In a single -span mullion system for a glass curtain wall, _______.
A) one expansion anchor is provided at every alternate floor level.
B) two expansion anchors are provided at every floor level.
C) only one expansion anchor is provided for the entire height of the wall.
D) one expansion anchor is provided at every floor level.
E) two expansion anchors are provided at every alternate floor level.
C) only one expansion anchor is provided for the entire height of the wall.
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You need to cool 8.0 kg/s of superheated steam at 1000 kPa from 325oC to 200oC. You can either use R-134a that is available as a saturated liquid at 0oC, or air that is available at 15oC and 100 kPa. Due to other operational factors, the R-134a must not have an exit quality of greater than 0.60, and the air can not have an exit temperature greater than 75oC. Design a system that will meet the constraint for each substance, and comment on the relative practicality of each system.
Consider State 1 to be the steam inlet and State 2 to be the steam outlet. Consider State 3 to be the coolant inlet and State 4 to be the coolant outlet. Given: P1 = P2 = 1000 kPa; T1 = 325oC; m?s = 8.0 kg/s; T2 = 200oC Assume: Q? = 0 (insulated). Also, given no other information regarding the heat exchanger, make the following common heat exchanger assumptions: W? = ?KE = ?PE = 0 Also, assume the heat exchanger is a multiple-inlet, multiple-outlet, steady-state, steady-flow device. What will be an ideal response?
Which of the following is NOT a part of a portable belt sander?
a. gear chuck c. handles b. belt rollers d. dust bag
An active motor mount may be controlled by ________
A) Springs B) Vacuum C) Power steering fluid pressure D) None of these
How long will it take a 22 ?F capacitor to completely charge through a 1.2 M? resistor?
A) 132 s B) 13.2 s C) 2.64 s D) 0.264 s