Vayudoot Aviation

1. Static vents are usually fitted to both sides of the aircraft fuselage. This will:

balance out errors caused by side slipping or yawing.

reduce the position error.

enable a greater number of instruments to be fitted.

require a calibration card for each static vent.

2. Which of the following instruments require inputs of both pitot and static pressure

airspeed indicator only.

airspeed indicator, vertical speed indicator, altimeter.

airspeed indicator and machmeter.

airspeed indicator, machmeter and vertical speed indicator.

3. Pressure heads supply data to the following instruments

altimeters, ASI's, VSI's, machmeters, air data computers.

standby instruments only, when air data computers fitted.

air data computers, compasses, altimeters, and ASI's.

all the above plus air driven gyros.

4. A static vent is used to measure

pitot excess pressure.

dynamic pressure minus pitot excess.

dynamic pressure plus pitot excess.

atmospheric pressure.

5. Where an alternate static source is fitted, use of this source usually leads to:

a lower pressure error than with normal sources.

an increase in position error.

no change in position error.

a temporary increase in lag error.

6. Turbulent flow around a pressure head will cause:

95% increase in manoeuvre induced error.

density error.

95% of pressure error.

an increase in the dynamic pressure

7. A pressure head is subject to the following errors:

position, manoeuvre induced, density.

position, manoeuvre induced.

position, manoeuvre induced, instrument.

position, manoeuvre induced, temperature.

8. Position error

may be reduced by the fitting of static vents.

will depend solely on the attitude of the aircraft.

will usually decrease with an increase in altitude.

will usually decrease as the aircraft approaches the speed of sound.

9. Manoeuvre induced error

is combined with instrument and position error on a correction card.

lasts for only a short time at high altitude.

is caused by transient pressure changes at static vents.

is likely to be greatest when yawing after engine failure.

10. A pitot head is used to measure:

dynamic pressure.

static plus dynamic pressure.

static pressure.

dynamic minus static pressure.

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