Ohmmeter readings while testing a good diode should read:
In the following illustration of a battery ground post and clamp, what would be an acceptable reading when the starter is operating?
What is the advantage of putting a relay in a headlight circuit?
If resistance is doubled and the voltage remains the same:
Each resistor in a series circuit will cause a ___________drop across itself:
Parallel circuits have _________ current to flow:
The voltage drop across resistors in a basic parallel circuit will __________ the battery voltage.
Replacing a conductor with a smaller diameter conductor could result in:
Voltmeters are connected in _____________ with the voltage being measured.
Ammeters are used to measure:
Ammeters are connected in ____________ with the circuit:
Ohmmeters should be connected across a circuit carrying voltage:
An open circuit is one in which there is:
Elements that allow electrons to flow from atom are classified as:
If electrons are forced to move in a conductor__________ flow occurs:
The force needed to cause current to flow in a circuit is called ________.
Current flow can exist without voltage:
Voltage can exist without current:
When current flows through a resistance, heat is generated
Conventional theory for current flow is described as:
Diodes and transistors are made of semiconductor material:
What allows current flow in only one direction?
What controls current by acting like a switch?
Which electronic device has 3 electrical connections?
An electromagnet''s strength may be increased by:
Capacitors can be used to:
One milliampere of current flow equals:
The opposition to current flow is called:
The measure of difference between charges is called:
A technician needs to check for voltage in an electrical circuit. Technician A says a 12-volt light is used by attaching one lead to a known good voltage source, then probing various points along a circuit. Technician B says one lead of the test light should be grounded, and the other used to probe various points along a circuit. Who is right?
To paraphase Ohm''s Law, it states that:
If excessive current flows through a fuse, the metal strip melts and:'
Flow in hydraulics is measured in gallons per minute, flow in an electrical circuit is measured in:
A conductor must cut across magnetic lines of force in order to induce a voltage.
The magnitude of induced voltage depends upon:
If a particular electrical circuit has 12 volts and 2 Ohms resistance, what is the watts being used?
If a technician is measuring mega-ohms, which type of meter would be the most accurate?
If a current carrying conductor were to come in contact with the frame of a vehicle, the result would be:
16 gauge wire is smaller than 12 gauge wire.
The color coded bands around a resistor indicate:
In a step-up transformer:
Technician A says an ohmmeter can be used instead of a self-powered test light in checking continuity. Technician B says when checking continuity, a voltmeter can be used instead of a self-powered test light or ohmmeter. Who is right?
On vehicle with a 12-volt system, a switch circuit feeds a pair of 50-watt auxiliary lights. What size of fuse would be required to protect the circuit and provide a 15% cushion for surges?
A truck has experienced a charging problem. A careful technician has found loose mounting bolts and tightened them. The truck now performs well. Technician A says the problem might have been a slipping belt. Technician B says the problem might have been poor grounding of the alternator. Who is right?
Which of the following is not used when checking a circuit for continuity?
When using a voltmeter to perform a voltage drop test in a circuit, the leads should be connected in what way?
Technician A says an ammeter is used to test continually. Technician B says an ammeter indicates the amount of current flowing in a given circuit. Who is right?
The blower motor in a truck is running very slowly. An ammeter shows a low current flow. This could be caused by:
single clearance light in a circuit glows dimly. A technician connects a test light to the bulb socket terminal and the test light burns at normal brightness. What is likely to be the problem?
A non-computerized vehicle''s oil pressure warning light fails to come on, even when the engine is shut down. All of the following are possible causes of the problem EXCEPT a:
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