Vayudoot Aviation

1. Dynamic pressure sensed by or pitot tube : Today's airspeed indicators (calibrated to the Saint-Venant formula), Indicate, in the absence of static (and instrumental) error

Is not affected by the density of surround up air.

Increases if air density increases

Increases if air density decreases

2. Compressibility Error requires a.... (i) correction because it is .... (ii) of ....(iii) pressure. It gives..... (iv):

(i) negative (ii) an increase (iii) dynamic (iv) EAS

(i) positive (ii) an increase (iii) dynamic (iv) TAS

(i) negative (ii) a decrease (iii) static (iv) EAS

3. Dynamic pressure is

Pitot pressure minus static pressure

Density and static pressure

Pitot pressure plus static pressure

4. The limits of the white scale of an airspeed indicator are

VSO for the lower limit and VLE for the upper limit

VSI for the lower limit and VFE for the upper limit

VSO for the lower limit and VFE for the upper limit

5. If the static source to an airspeed indicator (ASI) becomes blocked during a descent the instrument will

over-read

read zero

continue to indicate the speed applicable to that at the time of the blockage

6. If static source of an a/c is blocked during climb. Altimeter ________ and ASI will _____________.

Under-read, under-read

Over-read, under-read

Under-read, over-read

7. A pilot tube covered by ice which blocks the ram air inlet will affect the following Instrument (s)

vertical speed indicator only

airspeed indicator only

airspeed indicator, altimeter and vertical speed indicator

8. If static source of ASI is blocked during level flight, ASI will

Uder-read

Will read correct

Over-read

9. A pilot tube covered by ice which blocks the ram air inlet will affect the following instrument (s)

airspeed indicator only.

vertical speed indicator only.

altimeter only.

10. If the static line to the ASI becomes blocked during a climb, the ASI reading will

remain fixed.

progressively over read.

progressively under read.

11. The errors to which the mach meter is subject are

instrument error, position error, density error and manoeuvre induced error.

instrument error, position error.

instrument error, position error, compressibility error and manoeuvre induced error.

12. In a standard atmosphere and at the sea level, the calibrated airspeed (CAS) is

equal to the true airspeed (TAS)

independent of the true airspeed (TAS)

higher than the true airspeed (TAS)

13. Indicated airspeed corrected for position error is

Equivalent air speed

Ground speed.

Calibrated airspeed.

14. The airspeed indicator is calibrated to

ISA at mean sea level

ISA at the height the aircraft is flying

the full ISA

15. The Airspeed Indicator measures

Static pressure changes

Static pressure

Differential pressure

16. The reason for having a square-law compensation in the airspeed-indicator mechanism is

The ram air pressure decreases with the square-root of the airspeed

The differential pressure decreases with the square of the airspeed

The differential pressure increases with the square of the airspeed

17. If the static tube is clogged, which instrument(s) is/are affected?

Airspeed indicator, VSI and altimeter.

Altimeter &; VSI only.

Vertical speed indicator & ASI only.

18. VNO is the maximum speed

At which the flight controls can be fully deflected.

not to be exceeded except in still air and with caution.

with flaps extended in landing position.

19. A pilot blockage of both the ram air input and the drain hole with the static port open causes the airspeed indicator to

read a little low

React like an altimeter

freeze at zero

20. The combined Mach meter / ASI is subject to the following errors

instrument, pressure and temperature only

instrument and compressibility only

position, density, instrument, compressibility, manoeuvre induced

21. Which of the following is most dangerous?

Static blocked during descent (over - read)

Pilot blocked during descent

Pitot blocked during climb.

22. The pressure measured at the forward facing orifice of a pitot tube is the

dynamic pressure

total prssure

static pressure

23. How many disphragms are present in a basic Mach meter?

Two.

Four.

Three.

Question Bank

Questions for R* BL ASI

Question Bank

Questions for R* B*L* ASI

Questions for R* BL ASI