Results
Q1. The vertical speed indicator (VSI) is fed by:
static pressure
Q2. The Vertical Speed Indicator (VSI) gives:
Immediate trend information and stable climb or descent information after 6 to 12 seconds (depending on type).
Q3. How does lag error in an Instantaneous VSI (IVSI) compare to that in a normal VSI?
It is virtually eliminated by using an acceleration pump.
Q4. The vertical speed indicator reads:
The differential pressure between the capsule pressure and the case pressure.
Q5. What does a vertical speed indicator actually measure?
The rate of pressure change.
Q6. The response time of a vertical speed detector may be increased by adding a:
correction based on an accelerometer sensor.
Q7. The operating principle of the vertical speed indicator (VSI) is based on the measurement of the rate of change of:
Static pressure
Q8. Aircraft with pressurized cabin in flight: When switching to the alternate static pressure source, the pointer of the Vertical Speed Indicator:
indicates a climb, then settles down and reads incorrectly.
Q9. The vertical speed indicator of an aircraft flying at a true airspeed of 100 kt, in a descent with a slope of 3 degrees, indicates:
500 ft/min.
Q10. The purpose of the IVSI is to:
give an instantaneous indication of the aircraft’s vertical speed when a climb or descent has been initiated.
Q11. Which statement is correct for the Vertical Speed Indicator (VSI) during a climb:
The pressure inside the capsule drops faster than the pressure inside the case.
Q12. Within a temperature range of +50° and -20° C the VSI is accurate to within limits of:
+/-200 ft/min.
