Question

When an S-cam turns inside a brake drum, the S-cam:

Answers

Presses the brake shoes against the inside of the brake drum.

Presses the brake shoes against the brake linings.

Presses the brake linings against the wheel axles.

Explanation

When a brake pedal is pressed and the S-cam is turned, the S-cam presses the brake shoes against the inside of the brake drum. This causes friction and will cause the vehicle to slow.

This questions appears in the following tests:

California Class B Knowledge Test

California Air Brakes

Connecticut Class A Knowledge Test

Connecticut Class B Knowledge Test

Connecticut Air Brakes

Hawaii Air Brakes

Iowa Class B Knowledge Test

Louisiana Air Brakes

Maine Class B Knowledge Test

Maine Air Brakes

Michigan Class B Knowledge Test

Mississippi Class A Knowledge Test

New Hampshire Air Brakes

New Mexico Air Brakes

Washington Air Brakes

Wyoming Class B Knowledge Test

Do you currently have car insurance? Insurance is mandatory to drive in Ohio

When an S-cam turns inside a brake drum, the S-cam:

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