Dirty dozen in aviation

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Taxiing Aircraft

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Taxiing Aircraft As a general rule, only rated pilots and qualified airframe and powerplant (A&P) technicians are authorized to start, run up, and taxi aircraft. All taxiing operations are performed in accordance with applicable local regulations. Figure 1 contains the standard taxi light signals used by control towers to control and expedite the taxiing of aircraft. The following section provides detailed instructions on taxi signals and related taxi instructions.  Lights  Meaning Flashing green  Cleared to taxi Steady red  Stop Flashing red  Taxi clear of runway in use Flashing white  Return to starting point Alternating red and green  Exercise extreme caution Figure 1. Standard taxi light signals Taxi Signals Many ground accidents have occurred as a result of improper technique in taxiing aircraft. Although the pilot is ultimately responsible for the aircraft until the engine is stopped, a taxi signalman can assist the pilot around the flight li...
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Easa module 1 math mcq 1

The surface area of a cone whose flat is 10 cm and diameter is 8 cm is a) 80 p  Ans. b) 40 p c) 120 p (A + B)4 is (A + B) 2  Ans. a) (A + B) 2 b) A + B c) (A + B) 6 An equilateral triangle has a) 2 equal sides b) no equal sides  Ans. c) 3 equal sides 4 3/8 – 2 1/4 + 1/8 = a) 2 1/8 b) 2 1/2  Ans. c) 2 1/4 11/16 + 5/8 = a) 55/128  Ans. b) 21/16 c) 10/11 Given 43 - x = 21, find the value of x  Ans. a) 43 - 21 b) 43 + 21 c) 43 / 21 ¾ multiplied by 0.82 is equal to a) 1.23  Ans. b) 0.615 c) 2.46 7/6 can be expressed as a) 2.6 b) 1.6  Ans. c) 1.166 The ratio of 6:5 can be expressed as a) 20: 25  Ans. b) 24: 20 c) 10: 16 In a right-angled triangle the other two angles are both 45°. The length of the opposite side can be calculated by  Ans. a) sin 45° x length of the hypotenuse side of the triangle b) cos 45° x length of the adjacent side of the triangle c) sin 45° x length of the adjacent side of the triangle Calculate (+ 3) - (- 4) a) -1 ...
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EASA module 4 Electronic Fundamentals mcq 5

Angular displacement of the control coils with respect to the reference coils in a two phase induction motor are a) 0o, 180o Ans b) 90o, 270o c) 90o, 120o * A two phase induction motor used in a servomechanism a) will always require a starter Ans b) is self starting under light loads c) runs with no slip * A servomotor having only a tachogenerator as a feedback device will a) vary its speed with input error voltage Ans b) have a constant speed for any given input voltage c) null out at a position dependant upon input error voltage * A hysteresis servo motor is used in a servomechanism because Ans a) it has good starting characteristics b) good speed/voltage relationship c) low inertia * The null position of a torque synchro system is when Ans a) the TX and TR rotors are parallel to each other b) the TX and TR rotors are 90o to each other c) the TX and TR rotors are 120o to each other * Reversal of two of the stator connections on a torque synchro receiver would cause a) the transmitter...
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