The relation between C and K is C Celsius° K Kelvin ?
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Source: Telepilote theorique examen 39
A pressure of 200 bar is equivalent to approximately ?
Changes in temperature of the fuel affect its density volume and dielectric value Er A decrease in temperature causes ?
On a multi engine aircraft a synchroscope provides An automatic and/or a visual system to synchronize propellers rotation speeds. Cqb15 may 2012 on a multi engined aircraft a synchronizing system ensures propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. 
The parameters used to represent thrust are 1 n1 low pressure shaft speed 2 n2 high pressure shaft speed 3 egt4 eprthe combination that regroups all of correct statements An automatic and/or a visual system to synchronize propellers rotation speeds. Cqb15 may 2012 on a multi engined aircraft a synchronizing system ensures propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. 
Which statement about fuel flow are correct or incorrect i fuel flow may be measured volume per unit of time ii fuel flow may be measured mass per unit of time I correct ii correct. Cqb15 may 2012 units used fuel flow when measured volume per hour are liters/hour us gallons/hour units used fuel flow when measured mass per hour kilogrammes/hour pounds/hour. 
In a vibration monitoring system a filter 1 erases any output which normal to engine2 allows through to amplifier any frequency that considered to be harmful to engine correct 2 correct. Revised ecqb03 july 2016 the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-8
Torque measurement based on Twist of torque shaft of a known length. torque can also be determined measuring change in phase between torque shaft the reference shaft. Question 39-9
For an engine vibration indicator vibration monitoring system No specific unit displayed. Feedback cqb15 may 2012 no specific unit displayed a vibration monitoring system. Question 39-10
Given p = power t = torque n = rpmthe correct relationship No specific unit displayed. Feedback cqb15 may 2012 no specific unit displayed a vibration monitoring system. Question 39-11
A unit commonly used to calculate fuel flow consumption No specific unit displayed. The following units are used fuel flow when measured mass per hour kilogrammes/hour pounds/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-12
The pressure measured A force per unit area. The following units are used fuel flow when measured mass per hour kilogrammes/hour pounds/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-13
Which of following components converts heat into a mechanical movement A force per unit area. a bimetallic strip used to convert a temperature change into mechanical displacement the strip consists of two strips of different metals which expand at different rates as they are heated usually steel copper or in some cases steel brass the strips are joined together throughout their length riveting brazing or welding the different expansions force flat strip to bend one way if heated in opposite direction if cooled below its initial temperature the metal with higher coefficient of thermal expansion on outer side of curve when strip heated on inner side when cooled. Question 39-14
A torque may be expressed in A force per unit area. The following units are used torque newton meters inch or foot pounds. Question 39-15
The different types of tachometers are 1 electrical2 mechanical3 electronicthe combination that regroups all of correct statements A force per unit area. the following types of tachometers are used in aviation mechanical (rotating magnet) electrical (three phase tacho generator) electronic (impulse measurement with speed probe phonic wheel). Question 39-16
By integrating a flow with respect to time we obtain A force per unit area. Cqb15 august 2012 the following units are used fuel flow when measured mass per hour kilogrammes/hour pounds/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-17
On a multi engine aircraft a synchroscope provides Qualitative indication of difference in speed between engines. Cqb15 august 2012 synchroscope example of display beechcraft baron 58 cockpit. Question 39-18
The operating principle of an oil torque meter 1 axial movement generated helically cut gears2 axial force proportional to torque correct 2 correct. Revised ecqb03 july 2016. Question 39-19
On an twin engined aeroplane synchroscope uses following principle It measures frequency difference between two engines driven alternators. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-20
An oil torque meter makes use of followings phenomenon Axial movement generated when hellicaly cut gears are used to transfer power from one shaft to another. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-21
On an electronic display unit source of vibrations sensed an engine vibration monitoring system Can be displayed (n or n2). Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-22
On an electronic display unit following n1 parameters can be displayed 1 present n12 commanded n13 maximum n1 operating limitthe combination that regroups all of correct statements Can be displayed (n or n2). Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-23
On a n1 indicator maximum n1 admissible May be greater than %. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-24
Concerning thrust measurement n1 defined as Low pressure shaft speed. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-25
Engine speed most commonly displayed as a Percentage of a maximum engine speed. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-26
A fuel flow meter located In high pressure fuel line to burners. Revised ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal. Question 39-27
Fuel flow can be expressed in 1 kg per m32 lb per m33 lb per hour4 kg per hourthe combination that regroups all of correct statements In high pressure fuel line to burners. Ecqb03 july 2016 the following units are used fuel flow when measured mass per hour kilogrammes/hour pounds(lb)/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-28
Total fuel consumption obtained Integrating fuel flow with respect to time. Ecqb03 july 2016 the following units are used fuel flow when measured mass per hour kilogrammes/hour pounds(lb)/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-29
Which of these statements about fuel quantity measurement are correct or incorrect 1 the quantity of fuel can be measured volume2 the quantity of fuel can be measured mass correct 2 correct. Ecqb03 july 2016 the following units are used fuel flow when measured mass per hour kilogrammes/hour pounds(lb)/hour the following units used fuel flow when measured volume per hour liters/hour us gallons/hour. Question 39-30
Which of these statements about fuel mass unit correct correct 2 correct. 1 kg = 2 2 pounds (lbs). Question 39-31
Given q = charge coulombs u = potential difference between plates volt the capacitance c farads defined as correct 2 correct. Ecqb03 july 2016 c the capacitance coulomb the quantity of electricity transported in 1 second a current of 1 ampere u the stored energy. Question 39-32
The value shown the indicator of a vibration monitoring system 4 this A level of vibration without any unit. the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-33
The types of sensors used in an engine vibration monitoring system may be 1 magnetic2 tachometer3 piezo electric crystalthe combination that regroups all of correct statements A level of vibration without any unit. the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-34
On a twin engined aeroplane synchroscope can consist of A rotor fed the alternator driven the master engine a stator fed the alternator driven the engine to synchronised. Ecqb03 july 2016 the purpose of a synchroscope to reduce structural vibration noise the synchronizing system ensures that propeller speeds are all same this achieved an electrical system that compares speed signals from engine mounted generators (engines driven alternators) out of balance signals using one engine as a master signal are automatically corrected electrically trimming engine speeds until all signals are equal synchroscope example of display beechcraft baron 58 cockpit. Question 39-35
Vibration indicated in cockpit as A rotor fed the alternator driven the master engine a stator fed the alternator driven the engine to synchronised. Revised ecqb03 july 2016 the engine vibration monitoring on a turbojet engine indicates any vibration resulting from an imbalance on rotation parts of engine the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-36
Given p = powert = torqueomega = angular velocitythe correct relationship A rotor fed the alternator driven the master engine a stator fed the alternator driven the engine to synchronised. Revised ecqb03 july 2016 the engine vibration monitoring on a turbojet engine indicates any vibration resulting from an imbalance on rotation parts of engine the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-37
The magnitude of a torque defined as Force times its lever arm. Revised ecqb03 july 2016 the engine vibration monitoring on a turbojet engine indicates any vibration resulting from an imbalance on rotation parts of engine the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-38
The operating principle of an electronic torque meter As power increased torque shaft twists. Revised ecqb03 july 2016 the engine vibration monitoring on a turbojet engine indicates any vibration resulting from an imbalance on rotation parts of engine the gas turbine aircraft engine vibration indicating system features include engine curls rotation frequency measurement with two independent measuring channels vibration level measurement with multiple engine mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow band filters on curls main harmonics frequencies as well as a comparison of measured extreme limits of vibration 'excessive vibration' 'vibration limit' signals formed when limits are exceeded no specific unit displayed a vibration monitoring system. Question 39-39
If outside temperature at 35 000 feet 40°c local speed of sound As power increased torque shaft twists. lss varies with square root of absolute temperature formula lss = 39 x square root of (oat+273) lss = 39 x square root of 233 lss = 595 kt. Question 39-40
The error in altimeter readings caused the variation of static pressure near source known as As power increased torque shaft twists. Variation of static pressure near source known as position error barometric error caused setting wrong number in altimeter window instrument error caused the imperfections of manufacture hysteresis errors are caused the irregular elasticity of capsule.
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