auto 6.

when testing a switch, which testing device would you use if the switch is removed or isolated from the circuit?

• ammeter

• ohmmeter

• jumper wire

• voltmeter

a hot wire short to ground produces _____.

• extremely high circuit resistance

• very low voltage

• extremely high current

• very low current

a resistance of one kilohm is equal to ____ ohms

• 10

• 100

• 1000

• 10,000

which testing device uses a signal generator to help locate a short

• inductive wire tracer

• multimeter

• continuity tester

• jumper wire

a digital meter that automatically selects the appropriate scales is described as ____

• calibrated

• auto ranging

• automated

• free-scaled

which of the following provides the high percentage of vehicle emissons?

• fuel vapors

• engine exhaust gases

• lean air-fuel mixtures

• engine crankcase blowby fumes

which of the following vehicle emissions is responsible for the brown color in smog?

• particulates

• carbon monoxide

• nitrogen oxides

• hydrocarbons

which of the following engine modifications listed DOES NOT help to lower exhaust emissions

• lower compression ratios

• richer air-fuel mixtures

• wider spark plug gaps

• higher operating temperatures

a catalytic converter that can reduce all three types of exhaust emissions is called a (n) ____ converter

• universal

• oxidation

• reduction

• in-line

the operating temperature of a catalytic converter is aprox. ______ F

• 1400

• 1650

• 1800

• 2270