Instruments that can read the pressure in a duct system include:
A) Inclined manometer, compound gauge, and U-tube manometer.
B) U-tube manometer, compound gauge, and tachometer.
C) Inclined manometer, magnehelic gauge, and digital manometer.
D) Tachometer, anemometer, and magnehelic gauge.
C
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Engineers at Specialty Manufacturing are writing a justification report to support the purchase of a DNC milling center (mill, controller, microcomputer, installation, etc.). They have learned that the total initial cost will be $90 000. The labor savings and improved product quality will result in an estimated benefit to the company of $2 400 each month over a 10-year time period. If the salvage value of the center is about $12 000 in 10 years, what annual rate of return (annual percentage) on investment did the engineers calculate? Write a computer program or use a spreadsheet if assigned by your instructor. Repeat for estimated benefits of $2 600, $2 800, $3 000, $3 200, and $3 400 per month.
What will be an ideal response?
What are the advantages of concrete?
What will be an ideal response?
The system used to measure the efficiency of room air conditioners is
A) EER - energy efficiency ratio B) CSPF - cooling seasonal performance factor C) AFUE - annual fuel utilization efficiency D) SEER - seasonal energy efficiency ratio
Carrying voice across the Internet is referred to as VoIP
Indicate whether the statement is true or false