Results
Q1. The reading of a Mach indicator is independent of:
the outside temperature
Q2. If the ambient temperature decreases, the TAS of an aircraft cruising at a constant Mach number will:
decrease because local speed of sound decreases
Q3. At a constant calibrated airspeed (CAS), the Mach number:
increases when the altitude increases
Q4. If the outside temperature at 35 000 feet is -40°C, the local speed of sound is:
596 kt.
Q5. The Mach number is a function of the:
Absolute temperature of the air.
Q6. A VMO-MMO warning device consists of an alarm connected to:
a barometric aneroid capsule subjected to a static pressure and an airspeed sensor subjected to a dynamic pressure.
Q7. The Mach number is:
the ratio of the aircraft true airspeed to the sonic velocity at the altitude considered
Q8. During a straight and uniform climb, the pilot maintains a constant calibrated airspeed (CAS):
The Mach number increases and the true airspeed (TAS) increases.
Q9. Indication of Mach number is obtained from:
Indicated speed and altitude using a speed indicator equipped with an altimeter type aneroid
Q10. How many diaphragms are present in a basic Mach meter?
Two.
Q11. An aircraft is flying at an TAS of 310 Kt at FL290, temperature deviation is -6°C. The local speed of sound is:
583 Kt
Q12. Machmeter readings are subject to:
position pressure error
Q13. The mach number is the:
true airspeed (TAS) divided by the local speed of sound
Q14. At a constant Mach number, the calibrated air speed (CAS):
decreases when the altitude increases
Q15. The velocity of sound at the sea level in a standard atmosphere is:
661 kt.
Q16. Sound propagates through the air at a speed which only depends on:
temperature.
Q17. The principle of the Mach indicator is based on the computation of the ratio:
(Pt-Ps) to Ps
Q18. What is the Mach number?
It is the ratio of the aircraft’s true airspeed to the local speed of sound of the air in which the aircraft is moving.
