Installation, Startup, Troubleshooting, and Maintenance D2L Flashcards
What is the maximum back pressure that an exhaust system should have?
1 PSI
Which type of anchor bolt would be best to use if it may need to be replaced?
Boxed
How large should an inertia block be, relative to the complete engine?
2.5 times the mass
If the crankshaft cannot be rotated completely to perform a web deflection check, measure the deflection at the three points, where access is unrestricted, then measure, on both sides of the connecting rod, as close to the final position as possible.
True
4-5 points of measurements on crankshaft that can’t rotate. Make sure to read questions thoroughly!
Piping should be _________ after welding, to clean out contaminants
Pickled(Acid Bath)
Name 3 situations where an initial start-up procedure should be performed.
- If the engine has been relocated
- If the engine has not been in service for an extended period of time
- If the engine has had a major overhaul
What are some problems that could be caused by a faulty exhaust rain cap being stuck open.
-Hydrostatic Lock
-Rust in the exhaust
What colour is the smoke from:
Poor A/F ratio or injection timing
Black
What colour is the smoke from;
Coolant in the cylinder
White
What colour is the smoke from;
Leaking valve guides
Blue/Grey
What would describe a misfire in an engine?
When combustion does not take place in the cylinder
The methods of cooling the engine components in a large industrial diesel engine, with a closed loop cooling system are;
- Glycol and water mixture flows through the cylinder head to cool it
- Correct fuel ratio cools the inlet valves and cylinder
- Piston rings cool the piston by transferring heat to the cylinder wall
- Oil splash or spray on the underside of the piston to cool the piston
True or False;
An oxygen sensor is commonly used to measure the oxygen content of the exhaust produced by a natural gas engine when setting up the AFR on the carburator for the first time.
True
What colour is the exhaust of a diesel engine that has not warmed up or when first started?
White
What type of engine control system is best to use when the engine is located in a hazardous environment?
Pneumatic
