 1.0; T2 = 300oF; V2 = 25 ft/s;m?=5.2 lbm/s What will be an ideal response?
A SONET mux is segmented into two primary areas. One is the ________ side, the second is the ________ side
Fill in the blank(s) with correct word
The CMP sensor on a Nissan is being discussed. Technician A says the sensor is a Hall effect type. Technician B says the sensor produces a digital signal. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B