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How does a U.P.S. (uninterruptable power supply) work? AC rectified to DC batteries then inverted to AC Batteries energy capacity is measured in Amp-hours 6 Ways to Show Appreciation for Your Child's Teacher Batteries have two rated values: Voltage and Amp-hours How do you top off water in a battery cell? Distilled water when the level is below the plates A voltage monitor relay is used for: Starting backup generators Fuel for diesel generators is often stored in a: Day tank ______...

laminar flow - Answer-- A streamline or viscous flow. - layers of water flowing over one another at different speeds with virtually no mixing between layers. - Fluid particles move in definite and observable paths or stream lines. - The flow is characteristic of viscous (thick) fluid or is one in which viscosity of the fluid plays a significant part. turbulent flow - Answer-Irregular movement of particles of the fluid. What do you use to determine quantity of air flowing through the duc...

Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because? - Answer-Increase in flow will usually increase the horsepower requirements. Net positive suction head is? - Answer-The amount of absolute pressure actually available at the suction inlet of the pump to force the liquid of the pump. The seal has just been replaced and if the pump leak slightly at start up first? - Answer-Allow the pump to continue to run for a short ...

When Starting a centrifugal pump That is part of a manifold with no check valves - Answer-You should open the suction valve, start the pump and open the discharge valve slowly Curb cock - Answer-A Valve insert it in a water line between the corporation stop and the water meter is generally called To check sheave wear - Answer-Measure each groove angle Variable pitch sheaves may be used in some cases to provide which of the following types of speech changes - Answer-Small Absolute pre...

Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because? - Answer-Increase in flow will usually increase the horsepower requirements. Net positive suction head is? - Answer-The amount of absolute pressure actually available at the suction inlet of the pump to force the liquid up the pump. If the seal has just been replaced and if the pump leaks slightly at start up, first? - Answer-Allow the pump to continue to run for a s...

How may fittings be attached to a high pressure boiler? a. threaded b. certified welds c. flanges d. any of the above - Answer-d. any of the above Which test determines the relieving capacity of safety valves? a. hydrostatic test b. accumulation test c. orsat test ration test - Answer-b. accumulation test Flue gasses can leave at high temperatures. We can recover some of this heat using a(n): a. flash tank b. open feedwater heater c. economizer d. air compressor - Answer-c. eco...

The man whose work is considered the real beginning of the science of air-conditioning _____. - Answer-Willis Carrier Psychrometry refers to the relationship between _____ and _____. - Answer-Humidity; air The amount of moisture in the air compared to how much it can hold is _____. - Answer-Relative humidity The human bodies well being depends upon the _____. - Answer-Bodies metabolism The device used to determine the moisture content of air is the _____ - Answer-psychrometer Of t...