Practice Quiz for Block Final #2

A brake de-booster valve is installed in systems where the high pressure of the hydraulic system (3000 psi) is used to operate brake A. that are used on aircraft having high landing speeds B. that are used in conjunction with an antiskid system C. that are designed to work with lower pressure

that are designed to work with lower pressure

Over-inflated aircraft tires may cause damage to the A. brake linings B. wheel flange C. wheel hub

wheel flange

Exposure to and/or storage near which of the following is considered harmful to aircraft tires? 1. low humidity 2. fuel 3. oil 4. ozone 5. helium 6. electrical equipment 7. hydraulic fluid 8. solvents A. 2, 3, 4, 5, 6, 7, 8 B. 1, 2, 3, 5, 7, 8 C. 2, 3, 4, 6, 7, 8

2, 3, 4, 6, 7, 8

A pilot reports that the right brake on an aircraft is spongy when the brake pedal is depressed in a normal manner. The probable cause is A. air in the brake hydraulic system B. the hydraulic master cylinder piston is sticking C. the hydraulic master cylinder piston return spring is weak

air in the brake hydraulic system

On an air valve core stem, what indicates high-pressure type? A. an embossed letter 'NP' B. an embossed letter 'HP' C. an embossed letter 'H'

an embossed letter 'H'

Aside from an external leak in the line, what will cause parking brakes to continually bleed off pressure? A. glazed brake linings B. insufficient hydraulic fluid in the reservoir C. an internal leak in the master cylinder

an internal leak in the master cylinder

Why do tire and wheel manufacturers often recommend that the tires on split rim wheels be deflated before removing the wheel from the axle? A. to remove the static load imposed upon the wheel bearings by the inflated tire B. to relieve the strain on the wheel retaining nut and axle threads C. as a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened

as a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened

A sleeve, spacer, or bumper ring is incorporated in a landing gear oleo shock strut to A. reduce the rebound effect B. limit the extension stroke C. limit the extension of the torque arm

limit the extension stroke

What is the purpose of the torque links attached to the cylinder and piston of a landing gear oleo strut? A. limit compression stroke B. maintain correct wheel alignment C. hold the strut in place

maintain correct wheel alighment

After performing maintenance on an aircraft's landing gear system which may have affected the system's operation, it is usually necessary to A. conduct a flight test B. re-inspect the area after the first flight C. make an operational check with the aircraft on jacks

make an operational check with the aircraft on jacks

The primary purpose for balancing aircraft wheel assemblies is to A. reduce the excessive wear and turbulence B. prevent heavy spots and reduce vibration C. distribute the aircraft weight properly

prevent heavy spots and reduce vibration

The removal, installation, and repair of landing gear tires by the holder of a private pilot certificate on an aircraft owned or operated is considered to be A. a violation of the Federal Aviation Regulations B. a minor repair C. preventative maintenance

preventative maintenance

The metering pins in oleo shock struts serve to A. meter the proper amount of air in the struts B. lock the struts in the DOWN position C. retard the flow of oil as the struts are compressed

retard the flow of oil as the struts are compressed

A stripe of mark applied to a wheel rim and extending onto the sidewall of a tube-type tire is a A. slippage mark B. wheel weight reference mark C. wheel-to-tire balance mark

slippage mark

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

the brakes would drag

When an air/oil type of landing gear shock strut is used, the initial shock of landing is cushioned by A. compression of the air charge B. compression of the fluid C. the fluid being forced through a metered opening

the fluid being forced through a metered opening

Internal leakage in a brake master cylinder unit can cause A. slow release of brakes B. the pedal to slowly creep down while pedal pressure is applied C. fading brakes

the pedal to slowly creep down while pedal pressure is applied

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. expander-tube type C. single-servo type

expander-tube type

What is one effect a restricted compensator port of a master cylinder will have on a brake system? A. the restriction will cause slow release of the brakes B. the brakes will operate normally C. the reservoir will be filled by reverse flow

the restriction will cause slow release of the brakes

Why do most aircraft tire manufacturers recommend that the tubes in newly installed tires be first inflated, fully deflated, and then reinflated to the correct pressure? A. to eliminate all the air between the tube and the inside of the tire B. to test the entire assembly for leaks C. to allow the tube to position itself correctly inside the tire

to allow the tube to position itself correctly inside the tire

De-booster valves are used in brake systems primarily to A. ensure rapid application and release of the brakes B. reduce brake pressure and maintain static pressure C. reduce the pressure and release the brakes rapidly

reduce the pressure and release the brakes rapidly

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 linings to automatically equalize as pressure is applied to the rotor B. by allowing the caliper to float to automatically equalize as a pressure is applied to the rotor C. by allowing the brake rotor to float to automatically equalize as pressure is applied to the rotor

by allowing the caliper to float to automatically equalize as pressure is applied to the rotor

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. internal leakage in the master cylinder B. deteriorated flexible hoses C. worn brake lining

deteriorated flexible hoses

On all aircraft equipped with retractable landing gear, some means must be provided to A. retract and extend the landing gear if the normal operating mechanism fails B. prevent the throttle from being reduced below a safe power setting while the landing gear is retracted C. extend the landing gear if the normal operating mechanism fails

extend the landing gear if the normal operating mechanism fails

When bleeding aircraft brakes, one of the indications that the air has been purged from the system is A. partial brake pedal travel B. firm brake pedals C. full brake pedal travel

firm brake pedals

Power boost brake systems are used on aircraft that have A. more than one brake assembly per axle B. high landing speeds C. low normal hydraulic system pressure

high landing speeds

An automatic damping action occurs at the steering damper if for any reason the flow of high-pressure fluid is removed from the A. replenishing check valve B. inlet of the steering damper C. outlet of the steering damper

inlet of the steering damper

The repair of an out-of-tolerance toe-in condition of the main landing gear wheels determined not to be the result of bent or twisted components consists of A. shimming the axle in the oleo trunnion B. inserting, removing, or changing the location of washers or spacers at the center pivotal point of the scissor torque links C. placing shims or spacers behind the bearing of the out-of-tolerance wheel or wheels

inserting, removing, or changing the location of washers or spacers at the center pivotal point of the scissor torque links

Aircraft brakes requiring a large volume of fluid to operate the brakes generally A. use power brake control valves B. do not use brake system accumulators C. use independent master cylinder systems

use power brake control valves

To prevent a very rapid extension of an oleo shock strut after initial compression resulting from landing impact, A. various types of valves or orifices are used which restrict the reverse fluid flow B. the air is forced through a restricted orifice in the reverse direction C. the metering pin gradually reduces the size of the orifice as the shock strut extends

various types of valves or orifices are used which restrict the reverse fluid flow

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

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