How does an open piping system differ from a closed type piping system?
What will be an ideal response?
An open system has some part of the circuit open to the atmosphere such as a cooling tower pump water circuit. In a closed system all piping is in series with the pump, such as in a circulating hot water heating system.
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_____ is an inert, lightweight, granular insulating material manufactured by expanding an aluminum magnesium silicate mineral, which is a form of mica.
A. Perlite B. Vermiculite C. Polystyrene D. Expanded polyurethane
All of the following are used for chamfering a cylinder EXCEPT a _____.
A. ridge reamer B. diamond hone C. chamfering cone D. boring bar cutter
What is metabolism? What is the range of metabolic rate for an average man? Why are we interested in the metabolic rate of the occupants of a building when we deal with heating and air conditioning?
What will be an ideal response?
The magnitude of the ____ output is proportional to the time duration that a deviation between set point and the controlled variable exists.
A. on/off B. proportional C. integral D. derivative E. all of the above