Electrics Recap Quiz

How does adding a resistor in series affect the total resistance in a circuit?

• a) It decreases

• b) It increases

• c) It remains the same

• d) It fluctuates

Which component in a vehicle's electrical system stores electrical energy and provides power to start the engine?

• a) Alternator

• b) Ignition coil

• c) Starter motor

• d) Battery

Which type of circuit has only one path for current to flow?

• a) Series circuit

• b) Parallel circuit

• c) Complex circuit

• d) Hybrid circuit

How can you test if a component is receiving power in an automotive electrical circuit?

• a) Measure the resistance across the component

• b) Use a multimeter to check for voltage at the component's terminals

• c) Observe the component for physical damage

• d) Smell for burnt odors near the component

When testing a fuse with a multimeter, what reading indicates that the fuse is intact?

• a) 0 volts

• b) Voltage equal to the battery voltage

• c) Infinite resistance

• d) Zero resistance

What happens to the total resistance in a series circuit when more resistors are added?

• a) It decreases

• b) It increases

• c) It remains the same

• d) It fluctuates

What happens to the total resistance of a series circuit when one resistor fails (opens)?

• a) It increases

• b) It decreases

• c) It remains the same

• d) It becomes infinite

In a parallel circuit, how does adding more branches affect the total resistance?

• a) It decreases

• b) It increases

• c) It remains the same

• d) It becomes infinite

What happens to the total current in a parallel circuit if one branch is disconnected (opens)?

• a) It decreases

• b) It increases

• c) It remains the same

• d) It becomes erratic

What is the role of the alternator in a vehicle's electrical system?

• a) To store electrical energy

• b) To convert mechanical energy into electrical energy

• c) To regulate voltage

• d) To provide power to start the engine