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WorksheetsCPL Acft Tech -Fuel injection, Super/Turbocharging, Exhaust
Total questions: 15
Worksheet time: 8mins
Advantages of a fuel injection system include which of the following? Select all options that are correct.
No refrigeration icing
Better control of fuel to air ratio
Less maintenance problems
Better throttle response
A disadvantage of a fuel injection system is...
a greater chance of fuel line blockages
over boosting
greater maintenance issues
increased wear on the carburetor
The two types of fuel injection systems are;
direct and continuous flow
direct and indirect
continuous and non-continuous flow
indirect and non-continuous flow
In a direct fuel injection system, the fuel is injected...
directly into the cylinder head
via the carburetor into the manifold valve
directly through the manifold valve
directly into the intake manifold
Select all of the parts of a fuel injection system...
injection nozzle
pump
float valve
heater
In a continuous flow fuel injection system...
fuel is injected continuously into the intake manifold
fuel is injected continuously into the cylinder heads
fuel is injected directly into the carburetor
fuel is metered according to a float valve
True or False.....
Intake icing cannot occur in a fuel injected engine.
True
False
Select the correct option below.
A supercharger is geared directly off the crankshaft
A superturbocharger (aka "turbocharger") is geared directly off the crankshaft
A supercharger is geared directly off the camshaft
A superturbocharger (aka "turbocharger") is geared directly off the camshaft
Which of the following has a 'wastegate'?
carburetor
supercharger
superturbocharger
impulse coupling
A disadvantage of a turbocharger (aka 'superturbocharger') is...
backpressure in the exhaust system reduces the efficiency of the engine
increased friction losses from gearing off the engine result in reduced engine efficiency
increased propensity for icing
critical altitude is reduced
Compared to a normally aspirated engine, a turbocharged engine
compensates for a reduction in air density as altitude is gained
uses an impulse coupling to increase air density
requires no leaning of the mixture
cannot be used in conjunction with a fuel injected engine
Super/Turbocharging is more likely to cause detonation due to...
the increase in temperature caused by compression of the fuel-air charge
the pre-ignition of the fuel-air charge before it enters the intercooler
the pre-ignition of the fuel-air charge before it enters the intake manifold
the decrease in relative humidity of the fuel-air charge caused by its expansion
The name of the engine part that collects the burnt gases expelled from the cylinders and discharges them into the airstream is the...
inlet manifold
exhaust manifold
carburetor manifold
injection manifold
Improper sealing of the exhaust manifold can lead to...
incomplete combustion
overboosting
an overly rich mixture
carbon monoxide poisoning
Select all of the correct choices below.
Carbon monoxide gas...
is odourless and tasteless
is a product of incomplete combustion
forms naturally when Oxygen and fuel combine
collects in the cylinders, causing Carbon deposits
