What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not continuous.)
a. 5,400VA
b. 6,750VA
c. 7,000VA
d. 7,200VA
d. 7,200VA
180VA per receptacle x 40 receptacles = 7,200VA
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A box contains three cards, labeled 1, 2, and 3. Two cards are chosen at random, with the first card being replaced before the second card is drawn. Let X represent the number on the first card, and let Y represent the number on the second card.
a. Find the joint probability mass function of X and Y.
b. Find the marginal probability mass functions 
(x) and 
(y).
c. Find 
and 
.
d. Find 
.
e. Find Cov(X, Y).
Plunger to barrel clearances are lapped in manufacture in port-helix metering injection pumps to tolerances between:
A. one half and one micron B. two and four microns C. six and eight microns D. ten and twelve microns
The degrees of crankshaft rotation in which both the intake and exhaust valves are open is called ____________________.
Fill in the blank(s) with the appropriate word(s).
The cover pass on pipe groove welds should not exceed:
A) 1/16 inches B) 1/8 inches C) Flush to pipe surface D) None of the above