An expansion tank problem may be indicated by:
A) A weeping relief valve. B) A defective mixing valve.
C) A clogged air separator. D) A low pressure problem.
A
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A supervisor should complete performance evaluations on employees for each of the following reasons except _____.
a. OSHA regulations require employers to review performance regularly b. good employees need feedback to encourage better work habits c. poorly performing crew members use the information to improve d. employees need to know how they are doing their jobs
?How is a metal's hardness reduced?
A. ?By annealing B. ?By forging C. ?Re-melting it D. ?By using a grinder to remove the hard surface
Draw a flow control loop.
What will be an ideal response?
For the arch shown in Figure P6.20, the thrust force exceeded the abutment’s lateral support capacity, which is represented by a roller at C. Load P was removed temporarily and tension rod AC was added. If the maximum compression in members AB and BC will be 750 kips, what size diameter tension rod is required? (Ignore dead load of the arch.) The allowable tensile capacity of the rod is 32 ksi. Determine the reactions.
