Flashcards in Important Things to Know Deck (127)
What is the turbine called that has HP and LP section on separate shaft?
The greatest amount of steam expansion takes place in the?
On a reaction turbine the largest blades are in the?
Gas turbines have the highest pressure in the?
Emergency blowdown valves prevent?
Over Pressuring the system
what does large diameter steam blading allows for?
High Volume Of Steam
What is used to help prevent steam leakage from blade sections?
Shrouding or Shrouds
Condenser in the turbine allows steam to perform more work by reducing pressure and?
Less Back Pressure and Recycle Condensate
(Time more efficient)
S.A.V is closed by?
Is the overspeed trip mounted on the rotor shaft?
Yes, the bolt has the center of gravity slightly of center of the shaft.
What is the first step in starting a gas turbine?
Start button but always follow Manufactures Pre-startup Checks
The transition piece connects the inner lines of the power plant combustor to?
Combustion chambers to the turbine and it's duct.
What do the moving blades of the turbine consist of?
Disc or Drum Wheels
Name for stationary blades?
For expansion on turbines sliding dovetails are used?
On rotors for holding reaction blades
Spherical bearings used on turbines to?
To compensate for sag on shaft
Carbon rings are machined because they?
Fit with very close tolerance
On a gasoline carburetor how is the amount of gas delivery controlled?
(Butterfly Valve) Throttle Valve
Propane and most carbs used a?
Spray Bar or Nozzles
Excessive crankshaft deflection will most likely cause?
Broken crank or fatigue failure
What is a micron?
Millionth of a meter
What does a magneto ignition system consist of?
*Generates its own power
On a 4 stage cycle engine, intake valves opens and closes once, while the crankshaft turns how many degrees?
What is artificial respiration when dealing with stationary engines?
Air is forced in to the cylinder
What controls the collapse of the primary field of the coil on an electric ignition system?
Lacing is used in what section of the turbine?
Labyrinth seals, seal on the principal of?
You start up a piece of equipment after an overhaul you get very high vibration readings, the next step is to?
Shut it down!
If you get fluctuations readings when you first start the equipment, wait for readings to settle, this is known as?