Rough threads in a tapped hole can be caused by:
A) Dull taps B) Insufficient lubrication
C) Chips clogging the flutes D) All of the above
D
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What safety device is designed to open quickly if the pressure of a gas in a closed space exceeds a preset limit?
A. Relief valve B. Safety valve C. Multiport valve D. Block valve
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The ____________ of a report should be a brief informative description of the report contents.
a. title b. abstract c. objectives d. appendix
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PROBLEM 3.65
Using an allowable shearing stress of 58 MPa, design a solid steel shaft to transmit 18 kW at a frequency of (a) 30 Hz, (b) 60 Hz.
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In conjunction with a pre-bid conference a ________________ may be held to give the bidding contractor information as to the actual conditions that exist where the work will be performed.