A type of trim that can be used as an edging or border on an arched opening is _____
a. reveal trim
b. corner bead
c. flexible tape
d. J-bead
a
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Answer the following statement(s) true (T) or false (F)
1. A flow switch either closes or opens a set of gates. 2. Typical applications of flow switches are commonly found in the chemical and petroleum industries. 3. The insulation of the wire leading to the switches must be adequate to withstand the high pressure of the liquid inside the pipe. 4. You can consult the NEC® for insulation temperature ratings. 5. Air condition and heating circuits often use timed contacts that are self-contained and do not require a coil for operation. Their time delay is preset and cannot be adjusted.
The horsepower rating of three-phase motors and the KVA (kilo-volt-amp) rating of three-phase transformers is about ____% greater than for single-phase motors or transformers with a similar frame size.
a. 50 b. 100 c. 150 d. 200
All of the following statements about are true EXCEPT:
A. with 700F air entering the evaporator, expect about a 150F drop in air temperature (550F). B. with 800F air entering the evaporator, expect about a 250F drop in air temperature (550F). C. with 900F air entering the evaporator, expect about a 300F drop in air temperature (600F). D. the hardest work a manually controlled air conditioner has to do happens when "normal" is selected.
Draw the shear and moment curves for each member of the frame in Figure P5.24. Sketch the deflected shape.
