ППП конструкции ВС

A cantilever wing:

Control surface flutter is minimized by:

What is the purpose of the wing main spar?

In the construction of airframes the primary purpose of frames or formers is to:

The skin of a modern pressurized aircraft:

The pressure filter in a hydraulic system:

Case drain filters are:

In the case of a failure of a cut-out valve:

A force of 100 N is applied to 2 separate jacks, the area of one is 0.02 m2 and the other is 0.04 m2:

Def. Stan 91/48 is ---------- and is ------------- based:

Accumulator floating piston:

The contents of the hydraulic fluid reservoir are checked. They indicate that the reservoir is at the full level. The system is then pressurized. The contents level will:

A non-return valve:

An ACOV will:

When the hydraulic system pressure is released:

A variable displacement pump on system startup will be at:

Different diameter actuators supplied with the same pressure at same rate:

The seal materials used with hydraulic fluids to DEF/STAN 91-48 and SKYDROL 700 specification are respectively:

The formula which gives the minimum speed (VP) at which aquaplaning may occur is:

A likely cause of nose wheel shimmy is:

A nose wheel steering control system:

Oil is used in an oleo strut to:

Creep (slippage):

When inflating a tyre fitted to an aircraft, the tyre pressure reading on the gauge should be modified by:

The purpose of pulley wheels in cable control systems is:

The purpose of the fairleads in a cable control system is to:

In a manual flying control system the control inputs to the primary control surfaces: 1. are reversible 2. are irreversible 3. are instinctive for the movement required 4. are opposite for the movement required 5. are limited in range by flight deck obstructions

The advantages of a cable control are: 1. light, very good strength to weight ratio 2. easy to route through the aircraft 3. less prone to impact damage 4. takes up less volume 5. less bolted joints

Main and nose wheel bays are:

In level pressurized flight what does the outflow valve do?

Fatigue life of the fuselage is based on the:

What is the purpose of the duct relief valve?

What is the purpose of inward relief valves?

A humidifier is fitted to:

Cabin compressors:

The aircraft inhibiting switch connected to the A/C landing gear:

Inward Relief Valves operate:

During a normal pressurized cruise, the discharge valve position is:

An aircraft is prevented from pressurizing on the ground by:

A pressurization system works by:

Without added oxygen the time of useful consciousness at 30 000 ft is approximately:

In a continuous flow oxygen system, oxygen is supplied:

Rate of flow of oxygen is given in:

Lubrication of an oxygen component thread is by:

In an emergency chemically produced oxygen is supplied for a given period by:

At what altitude will the diluter-demand oxygen regulator provide 100% pure oxygen:

Susceptibility to hypoxia is increased by:

Baffles are fitted in aircraft fuel tanks:

To indicate that a refuelling bowser carries JET A1 aviation kerosene:

The disadvantage of refuelling the aircraft to “tanks full” the night before a departure in the heat of the day is that:

If a fuel sample appears cloudy or hazy, the most probable cause is:

The background colour scheme for fuelling system pipelines carrying the following fuels is:

Refuelling with passengers on board is not permissible:

A “wide-cut” fuel is:

Fuel tank booster pumps are:

If a fuel tank with a capacitive quantity system was filled with water instead of fuel, the gauge would indicate:

When refuelling an aircraft:

All effects of electricity take place because of the existence of a tiny particle called the:

A material with a deficiency of electrons becomes:

Chemical action produces electricity in:

The unit measurement of electrical resistance is:

The unit used for measuring:

A device consuming 80 watts at 8 amps would have a voltage supply of:

If a number of electrical consuming devices were connected in parallel, the reciprocal of the total resistance would be:

The current flowing in a circuit is:

The unit of resistance is the:

550 k ohms may also be expressed as:

In a circuit fitted with a non-trip free circuit breaker if a fault occurs and persists:

If the reset button is pressed in the trip free circuit breaker, the contacts with the fault cleared will:

A thermal circuit breaker works on the principle of:

Overloading an electrical circuit causes the fuse to ‘Blow’. This:

A fuse in an electrical circuit is ‘blown’ by:

Battery voltage is tested with:

An aircraft has three batteries each of 12 volts with 40 Ah capacity connected in series. The resultant unit has:

A battery is checked for serviceability by:

A lead acid battery voltage should be checked:

The nominal voltage of an alkaline cell is:

The level of the electrolyte must be maintained:

Acid spillage in an aircraft can be neutralized by using:

The area of force around a magnet is termed:

Which of the two poles has the greatest strength?

A soft iron core in an electromagnet:

An EMF is induced in a conductor rotating in a magnetic field by:

An internally excited generator is one where:

The voltage regulator:

On aircraft, generator voltage is regulated by:

If an aircraft electrical system is quoted as 24 volts DC, the output of the generator is:

Rotary actuators are used for:

Press-to-test lights are used:

In an electrical circuit the reverse current cut-out relay will open:

In the event of the cut-out points sticking in the closed position, the most probable results, when the engine stopped would be:

A component whose job is similar to a generator cut-out is:

In an aircraft electrical system which incorporates a voltmeter, the voltmeter indicates:

If a generator fails in flight:

Loads on a bus bar are:

If the ammeter shows ‘no’ charge, yet the battery remains charged, you would look for:

In a “2 pole” electrical circuit, a short of the conductors would result in:

In a double pole circuit:

Why are static wick dischargers fitted to aircraft?

The electrical components of aircraft systems are screened to: