Checking the water and cleaning the radiator on tractors and other self-propelled equipment are preventive maintenance for the:

• cooling system.
• electrical system.
• fuel system.
• lubrication system.
  

Changing the oil is the main service done on a 4-cycle engine’s:

• coolant system.
• electrical system.
• exhaust system.
• lubrication system.

Two simple maintenance procedures done before starting a 4-cycle engine are:

• add antifreeze and water.
• add oil and fuel mixture.
• change spark plugs and points.
• check oil and add clean fuel.

When troubleshooting an engine that will not start, what is the first thing that should be checked?

• Fuel supply
• Piston rings
• Oil level
• Water level

One of the most necessary services required for batteries is:

• adding oil.
• adding water.
• oiling the cables.
• replacing the cables.

Checking the engine oil level is a service not necessary for:

• 2-cycle engines.
• 4-cycle engines.
• combines.
• tractors.

If an engine has fuel and compression but will not start, what is the likely problem?

• Ignition
• Oil
• Rings
• Water

If there are no problems with the fuel or the battery but the engine still will not start, what should be the next step in troubleshooting?

• Add antifreeze.
• Change the oil.
• Check the spark plugs.
• Check the valves.

What engines require that points and condenser be replaced?

• Larger
• Newer
  
• Older
• smaller

Replacement of the oil filter on a tractor engine should be done each time the:

• antifreeze is added to the tires
• coolant is added to the radiator.
• engine oil is changed in the tractor.
• tire air pressure is checked.