Thirty-eight gallons of water per minute are being circulated through a water-cooled condenser. If the rise in water temperature is 8°F, what is the approximate load on the condenser?
A. 108,000 Btu/h
B. 152,000 Btu/h
C. 216,000 Btu/h
D. 180,000 Btu/h
Answer: B
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In alternators the welding current is produced on the ____.
A. brushes B. diode C. armature D. stator
PROBLEM 3.156 The composite shaft shown consists of a 5-mm-thick brass jacket (Gbrass = 39 GPa) bonded to a 40-mm-diameter steel core (Gsteel = 77.2 GPa). Knowing that the shaft is subjected to a 600 N · m torque, determine (a) the maximum shearing stress in the brass jacket, (b) the maximum shearing stress in the steel core, (c) the angle of twist of B relative to A.
Conduit clamps used to support a service raceway installed on the side of a house must be installed no more than ____________________ feet from the weatherhead and meter socket.
Fill in the blank(s) with the appropriate word(s).
The article “Influence of Penetration Rate on Penetrometer Resistance presents measures of penetration resistance for a certain fine-grained soil. Fifteen measurements, expressed as a multiple of a standard quantity, had a mean of 2.64 and a standard deviation of 1.02. Find a 95% confidence interval for the mean penetration resistance for this soil.
What will be an ideal response?