Answer the following statement(s) true (T) or false (F)
1. Multiple Class 2 or Class 3 power supplies can be wired in parallel with each other.
2. Coaxial cable connecting a video camera to a monitor is an example of integral wiring.
3. Class 1 circuits typically operate from greater voltage and current levels than those of Class 2 or 3 circuits.
4. Class 1 circuits, that are not functionally associated, must be separated from power conductors by a solid and firmly fixed barrier.
5. Insulation requirements for Class 1 conductors 18 and 16 AWG must be suitable for 600 V.
1. F
2. F
3. T
4. T
5. T
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An uninsulated air compressor is to compress 0.10 kg/s of at from 100 kPa and 20°C to 900 kPa and 330°C. Using your compressor model, determine the power requirement for this pr°Cess for heat transfer rates ranging from -2.0 kW to -10.0 kW.
Given: P1 = 100 kPa; T1 = 20°C; T2 = 330°C; P2 = 900 kPa; m?=0.1 kg/s Air (Take State 1 as the inlet, State 2 as the outlet.) Assume: For a compressor, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?KE = ?PE = 0 What will be an ideal response?
Notation for channel shapes is depth times weight per foot times _____.
a. length b. width c. metal d. taper
Refer to the figure. Assume 2" PVC. Find c-c of L if J=8"
Fill in the blank(s) with the appropriate word(s).
A storage tank in a filling station measures 9 feet in length and 3 feet in diameter. What is the capacity of the tank to the nearest gallon?
A. 466 B. 471 C. 476 D. 481