It is important when wiring multisplit systems that the indoor units connect to their corresponding A, B, C, or D terminal block on the outdoor unit
Indicate whether the statement is true or false
TRUE
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?What is the area of a square that is 21.5 ft. by 10 ft.?
A. ?250 ft2 B. ?215 ft2 C. ?430 ft2 D. ?2.15 ft2
Stainless steels can be susceptible to stress corrosion cracking under certain conditions. A materials engineer is interested in determining the proportion of steel alloy failures that are due to stress corrosion cracking.
a. In the absence of preliminary data, how large a sample must be taken so as to be sure that a 98% confidence interval will specify the proportion to within ±0.05? b. In a sample of 200 failures, 30 of them were caused by stress corrosion cracking. Find a 98% confidence interval for the proportion of failures caused by stress corrosion cracking. c. Based on the data in part (b), estimate the sample size needed so that the 98% confidence interval will specify the proportion to within ±0.05.
Technician A says that a defective PCV valve could cause excessive crankcase pressure. Technician B says that a defective PCV valve could cause an oil leak. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
12.6
A) 0.126% B) 1,260% C) % D) None of these