Bakers oral powerplant questions with
verified solutions
what is the purpose of the bypass valve in the engine driven fuel pump ✔️✔️it provides a path
around the pump vanes for starting the engine, and to allow fuel to bypass the pump in case of a
failure
what is the purpose of using boost pumps in a fuel supply ✔️✔️to supply fuel to a pressure
carburetor during engine starting and in case of engine driven pump failure
what are the three general causes of vapor lock ✔️✔️low fuel pressure, high fuel temperature
and excessive fuel turbulence
turbine engine fuel pumps may be divided into what distinct system categories ✔️✔️constant
displacement and variable displacement
what category is a turbine engine driven gear-type pump ✔️✔️constant displacement
what type fuel pump can be made to vary the fuel flow at any speed ✔️✔️a variable
displacement pump
,what part of a gas turbine engine fuel system is very susceptible to the formation of ice
✔️✔️the fuel filter
how is the engine fuel system protected from ice formation ✔️✔️by use of fuel heaters
why is a micron fuel filter provided with a bypass valve as a necessary safety factor
✔️✔️because the small openings in the type filter make it very susceptible to clogging
where are fuel filters located ✔️✔️at the fuel pump, in line with the system; "last chance" filter
screens are located in the fuel controls
Can you use automotive gasoline in a reciprocating engine in place of Avgas? ✔️✔️yes,
provided you have a STC
what are the three major parts of a reciprocating engine induction system ✔️✔️the air scoop,
fuel delivery system, and intake manifold
what effect does induction system icing have on engine performance ✔️✔️can cause an engine
to act erratically and lose power, and my even quit
what method is used to prevent or remove induction system ice in a reciprocating engine
✔️✔️by the use of heated air
,how is ice cleared in some aircraft induction systems if the carburetor heat is too low to clear the
ice ✔️✔️a fluid such as alcohol, anilol or mersol is sprayed into the induction system
what engine indication can be the result of a dirty air filter ✔️✔️low power
what is the danger of using carburetor heat when operating at high power settings ✔️✔️could
cause detonation and possibly engine failure
carburetor throttle ice is most likely to form when the throttle is in which position ✔️✔️when
the throttle is in the partially closed position
what are two general classifications of superchargers used in reciprocating engines induction
systems ✔️✔️internally and externally driven
what is the purpose of a distribution impeller in a radial engine ✔️✔️it is designed to bread up
the fuel globules in to finer particles for better distribution to the cylinders
how does an internally driven supercharger get its power ✔️✔️internally driven superchargers
are mechanically engine driven. a high speed impeller is driven through a gear train from the
crankshaft. the use of gear rations can be single stage or two speed
, where does an externally driven supercharger get its power ✔️✔️by the exhaust gases that are
directed against a turbine
what unit regulates the amount of exhaust gases to the turbine of a turbocharger ✔️✔️the
waste gate
what type of power is used to control the position of the turbocharger waste gate on some
engines ✔️✔️oil pressure to an actuating piston
what can cause the waste gate to stick ✔️✔️a buildup of carbon
what is the most common means of regulating the cooling air flow through a reciprocating
engine ✔️✔️by the use of cowl flaps
what is the purpose of the fins on engine cylinders ✔️✔️to increase the surface area of the
cylinder for cooling
what other engine characteristics are designed to aid in engine cooling besides cooling fins
✔️✔️the engine cowling and baffles
verified solutions
what is the purpose of the bypass valve in the engine driven fuel pump ✔️✔️it provides a path
around the pump vanes for starting the engine, and to allow fuel to bypass the pump in case of a
failure
what is the purpose of using boost pumps in a fuel supply ✔️✔️to supply fuel to a pressure
carburetor during engine starting and in case of engine driven pump failure
what are the three general causes of vapor lock ✔️✔️low fuel pressure, high fuel temperature
and excessive fuel turbulence
turbine engine fuel pumps may be divided into what distinct system categories ✔️✔️constant
displacement and variable displacement
what category is a turbine engine driven gear-type pump ✔️✔️constant displacement
what type fuel pump can be made to vary the fuel flow at any speed ✔️✔️a variable
displacement pump
,what part of a gas turbine engine fuel system is very susceptible to the formation of ice
✔️✔️the fuel filter
how is the engine fuel system protected from ice formation ✔️✔️by use of fuel heaters
why is a micron fuel filter provided with a bypass valve as a necessary safety factor
✔️✔️because the small openings in the type filter make it very susceptible to clogging
where are fuel filters located ✔️✔️at the fuel pump, in line with the system; "last chance" filter
screens are located in the fuel controls
Can you use automotive gasoline in a reciprocating engine in place of Avgas? ✔️✔️yes,
provided you have a STC
what are the three major parts of a reciprocating engine induction system ✔️✔️the air scoop,
fuel delivery system, and intake manifold
what effect does induction system icing have on engine performance ✔️✔️can cause an engine
to act erratically and lose power, and my even quit
what method is used to prevent or remove induction system ice in a reciprocating engine
✔️✔️by the use of heated air
,how is ice cleared in some aircraft induction systems if the carburetor heat is too low to clear the
ice ✔️✔️a fluid such as alcohol, anilol or mersol is sprayed into the induction system
what engine indication can be the result of a dirty air filter ✔️✔️low power
what is the danger of using carburetor heat when operating at high power settings ✔️✔️could
cause detonation and possibly engine failure
carburetor throttle ice is most likely to form when the throttle is in which position ✔️✔️when
the throttle is in the partially closed position
what are two general classifications of superchargers used in reciprocating engines induction
systems ✔️✔️internally and externally driven
what is the purpose of a distribution impeller in a radial engine ✔️✔️it is designed to bread up
the fuel globules in to finer particles for better distribution to the cylinders
how does an internally driven supercharger get its power ✔️✔️internally driven superchargers
are mechanically engine driven. a high speed impeller is driven through a gear train from the
crankshaft. the use of gear rations can be single stage or two speed
, where does an externally driven supercharger get its power ✔️✔️by the exhaust gases that are
directed against a turbine
what unit regulates the amount of exhaust gases to the turbine of a turbocharger ✔️✔️the
waste gate
what type of power is used to control the position of the turbocharger waste gate on some
engines ✔️✔️oil pressure to an actuating piston
what can cause the waste gate to stick ✔️✔️a buildup of carbon
what is the most common means of regulating the cooling air flow through a reciprocating
engine ✔️✔️by the use of cowl flaps
what is the purpose of the fins on engine cylinders ✔️✔️to increase the surface area of the
cylinder for cooling
what other engine characteristics are designed to aid in engine cooling besides cooling fins
✔️✔️the engine cowling and baffles
