Triacs operate mostly in quadrant(s)
A) 1. B) 4. C) 3. D) 2. E) A and C
E
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What should you do if discover a valve with extreme blockage?
A. Contact a supervisor. B. Use a rod-out tool to clear the blockage. C. Contact the maintenance department. D. Remove the valve and its associated piping from service.
The turbine output is nearest:
Refer to the Rankine cycle with temperatures and pressures shown. Note that m = 2 kg/s of water.
.
A) 1550 kW
B) 1600 kW
C) 1650 kW
D) 1700 kW
A consulting engineering firm’s CFO wants to purchase either Ford Explorers or Toyota 4Runners for company principals. The two models under consideration cost $30,900 for the Ford and $36,400 for the Toyota. When considering life-cycle costs, the AOC of the Explorer is expected to be $600 per year more than that of the 4Runner. The trade-in values after 3 years are estimated to be 50% of the first cost for the Explorer and 60% for the 4Runner. (a) What is the incremental ROR between the two vehicles? (b) Provided the firm’s MARR is 18% per year, which vehicle should it buy?
What will be an ideal response?
What causes flue gas condensation?
A) The flue gas is cooled below the dewpoint of the combustion gas. B) Operating the furnace during times of high relative humidity C) Water naturally condenses on metal surfaces. D) Cold air being pulled through the vent on the off cycle drops the vent temperature below the dewpoint of the surrounding air.