An object with stored energy due to it's position is know as?

What is considered to be called a "constant pressure cycle"?

If there is 100% airflow going through the air inlet of a turbofan engine, how much is then going to be absorbed by the compressor?

How is energy from the exhaust in turboshaft used?

A radial outflow compressor is also know as?

What is used in an engine to isolate it incase of a fire emergency?

What type of flow is output by a low pressure fuel pump?

How does a fuel heater prevent the blockage of the LP fuel filter from ice?

What is the purpose of the differential pressure switch?

What is the major difference between a spur gear pump and a multiple piston pump?

What does the constant volume pump use to maintain pressure in case of excessive containination?

Where is the highest point of pressure in an engine?

Duplex nozzles use what to control flow?

What is the purpose of having the drain line at the lowest or bottom point of the system?

What ratio of fuel is used in a combustor for cooling?

How many sections are in a turbine engine?

Where is the location of the piezoelectric probe that is used to measure vibration?

In a hydropneumatic fuel control system, when the governor valve is closed, what does the acceleration control pressure (Px) and governor pressure (Py) do to the compressor pressure (Pc)?

What does the power lever directly drive in a hydrochemical fuel control system?

What is the major difference between Supervisory electronic engine control and Full advisory engine control?

What type of measurement is taken for reading a ratiometer?

Why are thermocouple probes connected in parallel?

Which part of a low joule HEIU system can potentially lethal?

Which one of these is used in a FADEC subsystem for redundancy?

A body at rest tends to stay at rest unless changed by an external force.

F=MA or the acceleration of a body is proportional to the force causing it, and INVERSLY proportional to the mass to the body.

For every action there is an equal and opposite reaction.

Which law is used to determine excatly the amount of thrust achieved by the gas turbine engine?

In the centre of a venturi velocity and pressure

Gas flowing through a convergent duct - subsonic airflow

Gas flowing through a divergent duct - subsonic airflow

When is there an exception to the venturi principle?

Fuel pumps, hydraullic pumps, electrical generator and other engine accesories are driven by?

Which type of trubojet has very low propulsive efficiency, high specific fuel consumption and an underible noise level.

Which type of compressor was designed for high compression ratios, quick acceleration, better control of stall characteristics.

The ratio of the mass airflow which flows through the fan duct, divided by the mass airflow which flows through the core of the engine is?

A ______ accelerates a large quantity of air rearwards at a low rate

A _____ accelerates a small quatity of air rearwards at a high rate.

Which type of engine is more efficient than a pure turbo jet as the princliple is more akin to that of a propeller, in that is accelerates a relatively large mass of air at a low rate.

Approx what percentage of the thrust produced in a twin spool high bypass engine is from the bypass air ducting?

Which tyoe of engine is used to drive any industrial application that require high torque output?

Which engine uses a mulitstage turbine and planetary reduction gear.

Single large disc engines must be restricted in rpm due to which high load on the disc?

Why is planetary gearing selected for the reduction gear?

Which type of engine does the propeller shaft and thurst lines lay on the same centre line as the compressor casuing minimal interference with the entry of the air into the air intake?

Which engine is all the energy in the gases absorbed by the turbines and tranformed into rotational force or torque with little or no thrust produced in the exhaust?

Which part of an engine operate on the priniple of acceleration of a working fluid followed by diffusion to convert aquired kinetic energy to a pressure rise?

The primary purose of which engine section is to increase the pressure of the mass of air entering the engine inlet the discharge it to the diffuser/

Compressor efficency is based on the priniple of maximum compression with minimal temperature rise. Temperatre rise is caused by?

What engine component secondary purpose is to supply engine service bleed air to cool hot section parts, pressurise bearing seals, supply heated air for the inlet anit-icing and fuel system heat for de-icing?

Which compressor type has the advantges of light weight, basic construction and ruggedness/

Which part of an axial flow compressor is placed at the rear to decrease velocity and raising temperature as well as directing the airflow to the net stage compression at the desired angle?

How many stages of compression are in an axial flow compressor?

Which section of an engine contains a fuel injection system, ignition source and fuel drainage system?

The function of which section is to add heat energy to flowing gases, expanding and accelerating gases into the turbine section?

What is important to do to reduce the possibilty of exceeding turbine inlet temperatures due to an engine fire after shutdown and to prevent gum deposits in the fuel manifold, nozzles and combustion chambers?

Approx what percentage of incoming air is designated to the primary and seconday paths?

Which section of an engine carried out the task of extracting energy from the hot gases released from the combustion system and expanding them to a lower pressure and temperature?

What is required at the first stages of the stator vanes and rotor blades?

The turbine inlet temperature, mass airflow through the engine and velocity and pressure of the exhaust jet are all effected by which aspect of the exhaust section?

Which section of an engine is to collect the gas flow, straighten it and increase its velocity?

Which section of an engine is used to power both engines and aircraft accessories such as generators, hydraulic pumps, fuel pumps, oil pumps and act as a reservoir and housing the accessory drive gears?

The accessory drive location is selected to keep the engine profile to a minimum for?

What can be caused by a sudden increase in pressure at the combstion chamber end of the compressor or blockage at the inlet compressor?

A stall through the compressor (the whole spool stalls) is called?

As there is no counter EMF in a torque motor the coils are made of many turns of fine wire increasing resistance and limiting?

The EEC acting in a supervisory capacity modulates?

In a system with an EEC, when a problem developes the control automatically reverts to which system?

Bases on the input signals to the EEC, the output signals adjust and control?

The hydromechincal unit is connector to what to ensure fuel control in case of a failure of the EEC?

The hydromechincal unit is comprised of?

Power for the EEC comes from?

If the EEC has a double channel failure

Reduced crew workload, increased and improved reliability and reduced fuel consumption are all benefits of?

Which two engine indications will the pilot need to monitor to set the target thurst in a FADEC system?

What will allow the engine to work nearer to the surge line thus increasing thrust whilst reducing the chance of surge or stall in a FADEC system?

What type of control likage is there none of from the power levers to the engine?

Which system elmiates the need for engine rigging and trimming?

To achieve stable running, in all the engine conditions, the FCU maintains a correct combustion zone air-to-fuel mixture ratio of?

The control of the power of the gas turbine engine is achived by regualting?

The relationship between the airflow induced through the engine and the fuel supplied is complicated by changes in?

Throttle movement, air temp and pressure, rapid acceleration and deceleration and signals of engine gas temp and compressor delivery are all part of a servo system controlling?

What are the two ways in which a HP fuel pump is varied?

During acceleration fuel flow must be held proportionate to the amount of?

The ECU ID plugged into a connector and attached to where on the engine?

If two channels on a EEC have equal health status?

EEC will go iinto a soft revisionary mode using the last known ambient pressure signal or hard revisionary mode which uses a fixed reference ambient temperature for the engine is an example of?

The EEC is provided with feedback valves and actuators fitted with duel?

The HMU provides an interface between the EEC signal and fuel flow achived by what which controls the fuel supply to the nozzles?

The EEC is equipt with what to provide maintence information and tests the engines capabilities by an interface monitoring unit?

What spray pattern helps prevent engine flameout in rain and snow conditions?

What occurs when engine thrust command is reduced during decent?

What dumps air not required for efficient engine performance from the output of the LP compressor in the engine bypass duct?

The variable bypass valve is open at low rpm when the air is not required and usually fully closed above what N1 value?

What controls the angle of attack of the compressor blades and can adjust the airflow into the compressor?

What is controlled by the EEC to ensure maximum efficency and reliability of the engine?

What type of clearance changes are due to uniform loading on the stationary or rotating structures that create uniform radial displacement?

Which loads are responisble for the largest radial variations in tip clearance?

Which loads produce clearance changes by casuing the rotor to expand or contrat during changes in engine acceleration?

Which loads produce both axisymmetric and asymmetric clearance changes due to ther thermal expansion of the stationary and rotating structures?

Temperature difference between the hot and cold junctions and circuit resistance determine what in a thermocouple?

Which thermocouple is general purpose, smaller temperature range and shorter lifespan at higher temps with the positive leg iron and negative leg constantan alloy?

Which thermocouple provides the widest operating temperature range and the postive leg is a non-magnetic and negative leg magnetic?

Which thermocouple is best suited at low temps and low temp environments consisting of postive leg copper and negative leg Cu-Ni alloy wire?

Which system has resistors to adjust the parallel resiatnce of the thermocouple section to the value required by the system?

Which probes are mounted in the tail pipe and are connected in parallel so that their output is averaged?

Which thermocouples may be either single or duel hot junctioins?

Which type of EGT provided additional identical hot jusction which gives a signal to an electronic fuel control for schedulling purposes or to test connection for calibrating the EGT circuit/

All thermocouple probes are connected in what to read an average EMF?

What is used to calibrate the system since the lengths of wires from the sensors to the indicators is critical and compensates for ambient air temperatures in an EGtT system?

What is incorporated in the indicator or circuit for an EGT system to prevent variations of cold junctions temperatures?

What type of thermocouple are gas turbine engines fitted with due to the rapid velocty of the jet efflux?

Where is the cold junction within the FADEC for a thermocouple?

Which method is used to measure extreme temperatures via infrared radiation given off by the turbine clades at the outlet of the combustion chamber?

In a piston engine EGT system, at which temperature will the needle start moving on the gauge?

Which type of CHT probe has the termocouple junction welded directly to the probe shaft, have faster response time, longer life and lower cost?

Which type of CHT probe is is susceptible to more electrical noise?

In a single spool engine, the RPM is measured by a tacogenertor mounted on the?

On some engines, both N1 and N2 can be measured using a tacho generator, while others N1 may use a?

A magnetic pick up for RPM (phonic wheel sensor) im mounted where on the engine?

Why is there sometimes two impluse tachometers mounted?

A triple spool engine has an N1 tacometer to indicate?

There should be no bend with a radius of less than 6 inchs and no bend within 3 inchs of either end terminal i applicable to which type of tachometer?

What measures the difference between the compressor inlet pressure and turbine discharge pressure?

To calculate the EPR required for take off this is done by?

What is the difference between jet pipe pressure and turbine discharge pressure?

Which oil pressure system uses 26VAC from the electrical system and is connected with a hose to the oil pump outlet line to the engine?

In a strain gauge oil pressure system, the resistance of the strain is detected in which circuit then amplified before being sent to the EEC?

What is a negative to a piezoelectric oil pressure sensor?

Due to a positive temperature coefficient of resistance in a wheatstone bridge oil temperature system, an open circuit will cause?

In a wheatstone bridge oil temperature system, a full scale low reading will be due to?

What is the disadvantage of a wheatstone bridge oil temperature system?

In a rotating vane type fuel flow meter, what prevents any electrical transmitter friction from affecting the movement of the vane?

In a rotating vane tyoe fuel flow meter, what is fitted at the top of the fuel chamber to relieve and bypass excess fuel flow when the flow is greater than the capacity of the tranmitter or the vane movemnt becomes jammed and restricts the fuel flow?

What is the puropose of the spring in a turbine type fuel flow measurement?

Which type of transducer is used to convert the speed of the turbine to an elecctrical signal to be used by an advanced fuel gauge to produce a variety of readouts and warnings in a piston engine fuel flow system?

When an engine is idiling, the MAP is likely to be less than how much atmospheric pressure?

In a MAP gauge, what protects the mechaniism from pulsing and pressure surges?

What is the name for the shaft mounted so that it forms a sleeve around the torque shaft in a torque shaft indication system?

Which part of a torque shaft system is not subject to any torque as it is only connected to the engine?

The signals from both pick up assembilies are fed to which part of a torque shaft indication system?

What is the first stage of the reduction in a gear axial loading type torque system?

What is used in place of inductive pick off for data transmission in a load cell system?

What is the advantage of a load cell torque system?

The flexible drive having a limited wear life - not reccomended to use over more than 25 feet and is limited to a 9-inch bend radius is related to which type of tachometer?

Which tachometer is an engine driven, permanent magnet, three phase AC generator which the generator drives a synchornous motor in the indicator?

Which aircraft type are most likley to use the inductive pick off/phoic wheel type sensor for torque indication?

The two accelerometers in an EVM are mounted at which angle to the compressor/turbine shafts?

A series wound electric motor has a high starting torque which is suitable for turning which engine against mechincal friction and cylinder compression?

In an inertia engauged jaw clutch electric starting system, why is the slipping fricton cluth incorporated?

Starter engaugement with the engine drive during engine start, torque limiting to prevent mechincal damage and starter disengagement from engine drive as speed increases above starter speed are all functions of which component in a Pawl type overrunning

What is the purpose of torque limiting in a pawl type overrunning clutch?

To ensure a start is not carried out on a single TRU and the engine gauging systems are all powered for the start in all conditions

The featuures of the starting control circuit, reverse current relay and generator control panel are all preformed by whcih unit?

Light weight and simple and economical operation are all advtanges of which starting system?

In a pneumatic starting system, at what percentaage N2 does the centrifugal switch open?

What prevents the holding relay from re-energising in a pneumatic starting system?

Which positions are the igniter plus located on a gas turbine engine?

In FADEC applications a different channel is used consecutive to prevent what on the igniter plug adn ensure integurity?

The time limit placed on the operation of the ignition system by the manufacturer to prevent heat damage to its components is called?

What is used for igniting in extremely cold enviroments?