Tractor Tech Practice Flashcard 1

Front

Ohm’s Law is represented by which of the following: Volts(E) = Amperes(I) x Ohms (R), Amperes = Volts(E) / Ohms(R), Ohms = Volts(E) / Amperes(I), All of the above?

Back

All of the above

Front

Low voltage electronic connections can oxidize and corrode, causing high-resistance circuit malfunctions that can be improperly diagnosed as open-circuit malfunctions even though they are still physically connected. True or False?

Back

True

Front

Ohm’s Law is the mathematical relationship between E, I, and R, which states it will take 1 volt to push 1 Amp of current through 1 Ω of resistance.

Back

True

Front

The electrolyte in a wet-cell battery is a mixture of sulfuric acid and water, and can cause acid burns

Back

True

Front

A shorted circuit occurs when there is a break in the wire or the wire connection at a load

Back

False

Front

Gasoline contains on an average more BTU per gallon than diesel fuel.

Back

False

Front

Two gears are in mesh; Gear A has 12 teeth; Gear B has 24 teeth. When Gear A has made one complete revolution, Gear B has traveled ½ of a revolution

Back

True

Front

Hydraulic pressure is created by

Back

Resistance to flow

Front

A large “driving” gear will drive a smaller “driven” gear more slowly but with greater torque.

Back

False

Front

For efficient combustion, the air-fuel ratio (by weight) for diesel engines can go as high as 40:1

Back

True