Automotive Electrical Quiz Questions And Answers

Reviewed by Matt Balanda
Matt Balanda, BS (Aerospace Engineering) |
Science Teacher
Review Board Member
Matt Balanda, a Calvary Chapel Christian School leader with a Bachelor's in Aerospace Engineering and Mathematics, transitioned from Aerospace Engineering to Education with a Master's from California Baptist University. As the High School Vice-Principal and Physics teacher, he nurtures students' love of learning and faith, creating an enriching and transformational educational experience.
 , BS (Aerospace Engineering)
By Sjones
S
Sjones
Community Contributor
Quizzes Created: 1 | Total Attempts: 14,364
| Attempts: 14,437
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/10 Questions

    If AC is Alternating Current, then DC is

    • Delivery Current
    • Direct Current
    • Diverted Current
    • Delta Current
Please wait...
About This Quiz

Are you interested in an automotive electrical quiz? Have you got a passion for cars and a distinct knowledge of the ins and outs of these automobiles and the specific conditions required to keep them running smoothly every day? Take the following quiz, and you might find yourself with the knowledge to someday become an auto electrician! What is the process being undertaken, from putting your key into the ignition to taking off on the open road? Let’s see if you can tell us!

Automotive Electrical Quiz Questions And Answers - Quiz

Quiz Preview

  • 2. 

    A 48V forklift battery has individual 2V cells. There are how many cells?

    • 12

    • 18

    • 24

    • 48

    Correct Answer
    A. 24
    Explanation
    Since each individual cell has a voltage of 2V, to achieve a total voltage of 48V for the forklift battery, there must be 24 cells. This is because 2V multiplied by 24 cells equals 48V.

    Rate this question:

  • 3. 
    What type of screwdriver is this? - ProProfs

    What type of screwdriver is this?

    • Flathead

    • Phillips (Cross) head

    • Torx head

    • Hex head

    Correct Answer
    A. Phillips (Cross) head
    Explanation
    The correct answer is Phillips (Cross) head. This type of screwdriver is characterized by a cross-shaped head with a single slot in each arm of the cross. It is designed to be used with Phillips head screws, which have a corresponding cross-shaped recess. The Phillips head screwdriver is commonly used in many applications, particularly in woodworking and construction, as it provides better torque transfer and reduces the risk of cam-out compared to flathead screwdrivers.

    Rate this question:

  • 4. 
    This spanner is known as a _________ spanner - ProProfs

    This spanner is known as a _________ spanner

    • Open-end

    • Double ring

    • Combination

    • Crowsfoot

    Correct Answer
    A. Combination
    Explanation
    A combination spanner is a type of spanner that has open-end jaws on one end and a ring or socket on the other end. It is called a combination spanner because it combines the features of both an open-end spanner and a ring spanner. This allows it to be used for different types of nuts and bolts, making it a versatile tool.

    Rate this question:

  • 5. 

    You are broken down at night with a flat rear tire. In the frustration of fitting the spare, you kick all 4 wheel nuts into the scrub on the side of the road and lose them. What is the easiest way to get going quickly?

    • Call the dealer, get 4 new wheel nuts sent out the following morning.

    • Phone for a tow truck, hoping they can tow the car backwards.

    • Take 1 wheel nut off the other 3 wheels. Now they all have 3 wheel nuts.

    • Take 2 wheel nuts off the other back wheel. Now both rear's have 2 wheel nuts.

    Correct Answer
    A. Take 1 wheel nut off the other 3 wheels. Now they all have 3 wheel nuts.
    Explanation
    The easiest way to get going quickly in this situation is to take 1 wheel nut off the other 3 wheels. By doing this, all the wheels will still have 3 wheel nuts, which is the minimum requirement for safe driving. This solution allows the person to continue their journey without having to wait for new wheel nuts or a tow truck.

    Rate this question:

  • 6. 

    What's larger is the diameter? (in inches)

    • 3/8"

    • 3/16"

    • 3/4"

    • 3/2"

    Correct Answer
    A. 3/2"
    Explanation
    Among the given options, the largest diameter, measured in inches, is 3/2 inches (3/2"). This means that the size of the circular object with a 3/2-inch diameter is bigger compared to the objects with the other specified diameters, which are 3/8", 3/16", and 3/4". In this context, "diameter" refers to the measurement across the center of a circle or circular object, representing its width.

    Rate this question:

  • 7. 

    You have to remove a bolt with a 1/5" head, but you only have metric sockets. If we believe 1" is equal to 25.4mm, tell us the size socket which will most effectively remove the bolt?

    • 10mm

    • 12mm

    • 13mm

    • None of these

    Correct Answer
    A. None of these
    Explanation
    None of these options will effectively remove the bolt. Since the bolt has a 1/5" head, we need a socket size that is slightly larger than 1/5" in order to fit properly. Converting 1/5" to metric, we get approximately 5.08mm. Therefore, the closest socket size that will most effectively remove the bolt is 5.5mm, which is not listed as an option.

    Rate this question:

  • 8. 

    You have to remove a bolt with a 1/2" head, but you only have metric sockets. If we believe 1" is equal to 25.4mm, tell us the size socket which will most effectively remove the bolt?

    • 10mm

    • 12mm

    • 13mm

    • 14mm

    • 15mm

    Correct Answer
    A. 13mm
    Explanation
    The bolt has a 1/2" head, which is equivalent to 12.7mm. Since the closest metric socket size to 12.7mm is 13mm, the 13mm socket will most effectively remove the bolt.

    Rate this question:

  • 9. 

    There are 2 x 100W driving lights attached to a vehicle. If they draw somewhat 8.3A, when switched on, tell us what voltage the vehicle is. Ohm's Law: Voltage = Load / Current

    • 6V

    • 12V

    • 24V

    • 48V

    Correct Answer
    A. 24V
    Explanation
    The correct answer is 24V. According to Ohm's Law, voltage is equal to the load divided by the current. In this case, the load is 200W (2 x 100W) and the current is 8.3A. By substituting these values into the formula, we can calculate the voltage. Therefore, 200W / 8.3A = 24V.

    Rate this question:

  • 10. 

    When a 12V lead acid battery is discharged, what is the end state of the electrolyte (liquid)?

    • Sulfuric acid (H2SO4)

    • Water (H20)

    • Hydrochloric acid (HCl)

    • Lead Sulphate (PbSO4)

    Correct Answer
    A. Water (H20)
    Explanation
    When a 12V lead acid battery is discharged, the end state of the electrolyte (liquid) is water (H20). During the discharge process, the chemical reaction within the battery converts the sulfuric acid (H2SO4) in the electrolyte into water (H20) and lead sulfate (PbSO4). This is a reversible reaction, and when the battery is charged again, the lead sulfate is converted back into sulfuric acid, replenishing the electrolyte. Therefore, at the end of the discharge process, the electrolyte consists mainly of water.

    Rate this question:

Matt Balanda |BS (Aerospace Engineering) |
Science Teacher
Matt Balanda, a Calvary Chapel Christian School leader with a Bachelor's in Aerospace Engineering and Mathematics, transitioned from Aerospace Engineering to Education with a Master's from California Baptist University. As the High School Vice-Principal and Physics teacher, he nurtures students' love of learning and faith, creating an enriching and transformational educational experience.

Quiz Review Timeline (Updated): Jun 25, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jun 25, 2025
    Quiz Edited by
    ProProfs Editorial Team

    Expert Reviewed by
    Matt Balanda
  • Feb 14, 2009
    Quiz Created by
    Sjones
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.