Unit 2 Flashcards
The type of hydraulic injector nozzle that only has one hole and creates a cone shaped spray pattern is called
Pintle
Which type of hydraulic injector nozzle uses multiple orifices set at an angle?
Hole
Which component drives the pumps in a multiple plunger inline fuel injection system?
Internal camshaft
Which factor determines the amount of fuel delivered to the cylinder for combustion in a port and helix fuel injection system?
Position of the helix in relation to the port
As engine speed increases with a pressure timed (PT) fuel injection system, what the increase in pressure, fuel, and the shorter amount of time the injector opens determine?
How much fuel reaches the combustion chamber
In a Roosa Master type of distributor-type injection pump, what do the pistons follow to pressurize the fuel?
Cam ring
Which fuel line do you open when bleeding and priming a diesel fuel system?
The one at the highest point
A helpful step when bleeding and priming a diesel fuel system is to
make sure the fuel filters and strainers are full of fuel
Which item(s) is visually inspected on a fuel injection pump?
Security of lines and mounting bolts
As a safety precaution why must you limit your exposure to diesel fuel?
Fuel is a carcinogen and may cause cancer
Why is it important to mark the wires when replacing a fuel level sending unit?
So you can reinstall the sending unit correctly
Identify the possible cause(s) for excessive black engine smoke
Improper fuel or defective injector
What would be the corrective action if a generator has improper or contaminated fuel?
Drain the fuel and replace with proper fuel
Which electronic governor component uses a back and forth movement of a magnetic field to induce alternating current (AC) voltage in the coil?
Magnetic pickup (MPU)
Which electronic governor component is the brain of the governor?
Electronic control unit (ECU)
