IFR written exam

GL06

What does the memory aid “step on the ball” remind you to do?

Determine which rudder pedal to press in either a slip or a skid

The attitude indicator senses movement about the aircraft’s

longitudinal and lateral axes

What is the purpose of the heading indicator?

It is the purpose of the heading information.

With what other instrument must you periodically align the heading indicator?

magnetic compass

What two power sources do gyroscopic instrument typically use?

electrical and vacuum

The compass lubber line is the vertical mark that indicates the

heading

The angular difference between north and magnetic north

magnetic variation

What do you use to determine the proper deviation correction in your aircraft?

Compass correction card

What makes the compass susceptible to errors in in-flight turbulence?

The freedom of movement necessary for the compass to orient itself to magnetic north

What is the primary cause of magnetic dip?

Compass needle trying to dip toward the magnetic poles

Acceleration and deceleration errors are fluctuations in the compass during changes in?

speed

In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the west if

a right turn is entered from north heading.

On a digital display, the turn coordinator is combined with

attitude indicator

What do the various color-codes represent on a digital airspeed indicator

various airspeed limitations

Where does the barometric setting appear on a digital altimeter?

Bottom box

What is the minimum climb or decent rate that the digital vertical speed indicator pointer displays?

100 feet per minute

What do the outriggers on the digital attitude indicator represent?

wingtips

What replaces the ball on a digital turn coordinator?

a trapezoid

What digital instrument corresponds to the analog heading indicator?

Horizontal situation indicator

Assuming that all other variables remain constant, what effect does a decrease in temperature have on atmospheric pressure?

Atmospheric pressure decreases

Which flight instruments are dependent on the pitot-static system?

Airspeed indicator, vertical speed indicator, altimeter

The static port senses what type of pressure?

Atmospheric

The airspeed indicator compares what two pressures to determine air speed?

Ram air pressure and static air pressure

What is the V-speed for maximum structural cruising speed?

VNO

What corrections are applied to calibrated airspeed to determine true airspeed?

Altitude and temperatures

What multiple does the longest needle on the altimeter indicate

Hundreds of feet

What types of altitude does the altimeter display?

Indicated

There are a variety of situations that can occur that would give false altitude indications. What are three of these situations?

Failing to keep the altimeter set to the local altimeter setting, flying from high pressure to low pressure, and monitoring the temperature.

What is the most common altimeter error?

A failure to keep the altimeter set to the local altimeter setting

When you fly into an area of higher pressure and the aircraft’s altimeter setting is set lower than the local altimeter setting?

true altitude will be higher than indicated altitude.

How do temperature variations affect true altitude?

At a warmer temperature, indicated altitude is lower than true altitude.

The VSA displays a rate of climb or descent in what until of measure?

Feet per minute

What usually indicates a blocked pitot tube, static port, or both?

Incorrect pitot-static instrument readings

What might cause the indicated airspeed to vary with a change in altitude?

The pitot system becomes completely blocked, but the static system remains clear.

What can cause the airspeed indicator to operate inaccurately?

The static system is blocked but the pitot tube is clear.

Where doe the spinning gyro display the aircraft movement that it senses?

Instrument face

What component of the gyroscope enable s it to rotate freely in any direction as the aircraft moves?

Gimbal rings

What does precession cause?

Slow instrument drifting and minor erroneous indications

What are the two basic components of the turn coordinator?

Indicator and inclinometer