Vayudoot Aviation

1. VNO is the maximum speed

At which the flight controls can be fully deflected.

with flaps extended in landing position.

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

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

Vertical speed indicator & ASI only.

Altimeter &; VSI only.

Airspeed indicator, VSI and altimeter.

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

airspeed indicator only.

altimeter only.

vertical speed indicator only.

4. Dynamic pressure is

Pitot pressure minus static pressure

Density and static pressure

Pitot pressure plus static pressure

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

Under-read, over-read

Over-read, under-read

Under-read, under-read

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

static pressure

total prssure

dynamic pressure

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

VSI for the lower limit and VFE for the upper limit

VSO for the lower limit and VLE for the upper limit

VSO for the lower limit and VFE for the upper limit

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

The differential pressure increases with the square of the airspeed

The differential pressure decreases with the square of the airspeed

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

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

position, density, instrument, compressibility, manoeuvre induced

instrument and compressibility only

instrument, pressure and temperature only

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

React like an altimeter

read a little low

freeze at zero

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

higher than the true airspeed (TAS)

independent of the true airspeed (TAS)

equal to the true airspeed (TAS)

12. The Airspeed Indicator measures

Static pressure changes

Differential pressure

Static pressure

13. 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

14. Indicated airspeed corrected for position error is

Equivalent air speed

Calibrated airspeed.

Ground speed.

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

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

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

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

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

Two.

Three.

Four.

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

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

instrument error, position error.

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

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

airspeed indicator, altimeter and vertical speed indicator

airspeed indicator only

vertical speed indicator only

19. The airspeed indicator is calibrated to

ISA at mean sea level

ISA at the height the aircraft is flying

the full ISA

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

progressively under read.

progressively over read.

remain fixed.

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

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

over-read

read zero

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

Uder-read

Will read correct

Over-read

23. Which of the following is most dangerous?

Static blocked during descent (over - read)

Pitot blocked during climb.

Pilot blocked during descent

Question Bank

Questions for R* BL ASI

Question Bank

Questions for R* B*L* ASI

Questions for R* BL ASI