247SimpleTests
ASVAB · Vehicle Systems

What does the clutch do in a manual transmission vehicle?

Reviewed by Jordan Morley, Editorial Lead at 247SimpleTests. Written by the 247SimpleTests Editorial Team from the official source material cited on every question.

Correct answer

Engages and disengages the engine from the transmission, allowing gear changes

  1. A Charges the battery
  2. B Steers the vehicle
  3. C Applies the brakes
  4. D Engages and disengages the engine from the transmission, allowing gear changes

Why this is the answer

The CLUTCH engages and disengages the engine from the transmission, allowing the driver to CHANGE GEARS smoothly and to stop without stalling. ASVAB Auto Information tests the manual drivetrain. Pressing the clutch pedal DISENGAGES the engine from the transmission (so you can shift gears or stop); releasing it re-engages the connection. The clutch uses friction plates. Automatic transmissions use a torque converter instead of a clutch pedal. Knowing the clutch's role (connecting/disconnecting engine and transmission for shifting) is commonly tested.
Source: ASVAB Auto Information — Clutch

Practice more questions

This question is from our ASVAB Practice Tests practice test. Take the full practice test to test your knowledge across all Vehicle Systems and other topics.

Take the Auto Information practice test →

About this topic: Vehicle Systems

Vehicle systems questions ask how the major subsystems work together — fuel, ignition, cooling, lubrication, electrical, exhaust and drivetrain — and what symptom points to which system. You do not need mechanic-level depth, just the function of each part and the common failure signs. This is one of 9 Auto Information questions on vehicle systems, each with a full explanation on a single study page.

New to this exam? Our ASVAB exam guide explains the format, scoring, and how to prepare.

Related questions

Vehicle Systems

What is the main function of the alternator in a vehicle?

 Vehicle Systems

What is the purpose of engine oil?

 Vehicle Systems

What does the cooling system (radiator and coolant) do in a vehicle?

 Vehicle Systems

What component ignites the air-fuel mixture in a gasoline engine?

Recommended study materials

Study guide

ASVAB Total Prep (Kaplan)

Kaplan's complete ASVAB guide with 1,000+ practice questions, 6 full-length tests, and AFQT focus.

Check Price → Study guide

Barron's ASVAB with Online Tests 12th Ed.

Comprehensive ASVAB review for all nine subtests with full-length practice exams and online tools.

Check Price → Study guide

ASVAB for Dummies 4th Ed. (Wiley)

Accessible, thorough ASVAB prep covering all subtests with tips for boosting your AFQT score.

Check Price →

As an Amazon Associate, CJ Affiliate, and AWIN publisher we earn from qualifying purchases. Links above are affiliate links. Full disclosure →