MQF Fuel System Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Detonation - CORRECT ANSWER One of the basic differences between the various
grades of aviation gasoline is in the amount of additive used to suppress _____________
Water - CORRECT ANSWER The most prevalent contaminant in aviation gasoline is
____________
Higher - CORRECT ANSWER Jet engine fuels have a _______________ (higher or
lower) viscosity than aviation gasoline
Low - CORRECT ANSWER Hard starting, slow warm-up, poor acceleration, and
uneven fuel distribution to the cylinders will result if the vapor pressure of the fuel is too
____________ (high or low)
Low - CORRECT ANSWER Gasoline does not vaporize easily if its vapor pressure is
too ____________ (high or low)
7 - CORRECT ANSWER Aviation gasoline is not allowed to have a Reid vapor
pressure higher than __________ psi at 100 ° F.
Higher - CORRECT ANSWER Most automotive gasoline has a _______________
(higher or lower) vapor pressure than aviation gasoline
Octane, performance - CORRECT ANSWER The antidetonation characteristics of
aviation gasoline are specified by its _______________ rating or ____________________
number
Tetraethyl lead - CORRECT ANSWER The basic fuel additive used to suppress
detonation in a reciprocating engine is ________________________
, Rubber - CORRECT ANSWER Aromatic additives are used in aviation gasoline to
increase the antidetonation characteristics of the fuel but they also cause deterioration of
_______________ parts
Jet A - CORRECT ANSWER The jet-engine fuel that is similar to kerosine is
______________ (Jet A or Jet B)
More - CORRECT ANSWER Turbine engine fuels are more susceptible to water
contamination than aviation gasoline because they are _____________ (more or less) viscous
than gasoline
Corrosion - CORRECT ANSWER Micro-organisms live in the water which condenses
and collects in the integral fuel tanks of a jet airplane. They form a scum that holds the water
against the aluminum alloy structure and cause __________________
Anti-icing - CORRECT ANSWER The additive that is put into turbine engine fuel to
kill the micro-organisms also acts as an ___________________ agent
Is not - CORRECT ANSWER In the design of a fuel system, it ____________ (is or is
not) permissible for a fuel pump to draw fuel from more than one tank at a time
Is not - CORRECT ANSWER In the design of a multiengine fuel system it
____________ (is or is not) permissible for one tank outlet to feed both engines
37.5 gph - CORRECT ANSWER If an engine supplied with a gravity fuel system
requires 25 gallons of fuel per hour for takeoff, the fuel system must be capable of supplying
_________________ gallons per hour
31.25 gph - CORRECT ANSWER If an engine supplied with a pump-fed fuel system
requires 25 gallons of fuel per hour for takeoff, the fuel system must be capable of supplying
_________________ gallons per hour
QUESTIONS AND CORRECT ANSWERS
Detonation - CORRECT ANSWER One of the basic differences between the various
grades of aviation gasoline is in the amount of additive used to suppress _____________
Water - CORRECT ANSWER The most prevalent contaminant in aviation gasoline is
____________
Higher - CORRECT ANSWER Jet engine fuels have a _______________ (higher or
lower) viscosity than aviation gasoline
Low - CORRECT ANSWER Hard starting, slow warm-up, poor acceleration, and
uneven fuel distribution to the cylinders will result if the vapor pressure of the fuel is too
____________ (high or low)
Low - CORRECT ANSWER Gasoline does not vaporize easily if its vapor pressure is
too ____________ (high or low)
7 - CORRECT ANSWER Aviation gasoline is not allowed to have a Reid vapor
pressure higher than __________ psi at 100 ° F.
Higher - CORRECT ANSWER Most automotive gasoline has a _______________
(higher or lower) vapor pressure than aviation gasoline
Octane, performance - CORRECT ANSWER The antidetonation characteristics of
aviation gasoline are specified by its _______________ rating or ____________________
number
Tetraethyl lead - CORRECT ANSWER The basic fuel additive used to suppress
detonation in a reciprocating engine is ________________________
, Rubber - CORRECT ANSWER Aromatic additives are used in aviation gasoline to
increase the antidetonation characteristics of the fuel but they also cause deterioration of
_______________ parts
Jet A - CORRECT ANSWER The jet-engine fuel that is similar to kerosine is
______________ (Jet A or Jet B)
More - CORRECT ANSWER Turbine engine fuels are more susceptible to water
contamination than aviation gasoline because they are _____________ (more or less) viscous
than gasoline
Corrosion - CORRECT ANSWER Micro-organisms live in the water which condenses
and collects in the integral fuel tanks of a jet airplane. They form a scum that holds the water
against the aluminum alloy structure and cause __________________
Anti-icing - CORRECT ANSWER The additive that is put into turbine engine fuel to
kill the micro-organisms also acts as an ___________________ agent
Is not - CORRECT ANSWER In the design of a fuel system, it ____________ (is or is
not) permissible for a fuel pump to draw fuel from more than one tank at a time
Is not - CORRECT ANSWER In the design of a multiengine fuel system it
____________ (is or is not) permissible for one tank outlet to feed both engines
37.5 gph - CORRECT ANSWER If an engine supplied with a gravity fuel system
requires 25 gallons of fuel per hour for takeoff, the fuel system must be capable of supplying
_________________ gallons per hour
31.25 gph - CORRECT ANSWER If an engine supplied with a pump-fed fuel system
requires 25 gallons of fuel per hour for takeoff, the fuel system must be capable of supplying
_________________ gallons per hour
