Small Gas Engines Ch 12 Test
18 Questions
| Attempts: 475
Choose the one best answer.
Questions and Answers
- 1.Preventive maintenance helps protect against premature engine wear.
- A.
True
- B.
False
- 2.Keeping an engine clean can help prevent _________________.
- A.
Costly repairs
- B.
Engine break down
- C.
Overheating
- D.
All of the above
- 3.Never run engine if the oil level is above full mark.
- A.
True
- B.
False
- 4.Although oil does not wear out, excess _________ make the oil useless.
- A.
Uses
- B.
Gasolines
- C.
Contaminants, dirt and oil
- 5.When changing oil, the engine should be ________.
- A.
Warm
- B.
Cold
- C.
Running
- 6.Fuel tanks should be kept full to prevent the formation of __________.
- A.
Break down
- B.
Condensation
- C.
Corrosion
- 7.Clogged mufflers can cause power loss and overheating.
- A.
True
- B.
False
- 8.All mufflers can be cleaned by soaking them in solvent.
- A.
True
- B.
False
- 9.To prevent the formation of rust and scale, a rust ____________ should be added to the water (antifreeze) in the cooling system.
- A.
Inhibitor
- B.
Acceleratant
- C.
Sample
- 10.Outboard engines operated in saltwater are exposed to _____________ conditions.
- A.
Heated
- B.
Corrosive
- C.
Fun
- 11.When storing outboard engines, all plugs should be removed from the _________ and _________ __________ housing.
- A.
Carburetor, gas line
- B.
Oil, crank shaft
- C.
Gearcase, drive shaft
- 12.Systematic troubleshooting involves looking for the ___________________ problem possibilities first.
- A.
Most difficult
- B.
Simplest
- C.
Non-obvious
- 13.In order to run properly, an engine must have proper carburetion, correct ignition system operation, adequate lubrication, sufficient cooling, and ____________________,
- A.
A new paint job
- B.
Proper compression
- C.
Clean tires
- 14.Manufacturer's service manuals contain _____________.
- A.
Service procedures
- B.
Troubleshooting charts
- C.
Tolerance and clearance specifications
- D.
All of the above
- 15.Engine rpm can be checked with a(n) ______________, which flashes a light on and off at a controlled rate.
- A.
Flashlight
- B.
Stroboscope
- C.
Heat lamp
- 16.A compression test can be used to determine the condition of the spark plug.
- A.
True
- B.
False
- 17.During a differential pressure test, air leakge heard at the crankcase breather is an indication of defective _________.
- A.
Piston rings
- B.
Gas tank
- C.
Air supply
- 18.A differential pressure test can identify and locate defective _________, __________ and _______.
- A.
Gas tank, air filter, oil filter
- B.
Crankshaft, camshaft, differential
- C.
Intake valve, exhaust valve, piston rings