Mechanical Flashcards
On what stroke of a 4 stroke motor is the piston lubricated?
The upstrokes (compression and exhaust)
What are the strokes of a 4 stroke engine?
Intake (down)
Compression (up)
Combustion (down)
Exhaust (up)
What are the strokes of a 2 stroke engine?
Intake/compression (down)
Combustion/exhaust (up)
What is entered into the CYLINDER of a Diesel engine on the intake stroke?
Note: diesel is injected into the carburetor
Air (diesel is injected by fuel injectors on the compression stroke)
When an engine is “lugging” what will the manifold vacuum indicate?
The manifold vacuum will be less than 5 inches
How much should the drive belt deflect in between pulleys?
Approximately 1/2 inch
What is the definition of amperage?
Amperage is the amount of flow of electricity
What is the definition of voltage?
Voltage is the pressure of the electrical current
What is the definition of ohms?
Ohms is the resistance of electrical flow.
What is the purpose of a differential in a vehicle?
The differential allows for different tire speeds when making a turn
What is the degree of inclination of the kingpins?
Kingpins are set between 3-7degrees