What is the overhang length for a rafter tail with a projection of 24" and a roof slope of 8/12?
A) 28.84" B) 24.42" C) 31.43" D) 42.57"
A
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An insulated throttling valve receives saturated liquid R-134a. The exiting flow must have a pressure of 200 kPa.
(a) Using your model of a throttling device, plot the exit quality of the R-134a as a function of inlet pressure, for pressures ranging from 250 kPa to 1000 kPa. (b) Upon exiting the throttling valve, the refrigerant is to be used in a heat exchanger. In order to assure proper operation of the heat exchanger, the quality exiting the throttling valve must be no greater than 0.25. What range of inlet pressures to the throttling valve will satisfy this design constraint? Given: P2 = 200 kPa; x1 = 0 (saturated liquid); R-134a (Take State 1 as the inlet, State 2 as the outlet.) Assume: Q?=W?=0. For a throttling valve, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?KE = ?PE = 0
Information on required start-up checks and inspection guidelines for specific mobile cranes is found in _____.
a. ANSI Standard A29.5 b. OSHA 1926, Subpart N, 1926.550 c. ANSI Standard B30.5 d. the manufacturers' manuals
Three holes are drilled in a plate as shown in the diagram below. Determine dimensions A to two decimal places.
Fill in the blank(s) with the appropriate word(s).
____________________ points for all instruments should be established to give the technician confidence.
Fill in the blank(s) with the appropriate word(s).