Steam 1
These pumps cannot be started with the discharge valve closed and must be equipped with a relief valve on the discharge line to protect the pump from excessive pressure.
What are Rotary Feedwater Pumps.
The advantages are withstanding pressures up to 2,700 psi and a capacity of 20,000 lb/hr
What is an inverted bucket steam trap
Required fall in the direction of flow for a "clean" steam system
What is 1":10'
Number of distinct cycles in a hydronic cooling cycle
What is 5
Flashing of pumped liquid into vapor bubbles and their subsequent violent collapse from the suction side to discharge side of a pump
What is cavitation
What is the critical dimension in a one-pipe counter flow system for the return riser and the Hartford Loop?
What is the "A" dimension.
Vapor steam heating systems create the vacuum condition by preventing the admittance of air at this time
What is in the "off" cycle
Two options to conduct hydrostatic testing
What is stuffing box seal and mechanical seal
Maximum of two circuits
What is a single loop system
The two basic parts of a steam system
What are the Boiler and the HTU's.
Required pitch for two pipe steam system
What is 1/2" per 20'
Radiation, conduction, and convection require this for heat transfer to occur
What is a medium between two objects.
Most important method of heat loss to control to achieve a comfort condition
What is radiation
R-value measures
What is no contact with water
Organization overseeing laws, rules, and regulations relating to boilers
What is the NBBI (National Board)
Two methods of bringing condensate back to a boiler in a one-pipe system
What is parallel flow or counter flow
Temperature is an indirect measure of what
What is the velocity of molecules
Most common inputs on a hydronic system
Where the vacuum exists on a variable vacuum steam system
What are the steam supply and the condensate return
Where water is pumped from during an emergency shutdown in a boiling water reactor
What is the Torus
Typically suspended from the ceiling to be used as a space heater`
What is a unit heater
The point of highest temperature determines what
What is the location for air separators.
Weight of HTF vertically relative to the pump
What is static head