tag:blogger.com,1999:blog-5766813906411212155.post6385732038994328570..comments2024-03-27T18:58:12.292-07:00Comments on EASA PART 66 GUIDE: EASA Part 66 : Aircraft aerodynamic, structure and systemsoulhttp://www.blogger.com/profile/08460014309865274596noreply@blogger.comBlogger26125tag:blogger.com,1999:blog-5766813906411212155.post-7875107466709038552023-12-14T01:02:28.891-08:002023-12-14T01:02:28.891-08:00Question Number. 20. Fuse plugs in aircraft tyres ...Question Number. 20. Fuse plugs in aircraft tyres are for over temperature protection.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-64944831094271979092023-05-11T22:32:05.835-07:002023-05-11T22:32:05.835-07:00Hi is this page still active? do you got any mock ...Hi is this page still active? do you got any mock questions for B1-11d Aeroplane Systems thank you<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-74990927546428386352021-10-07T00:56:37.884-07:002021-10-07T00:56:37.884-07:00TP-Link CAP1200 AC1200 in UAE, Wireless Dual Band ...TP-Link CAP1200 AC1200 in UAE, Wireless Dual Band in UAE, Gigabit Ceiling Mount Access Point in UAE<br />https://gccgamers.com/tp-link-cap1200.html<br />TP-Link CAP1200 in UAE, Safe Shopping Multiple Payment Options Express Delivery GCC Gamers Moneyback Guarantee.<br />1633593371433-8Nikky chalhttps://www.blogger.com/profile/10015716750305011499noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-19446150316927679122020-02-04T14:48:51.966-08:002020-02-04T14:48:51.966-08:00Question Number. 72. If a constant torque is appli...Question Number. 72. If a constant torque is applied to a gyroscope, the rate of precession. Option A. is unaffected by changes in rotor speed. Option B. increases with a higher rotor speed. Option C. increases with a lower rotor speed. Correct Answer is. increases with a lower rotor speed. Explanation. Flight Instruments and Automatic Flight Control Systems, David Harris Page 33.<br /><br />The same wrong interpretation as with the earlier question (number 70) about precession. The higher the rotational speed, the greater the precession for the same torque applied about an axis that is 90 degrees to that of the spinning mass.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-71582114863284602342020-02-04T14:32:48.991-08:002020-02-04T14:32:48.991-08:00Question Number. 70. What effect on the rate of pr...Question Number. 70. What effect on the rate of precession will a change of gyro rotor speed have?. Option A. No effect. Option B. Decrease the rotor speed, decrease the rate of precession. Option C. Increase the rotor speed, decrease the rate of precession. Correct Answer is. Increase the rotor speed, decrease the rate of precession. Explanation. Flight Instruments and Automatic Flight Control Systems, David Harris Page 33.<br /><br />Wrong! At zero speed for example, how much precession do you have? The higher the rotation speed, the higher the precession effects! The correct answer is: Deacrease in rotor speed, decrease in precession.<br /><br />You can simply confirm this by testing it in many ways, one can simply be as taking an angle grinder and seeing how the precession tends to increase/decrease compared to the disc's speed.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-55194730679779742352020-02-03T05:53:17.505-08:002020-02-03T05:53:17.505-08:00Question Number. 60. How does a machmeter work?. O...Question Number. 60. How does a machmeter work?. Option A. Indicated airspeed / temperature. Option B. True airspeed and speed of sound. Option C. True airspeed / indicated airspeed. Correct Answer is. True airspeed and speed of sound. Explanation. Kermode Mechanics of Flight 10th edition p339, and Flight Instruments and Automatic Flight Control, Harris Page 20.<br /><br />Speed of sound?! Is that what a machmeter shows you? If Kermode Mechanics of Flight 10th edition says that, then you know where you shouldn't learn from...! First of all, from all of the 3 answers, none is correct. Secondly, the speed of sound is not indicated on any instrument of any aircraft. The Mach number is a ratio between the true airspeed and sound speed at a given altitude and static or total air temperature. The sound speed is taken from a matrix/table inputted to a computer which then determines the Mach according to altitude and possibly temperature (some older machmeters use just the altitude for reference).Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-86505912499019553662020-02-03T05:34:41.238-08:002020-02-03T05:34:41.238-08:00Question Number. 51. An RMI has inputs from VOR an...Question Number. 51. An RMI has inputs from VOR and. Option A. a remote compass input. Option B. an azimuth gyro. Option C. no other sources. Correct Answer is. an azimuth gyro. Explanation. Aircraft Instruments and Integrated Systems Pallett Page 194.<br /><br />Not all the systems are designed the same way! For instance, on the 737, the RMI (which is not a primary horizontal navigation instrument) takes it's directional data from the magnetic compass.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-61739101405577929722020-02-03T05:20:19.647-08:002020-02-03T05:20:19.647-08:00Question Number. 41. Which pitot probe provides in...Question Number. 41. Which pitot probe provides information to the captains instruments?. Option A. Upper. Option B. Lower. Option C. Both. Correct Answer is. Upper. Wrong answer! Both the primary and auxiliary pitot (the same type of pitot that constantly feeds info in parallel to the primary). And yes, this info can be found on 737 technical data. Verify it correctly!Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-45567986073068008992020-02-03T05:19:24.406-08:002020-02-03T05:19:24.406-08:00This comment has been removed by the author.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-24679845187386400552020-02-03T04:59:53.875-08:002020-02-03T04:59:53.875-08:00Question Number. 23. Alpha vane signal could be fe...Question Number. 23. Alpha vane signal could be fed to _________________ ________________ when close to stall. Option A. flap position. Option B. fast/slow switch. Option C. thrust levers. Correct Answer is. thrust levers.<br /><br />Nothing more wrong! The critical angle of attack is affected by the deployment of leading/trailing edge devices, not by engines thrust. During a stall, the last thing you want to do is to apply more thrust. That's useless and pointless at the same time. You want to lower the AoA below critical. Even if you'd have a thrust force 10 times higher than the plane's weight, as long as the AoA is still above critical, you have no control. Even if you have more than needed lift throughout the stall (stall doesn't mean no lift, but about half the maximum), without control, you have nothing. The flaps (can be leading or trailing edge devices) change the critical AoA value. Leading edge flaps deployment slightly increase the critical AoA (good thing) by usually 1 degree, while the trailing edge flaps deployment reduce the critical AoA by a couple of degrees (bad thing). Although not present within the answers, the leading edge slats deployment have the ability (depends on type) to increase the critical angle of attack by as much as 12 degrees.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-72426944971147102172020-02-03T04:32:11.248-08:002020-02-03T04:32:11.248-08:00Question Number. 16. The vacuum system gauge reads...Question Number. 16. The vacuum system gauge reads 5 inches of mercury. This is from. Option A. zero and minus. Option B. ambient and minus. Option C. zero and positive. Correct Answer is. ambient and minus. Explanation. The 5 inches Hg refers to the 'suction' from ambient.<br /><br />Wrong physical interpretation and thus, wrong answer!<br /><br />Even for suction conditions, you still have absolute pressure! The absolute pressure is always scaling from zero to any positive value. Between "ambient" and any other lower pressure reference, you have what is called "suction", but this doesn't mean that the pressure itself is negative. The pressures are always positive. You can't have a pressure measurement lower than void, for example. A reference pressure, such as gauge and differential pressures can be mathematically taken as negative, but as the question itself mentions 5hg of mercury, which is taken as the absolute measured pressure, it means that the pressure is measured between zero and positive.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-5623482138673371312020-02-01T08:53:47.513-08:002020-02-01T08:53:47.513-08:00Question Number. 2. Track altitude in a radio alti...Question Number. 2. Track altitude in a radio altimeter system begins at. Option A. 2 500 ft radio alt. Option B. 1 000 ft radio alt. Option C. 10 000 ft radio alt. Correct Answer is. 2 500 ft radio alt.<br /><br />Although we know that below 2500ft the radio altimeter starts feeding data, but the question says "begins", yet it doesn't tell whether it begins towards lower or higher than the given threshold variants. This particular problem of incomplete questions is quite frequent and although you might know how a system works and therefore find the correct answer, your hands are tied due to not being able to correctly interpret the question!Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-52265905233556306592020-01-30T19:21:37.236-08:002020-01-30T19:21:37.236-08:00Question Number. 99. Rate of change of cabin press...Question Number. 99. Rate of change of cabin pressure is. Option A. selected by the pilot and controlled by the pressure controller. Option B. selected by the pilot and controlled by the spill valve. Option C. automatic. Correct Answer is. selected by the pilot and controlled by the pressure controller.<br /><br />You cannot "select" the rate of change of cabin pressure. The rate of change is fully automatic and governed by the controller. Correct answer: Automatic!Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-9476825876267231012020-01-30T19:17:45.608-08:002020-01-30T19:17:45.608-08:00Question Number. 98. One of the principles of cool...Question Number. 98. One of the principles of cooling employed in an air cycle system is. Option A. by compression of ambient air across a turbine. Option B. by surface heat exchange in the C.A.U. Option C. conversion of heat energy to mechanical energy in the C.A.U. Correct Answer is. conversion of heat energy to mechanical energy in the C.A.U. Explanation. A&P Technician Airframe Textbook Page 770 Fig 16-34.<br /><br />No answer is correct! The only right answer would be that the cooling takes place across the turbine through the expansion of the gas, but no such variant exists as an answer.<br /><br />Saying that cooling is achieved by converting heat energy into mechanical energy is wrong! The heat itself doesn't do anything to provide mechanical energy! If pressure has been accumulated as a result of heating, we can say that the pressure energy will be converted into a mechanical one, not by the heat! The pressure energy of the gas (no matter how hot or cold it is) can be converted either into a higher or lower heat energy by further compression or expansion, while the pressure energy may also be converted into mechanical energy to turn a turbine or simply expand through an expansion device (and cooling obviously occurs) without any conversion to mechanical energy, which is a secondary effect.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-51044829397868215502020-01-30T17:16:04.961-08:002020-01-30T17:16:04.961-08:00Question Number. 53. A cold air unit allows for ca...Question Number. 53. A cold air unit allows for cabin temperatures to be. Option A. same as ambient temperature, despite compression heating. Option B. lower than ambient air temperature despite compression heating. Option C. a little more than ambient air temperature. Correct Answer is. a little more than ambient air temperature.<br /><br />Incomplete question, as it isn't always the same case! It all depends on the outside air temperature. If the outside air temp is lower than desired, yes, some heat is added to the cold air unit, if higher outside temperatures occur, the cold air unit will deliver cooler air (hence it's main purpose's name). An incomplete question won't help selecting the right answer!Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-40666010647911471522020-01-28T08:27:56.321-08:002020-01-28T08:27:56.321-08:00Question Number. 1. Construction such as horn bala...Question Number. 1. Construction such as horn balance and inset hinge balance installed on control surface assembly. Option A. serves as a 'servo' system of balance. Option B. has same effect of the balance tab. Option C. is meant to trim CG of control surfaces. Correct Answer is. has same effect of the balance tab.<br /><br />Wrong!<br /><br />The inset hinge or horn balance designs help REDUCE the hinge torsion effort needed to counter the aerodynamic forces and as such reduce the required stick effort to deflect the flight controls.<br /><br />The balance tab on the other hand is designed to deflect in opposite direction to the flight control (elevator, rudder, aileron) at a needed deflection ratio in order to bring the torsional moment in the hinge to zero (or as close as possible), as the designers don't want to allow continuous hinge efforts throughout the flight, especially at higher speeds. One such example of a balance tab is the aerodynamic trim tab that is usually found on low speed aircraft, such as gliders and other general aviation airplanes, but unlike the balance tab which is automatically controlled (by a ratio mechanism) when for example the elevator moves, the aerodynamic trim tab is manually used to relieve the stick and control surface hinge efforts.<br /><br />The most appropriate answer, yet still not correct by definition, would be to say that the inset hinge and horn balance act more like a "servo" system of balance, as they aerodynamically assists the pilot to move the control with a reduced effort, while the balance tab completely reduces the effort when used in conjunction with hydraulically actuated and/or automated flight controls to keep the hinge free of efforts at high speeds.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-31499111046352977242020-01-05T12:35:45.108-08:002020-01-05T12:35:45.108-08:00This comment has been removed by the author.Orsonhttps://www.blogger.com/profile/17770782941890969293noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-4247897805658521152019-08-21T03:15:40.486-07:002019-08-21T03:15:40.486-07:00Question Number. 58. Vortex generators are fitted ...Question Number. 58. Vortex generators are fitted to:<br />Move transition point forwards??!<br /><br />Nothing more wrong! The vortex is a high energy airflow which sustains a high momentum within the boundary layer and keeping it from growing in thickness and greatly delays the flow separation, thus significantly increasing the local stall AoA. A forward transition means only that the rest of the chord back from the transition point is either turbulent or completely separated (aka stall)!<br /><br />Learn some basic aerodynamics folks!Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-55321635767663386392019-06-13T01:01:27.305-07:002019-06-13T01:01:27.305-07:00Howdy, i read your blog daftar m8bet from time to ...<br />Howdy, i read your blog <a href="https://sky99asia.com/m8bet/" rel="nofollow">daftar m8bet</a> from time to time and i own a similar one and i was just curious if you get a lot of spam feedback? If so how do you protect against it, any plugin or anything you can suggest? I get so much lately it's driving me crazy so any help is very much appreciated. The Gaming Club bears a license from the management of Gibraltar, and claims to be one of a pick few casinos that have a license from the Gibraltar government. 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"...The aileron trimmer control ...Question 8:<br /><br />"...The aileron trimmer control to the left aileron trim tab in the cockpit would be." This sentence is incoherent or not understandable! You don't have an aileron trim tab in the cockpit! You have a trimming knob which may electrically/hydraulically command the trim tab which is attached to the commendable surface. The correct answer makes perfect sense, but the question needs reformulated.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-51918976338387229172018-05-31T11:15:23.609-07:002018-05-31T11:15:23.609-07:00At question 6:
"With respect to differential...At question 6:<br /><br />"With respect to differential aileron control, which of the following is true?".<br /><br />The answering variants are ambiguous for not letting you know what type of angle is there the talk about (angle of attack or angle of deflection), therefore you would have 2 correct answers, one referring to the AoA and the other to the surface deflection.Maverick Su-35Shttps://www.blogger.com/profile/08293572590791979512noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-13310601683084005752017-08-26T11:55:04.517-07:002017-08-26T11:55:04.517-07:00can I get the latest one for module 11can I get the latest one for module 11Anonymoushttps://www.blogger.com/profile/07013438249281762044noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-7674986834464541882017-02-25T00:48:44.325-08:002017-02-25T00:48:44.325-08:00Can you make it PDF version ?Can you make it PDF version ?Imtiajur Rahmanhttps://www.blogger.com/profile/13867884014995135586noreply@blogger.comtag:blogger.com,1999:blog-5766813906411212155.post-18706822103569036212016-05-28T05:08:04.332-07:002016-05-28T05:08:04.332-07:00Can anyone help me in sending new question for Mod...Can anyone help me in sending new question for Module 11AAnonymoushttps://www.blogger.com/profile/04421400398770641264noreply@blogger.com