Why is the number 3.41 significant in figuring BTU?
A) One BTU is produced every 3.41 hours.
B) One volt equals 3.41 BTU per hour.
C) One watt produces 3.41 hp per hour.
D) One watt produces 3.41 BTU per hour.
D
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PROBLEM 2.7
A nylon thread is subjected to a 2-lb tension force. Knowing that E = 0.5 ? 106 psi and that the maximum allowable normal stress is 6 ksi, determine (a) the required diameter of the thread, (b) the corresponding percent increase in the length of the thread.
Identify the axiom or postulate that applies to the following statement. If x = AB + CD + EF + GH, then x- y = B + CD + EF + GH- y
Fill in the blank(s) with the appropriate word(s).
Which type of washer is used to provide an even clamping force?
A) Star washer B) Flat washer C) Lock washer D) None of these
Determine the Btu loss for a dining room 998 sq ft.Temperature difference is 60°F.Constant is .014.Round to a whole number.
A. 838 Btu B. 838.12 Btu C. 858 Btu D. 848 Btu