ASME B30.10 requires that a hook be replaced if its body has been deformed _____
a. by any visually apparent bend or twist
b. 10 degrees or more
c. 15 degrees or more
d. 20 degrees or more
a
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Which of the choices identifies an important difference between the application of heavy flat sheet jacket and deep corrugated jacket on vessels and equipment?
a. Heavy flat jacket is limited to small vessels. b. Deep-corrugated jacket is only for heavy industrial applications. c. Flat jacket can be installed in any orientation; corrugated should be installed with vertical grooves. d. Deep-corrugated jacket must be cut and fabricated by custom order from a distributor. _
Joists are frequently ____-web steel joists, sometimes called bar joists.
A. strong B. light C. netted D. open
In most commercial refrigeration systems, most of the excess refrigerant that is not being used is stored in:
A) The bottom of the condenser. B) The bottom of the evaporator. C) The liquid-line filter. D) The liquid receiver.
Refer to Figure P2.79 but assume that the cantilevered beam loaded by a force F is made of steel. Strain gauges R1, R2, R3, and R4 are attached to the beam and connected in the circuit shown. The force causes a tension stress on the top of the beam that causes the length (and therefore the resistance) of R1 and R4 to increase and a compression stress on the bottom of the beam that causes the length (and therefore the resistance) of R2 and R3 to decrease. The result is a voltage vBA across nodes B and A. Determine this voltage if F = 1.3 MN and
Find:
The force applied on the beam.
Assumptions:
Gage Factor for Strain gauge is 2