Bearings of shop equipment ________
A) Should be lubricated regularly if possible B) Are often sealed and cannot be lubricated
C) Both A and B D) Neither A nor B
C
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Can you possibly use “orthogonal latic squares” to avoid the problem indicated in Problem below. Find out details on “orthogonal latic squares” from a Web search. Explain clearly.
How do you ensure that two adjacent piconets do not use the same frequencyhopping sequence? Explain. In Bluetooth system, hopping sequence is computed according to Bluetooth device address and clock of the master node. Since there is a large range of address space and clock range is also large, so hopping sequences in different piconets are less likely to be the same.
A semicircular-sided tank is welded in the shop. The length of the tank’s bottom, shown in the figure, is 25”, and the radius is 8”. How long is the piece of metal used to form the sides of the tank, in inches? Round the answer to the nearest 1/16”.
A company that manufactures high-strength epoxys is considering investing $100,000 in two new adhesives identified as X and Z. The investment in X is $20,000 and is expected to yield a rate of return of 40% per year. Your supervisor asked you to determine what rate of return would be required on the remaining $80,000 in order for the total return to be at least 25%. You responded that the return would have to be at least:
(a) 10.4% (b) 16.8% (c) 21.3% (d) 24.1%
When a ground ring is used as a grounding electrode, it must be at least a 2 AWG copper conductor at least __________ feet long.
a. 15 b. 20 c. 30 d. 50