Vayudoot Aviation

1. The airspeed indicator is calibrated to

ISA at mean sea level

the full ISA

ISA at the height the aircraft is flying

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

remain fixed.

progressively under read.

progressively over read.

3. 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

vertical speed indicator only

airspeed indicator only

4. 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 VFE for the upper limit

VSO for the lower limit and VLE for the upper limit

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

Three.

Two.

Four.

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

Altimeter &; VSI only.

Airspeed indicator, VSI and altimeter.

Vertical speed indicator & ASI only.

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

dynamic pressure

total prssure

static pressure

8. Indicated airspeed corrected for position error is

Calibrated airspeed.

Ground speed.

Equivalent air speed

9. 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.

altimeter only.

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

position, density, instrument, compressibility, manoeuvre induced

instrument, pressure and temperature only

instrument and compressibility only

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, compressibility error and manoeuvre induced error.

instrument error, position error.

12. 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

Increases if air density increases

Increases if air density decreases

Is not affected by the density of surround up air.

13. Dynamic pressure is

Pitot pressure minus static pressure

Pitot pressure plus static pressure

Density and static pressure

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

freeze at zero

React like an altimeter

read a little low

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

The differential pressure decreases with the square of the airspeed

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

The differential pressure increases with the square of the airspeed

16. Which of the following is most dangerous?

Pitot blocked during climb.

Pilot blocked during descent

Static blocked during descent (over - read)

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

Will read correct

Over-read

Uder-read

18. VNO is the maximum speed

with flaps extended in landing position.

At which the flight controls can be fully deflected.

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

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

Over-read, under-read

Under-read, over-read

Under-read, under-read

20. The Airspeed Indicator measures

Static pressure

Static pressure changes

Differential pressure

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

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

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

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

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

equal to the true airspeed (TAS)

higher than the true airspeed (TAS)

independent of the true airspeed (TAS)

23. 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

Question Bank

Questions for R* BL ASI

Question Bank

Questions for R* B*L* ASI

Questions for R* BL ASI