A heat exchanger transfers 1,086 Btu/min to a flow of 12
gallon per minute of water. If the water flows into the heat exchanger at 54°F and removes the heat, what is the warm water outlet temperature?? (Round off to 2 decimal places.)
Fill in the blank(s) with the appropriate word(s).
64.86°F
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On the stud-weld symbol, the pitch is placed ____ of the symbol.
A. above B. below C. to the left D. to the right
Which of the following tools can be used to pull a flanged hydraulic injector nozzle from a cylinder head?
A. pry bar B. injector heal bar C. injector sleeve broach D. screwdriver
A) What is the actual work produced in the turbine, per kilogram of entering steam? B) How much heat is removed in the condenser, per kilogram of liquid produced? C) How much work is added in the pump, per kilogram of liquid? D) How much heat is added in the boiler, per kilogram of steam produced? E) How much heat is added in the superheater, per kilogram of steam? F) What is the overall efficiency of the heat engine?
A steady-state heat engine operates on the following cycle: ? A boiler is used to produce saturated steam atP=40 bar. ? That steam enters a superheater which heats it to 450 °C without changing the pressure. ? The superheated steam enters a turbine, which has an efficiency of 80%, where it expands to P=2 bar. ? The turbine effluent enters a condenser and is converted to saturated liquid at P=2 bar. ? The liquid enters a pump and is compressed to P=40 bar. ? The compressed liquid is fed to the boiler.
Identify the items that should be included in a preliminary gas furnace safety check. You may select more than one item
A) condensation and rust on vent B) ohm out blower motor windings C) no flammable liquids stored near furnace D) gas content analysis E) check TEV bulb installation F) proper combustion air G) check for gas leaks