Avex Questions | Temperature and Pressure Measurement

Question 1

1. TAT is equal to RAT when:
   (a) the aircraft is operating in ISA conditions at sea level,
   (b) the aircraft is operated at speeds above Mach 0.3,
   (c) at any temperature where the recovery factor is less than 1.00,
   (d) the recovery factor of the temperature sensor is equal to 1.00.

Answer 1

d

Question 2

2. TAT is:
   (a) equal to SAT + ram rise,
   (b) equal to RAT - ramn rise,
   (c) always the same as RAT in ISA conditions at any flight level,
   (d) the temperature read from the temperature gauge minus the recovery factor

Answer 2

a

Question 3

3. If the TAS is 200 kts the ram rise is approximately:
   (a) 6°,
   (b) 5°,
   (c) 4°
   (d) 2

Answer 3

c

Question 4

4. The operating principle of the direct reading thermometer is based on:
   (a) the pressure of air against a bi-metalic spring, the compression of which which drives the needle
   of the indicator,
   (b) the different coefficients of expansion of two different metals
   (C) the measurement of the electrical resistance between two different metals,
   (d) the similar Coefficients of expansion of two different metals.

Answer 4

b