A231 Q1

1. (8306) What would be the effect if the piston return spring broke in a brake master cylinder?

• a. The brakes would become spongy.

• b. The brake travel would become excessive.

• c. The brakes would drag.

(8307) In brake service work, the term 'bleeding brakes' is the process of

• •a. withdrawing air only from the system.

• •b. withdrawing fluid from the system for the purpose of removing air that has entered the system.

• •c. replacing small amounts of fluid in reservoir.

(8309) A pilot reports the right brake on an aircraft is spongy when the brake pedal is depressed in a normal manner. The probable cause is

• •a. the hydraulic master cylinder piston is sticking.

• •b. air in the brake hydraulic system.

• •c. the hydraulic master cylinder piston return spring is weak.

(8310) Aside from an external leak in the line, what will cause parking brakes to continually bleed off pressure?

• •a. An internal leak in the master cylinder.

• •b. Insufficient hydraulic fluid in the reservoir.

• •c. Glazed brake linings.

(8314) When working with high pressure, high-performance tires, why is it recommended to deflate the tires when removing wheels from the axle?

• •a. To relieve the strain on the wheel retaining nut and axle threads.

• •b. To ensure safety in case of a defective wheel or broken tie bolts.

• •c. To reduce the size of the tire for ease of removal.

(8315) The braking action of a Cleveland disk brake is accomplished by compressing a rotating brake disk between two opposite brake linings. How is equal pressure on both sides of the rotating disk assured?

• •a. By allowing the brake rotor to float to automatically equalize as pressure is applied to the rotor.

• •b. By allowing the caliper to float to automatically equalize as pressure is applied to the rotor.

• •c. By allowing the brake linings to automatically equalize as pressure is applied to the rotor.

(8316) If it is determined that spongy brake action is not caused by air in the brake system, what is the next most likely cause?

• •a. Worn brake lining.

• •b. Internal leakage in the master cylinder.

• •c. Deteriorated flexible hoses.

(8317) Many brake types can be adapted to operate mechanically or hydraulically. Which type is not adaptable to mechanical operation?

• •a. Single-disk spot type.

• •b. Single-servo type.

• •c. Expander-tube type.

(8318) A brake debooster valve is installed in systems where the high pressure of the hydraulic system (3000 psi) is used to operate brakes

• a. that are designed to work with lower pressure.

• b. that are used in conjunction with an antiskid system.

• c. that are used on aircraft having high landing speeds.

(8319) A stripe or mark applied to a wheel rim and extending onto the sidewall of a tube-type tire is a

• •a. slippage mark.

• •b. wheel-to-tire balance mark.

• •c. wheel weight reference mark.