Tractor Tech CDE 2017

Sensitive low voltage solid state electronic components can be easily damaged during diagnostic procedures when a volt-meter with too low of an impedance rating is connected in parallel to the circuit.

• True

• False

Valve overlap refers to the point of crankshaft rotation when both intake and exhaust valves are slightly open at the end of the exhaust stroke and the beginning of the intake stroke.

• True

• False

Compression ratio is defined as the ratio of the total volume of the cylinder when the piston is at bottom dead center to the cylinder volume when the piston is at top dead center.

• True

• False

Piston type hydraulic pumps have higher RPM ratings than gear and vane pumps.

• True

• False

Hydrostatic drive transmissions change the direction of ground travel simply by reversing the angle of the swash plate.

• True

• False

Planetary drives are more durable under heavy loads than the pinion type because they spread the load out over several gears.

• True

• False

As related to filter types and ratings, the higher the beta rating, the more efficient the filter is at cleaning.

• True

• False

A planetary drive can be used as a final drive on agricultural machinery.

• True

• False

The American Petroleum Institute (API) established _____.

• “S” classifications for spark ignitions engines.

• viscosity ratings (measurement of oil fluidity at specific temperature)

• 'C' classifications for combustion ignition engines.

• the maximum additives that can be added by the manufacturers.

Multiple 12-volt batteries could be connected two in a series to provide a 12-volt system, but with higher amperage.

• True

• False