Fuel, Induction, Ignition and Starting Systems D2L Flashcards
What type of fuel will not detonate in the cylinder?
Diesel
True or False;
Higher octane ratings burn more slowly than lower ratings
True
True or False;
The combustion in a cylinder is timed to start a few degrees before top dead center to give the fuel time to burn and cylinder pressure to rise.
True
What conditions would cause Pre-ignition?
Hot spots in the combustion chamber
Which type of electronic fuel injection system distributes fuel into the intake manifold without interuption?
Continuous Fuel Injection
What component ensures an engine has the correct air fuel ratio?
Carburetor
True or False;
Stoichometry is the description of the ratios and amounts of two or more chemicals that are reacted together completely without any un-reacted chemicals left over.
True
Which component, in a carburetor, creates a low pressure area to draw the fuel into the air stream?
Venturi
In an engine with continuous fuel injection, which of the following components ensure the AFR is correct by measuring the composition of the exhaust gasses?
Oxygen Sensor
In a propane fuel system, which component ensures fuel flow stops when the engine stops?
Fuel Lock
Which valve closes just before the compression stroke?
Intake valve
What is the purpose of the other fuel types that are mixed with propane for powering an engine?
Allow starting at temperatures below -42°C
True or False;
Diesel engines require a lower starting RPM, compared to gas engines, because of the higher compression ratios in the diesel engine.
False
Which type of diesel injection system has a single high pressure pump?
Distributor fuel injection
What is the purpose of an air cleaner?
Clean the air entering the engine
What device can be used to measure the vacuum pressure of an intake manifold?
Manometer
What type of artificial aspiration device is powered by the exhaust from the engine?
Turbocharger
Which component of a turbo is driven by the exhaust gasses?
Turbine
If a turbo is creating too much boost pressure, what component is used to regulate the output of the turbo?
Waste gate
What components are found in the centre housing of the turbo.
Seals, oil passageways, bearings
Of the components in the ignition system, which one is used to increase the voltage to create the spark for the spark plug?
Ignition COIL
True or False;
The magnito, in an ignition system, contains the power generation section, trigger section, and distribution system.
True
True or False;
The microprocessor ignition system is sophisticated, but allows for increased power and efficiency of the engine.
True
True or False;
The pickup lead for the timing light is attached to the spark plug wire for cylinder one
True
Which type of starting system has the disadvantage of requiring a large volume of air to start the engine?
Direct Air Injection
Glow plugs and manifold heaters are used to help with starting what type of engine?
Diesel
