Georgia FFA Area Tractor Troubleshooting 2019

What is the main hazard when using an ether starting aid?

• damaging the piston rings

• ether is extremely flammable

• ether mixing with engine oil

• freezing the starter

Never operate the tractor starter motor continuously for more than _____. Doing so will cause the starter to overheat and could damage or ruin the starter.

• 10 seconds

• 20 seconds

• 30 seconds

• One minute

Which of the following is NOT an advantage of dual rear tractor tires?

• Dual tires used under heavy load conditions reduce the load on the transmission providing for longer transmission life.

• Dual tires give more ground contact reducing slippage.

• Operator fatigue is lessened because the ride is smoother.

• The use of duals to replace single tires of the same size increases flotation.

When a tractor becomes lodged in a hole or a ditch, one should always __________________________ in order to safely free the tractor and minimize damage.

• Pull the tractor forward by attaching a chain or strap to the front axle of the stuck tractor and the drawbar of the pulling tractor.

• Back or pull the tractor out backward to minimize stress on the front axle and prevent tip over.

• Chain blocks to the rear wheels; slowly engage the throttle until the wheels gain traction and move forward.

__________ control permits implement depth to vary with changing soil hardness, does not affect the quality of the job being done, and is often impossible to detect.

• Draft response

• Position

• Load and Depth

• Suction

__________________________ occurs when the resistance to turning is too great for the front wheels to overcome and may be corrected by applying the tractor brake on the inside of the turn as a steering aid.

• Over steering

• Under steering

• Plowing

• Power Hop

Tractor tire tread pattern produced when pulling under load provides an approximation of tire slippage. When tractor tires have the proper weight, __________________________.

• Tire tracks will be sharp and distinct with no evidence of slippage

• Tread marks will be entirely wiped out

• Tread patterns are visible and the soil between the cleats in the tread pattern will be shifted

• Tires are rigid and only the center tread will show in the pattern

Which of the following organizations is responsible for establishing engine oil viscosity indicators?

• AET

• SAE

• API

• SEA

Which of the following organizations is responsible for establishing engine oil service categories and quality specifications?

• AET

• SAE

• API

• SEA

Which of the following is the best API classification of oil for a diesel engine?

• SG

• CK-4

• SN

• CE