Private Pilot Study Unit 2: Airplane Instruments, Engines, and Systems

In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if:
a. An aircraft is decelerated while on an east or west heading.
b. A left turn is entered from a west heading.
c. An aircraft is accelerated while on an east or west heading.

C

During flight, when are the indications of a magnetic compass accurate?
a. Only in straight-and-level unaccelerated flight.
b. As long as the airspeed is constant.
c. During turns if the bank does not exceed 18*.

A

Deviation in a magnetic compass is caused by the:
a. Presence of flaws in the permanent magnets of the compass.
b. Difference in the location between true north and magnetic north.
c. Magnetic fields within the aircraft distorting the lines of magnetic force.

C

Deviation in a magnetic compass is caused by the:
a. Northerly turning error.
b. Certain metals and electrical systems within the aircraft.
c. The difference in location of true north and magnetic north.

B

In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate:
a. A turn momentarily.
b. Correctly when on a north or south heading.
c. A turn toward the south.

B

In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the west if:
a. A left turn is entered from a north heading.
b. A right turn is entered from a north heading.
c. An aircraft is accelerated while on a north heading.

B

In the Northern Hemisphere, the magnetic compass will normally indicate a turn toward the south when:
a. A left turn is entered from an east heading.
b. A right turn is entered from a west heading.
c. The aircraft is decelerated while on a west heading.

C

In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the east if:
a. An aircraft is decelerated while on a south heading.
b. An aircraft is accelerated while on a north heading.
c. A left turn is entered from a north heading.

C

What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a south heading in the Northern Hemisphere?
a. The compass will initially indicate a turn to the left.
b. The compass will indicate a turn to the right, but at a faster rate than is actually occurring.
c. The compass will remain on south for a short time, then gradually catch up to the magnetic heading of the airplane.

B

The pitot system provides impact pressure for which instrument?
a. Altimeter
b. Vertical-speed indicator
c. Airspeed indicator

C

Which instrument will become inoperative if the pitot tube becomes clogged?
a. Altimeter
b. Vertical speed
c. Airspeed

C

If the pitot tube and outside static vents become clogged, which instruments would be affected?
a. The altimeter, airspeed indicator, and turn-and-slip indicator.
b. The altimeter, airspeed indicator, and vertical speed indicator.
c. The altimeter, atitude indicator, and turn-and-slip indicator

B

Which instrument(s) will become inoperative if the static vents become clogged?
a. Airspeed only
b. Altimeter only
c. Airspeed, altimeter, and vertical speed

C

What does the red line on an airspeed indicator represent?
a. Maneuvering speed
b. Turbulent or rough-air speed
c. Never-exceed speed

C

What is an important airspeed limitation that is not color coded on airspeed indicators?
a. Never-exceed speed
b. Maximum structural cruising speed
c. Maneuvering speed

C

What is absolute altitude?
a. The altitude read directly from the altimeter.
b. The vertical distance of the aircraft above the surface.
c. The height above the standard datum plane.

B

What is true altitude?
a. The vertical distance of the aircraft above sea level.
b. The vertical distance of the aircraft above the surface.
c. The height above the standard datum plane.

A

What is density altitude?
a. The height above the standard datum plane.
b. The pressure altitude corrected for nonstandard temperature.
c. The altitude read directly from the altimeter.

B

Under what condition is pressure altitude and density altitude the same value?
a. At sea level, when the temperature is 0*F.
b. When the altimeter has no installation error.
c. At standard temperature.

C

Under what condition is indicated altitude the same as true altitude?
a. If the altimeter has no mechanical error.
b. When at sea level under standard conditions.
c. When at 18,000 feet MSL with the altimeter set at 29.92.

B

Under which condition will pressure altitude be equal to true altitude?
a. When the atmospheric pressure is 29.92" Hg.
b. When standard atmospheric conditions exist.
c. When indicated altitude is equal to the pressure altitude.

B

What is pressure altitude?
a. The indicated altitude corrected for position and installation error.
b. The altitude indicated when the barometric pressure scale is set to 29.92.
c. The indicated altitude corrected for nonstandard temperature and pressure.

B

Altimeter setting is the value to which the barometric pressure scale of the altimeter is set so the altimeter indicates:
a. Calibrated altitude at field elevation.
b. Absolute altitude at field elevation.
c. True altitude at field elevation.

C

If it is necessary to set the altimeter from 29.15 to 29.85, what change occurs?
a. 70-foot increase in indicated altitude.
b. 70-foot increase in density altitude.
c. 700-foot increase in indicated altitude.

C

If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication?
a. Altimeter will indicate .15" Hg higher
b. Altimeter will indicate 150 feet higher
c. Altimeter wil indicate 150 feet lower

C

If a flight is made from an area of low pressure into an area of high pressure without the altimeter setting being adjusted, the altimeter will indicate:
a. the actual altitude above sea level
b. higher than the actual altitude above sea level
c. lower than the actual altitude above sea level

C

If a flight is made from an area of high pressure into an area of lower pressure without the altimeter setting being adjusted, the altimeter will indicate:
a. lower than the actual altitude above sea level
b. higher than the actual altitude above sea level
c. the actual altitude above sea level

B

Which condition would cause the altimeter to indicate a lower altitude than true altitude?
a. Air temperature lower than standard.
b. Atmospheric pressure lower than standard.
c. Air temperature warmer than standard.

C

Under what condition will true altitude be lower than indicated altitude?
a. In colder than standard air temperature.
b. In warmer than standard air temperature.
c. When density altitude is higher than indicated altitude.

A

How do variations in temperature affect the altimeter?
a. Pressure levels are raised on warm days and the indicated altitude is lower than true altitude.
b. Higher temperature expand the pressure levels and the indicated altitude is higher than true altitude.
c. Lower temperatures lower the pressure levels and the indicated altitude is lower than true altitude.

A

The proper adjustment to make on the attitude indicator during level flight is to align the:
a. horizon bar to the level-flight indication
b. horizon bar to the miniature airplane
c. miniature airplane to the horizon bar

C

How should a pilot determine the direction of bank from an attitude indicator?
a. By the direction of deflection of the banking scale.
b. By the direction of deflection of the horizon bar.
c. By the relationship of the miniature airplane to the deflected horizon bar.

C

A turn coordinator provides an indication of the:
a. movement of the aircraft about the yaw and roll axes
b. angle of bank up to but not exceeding 30*
c. attitude of the aircraft with reference to the longitudinal axis

A

To receive accurate indication during flight from a heading indicator, the instrument must be:
a. set prior to flight on a known heading
b. calibrated on a compass rose at regular intervals
c. periodically realigned with the magnetic compass as the gyro precesses

C

After practicing unusual attitudes, you notice the heading indicator is off by 110*. The heading indicator can be reset by:
a. pushing the cage knob
b. pulling the cage knob
c. leaving it along, because it will be the exact same as the compass heading

A

The heading indicator operates off of:
a. DC voltage
b. AC voltage
c. Vacuum

C

What is a benefit of flying with a glass cockpit?
a. There is no longer a need to carry paper charts in flight.
b. Situational awareness is increased
c. Terrain avoidance is guaranteed

B

What steps must be taken when flying with glass cockpits to ensure safe flight?
a. Use the moving map for primary means of navigation, use the MFD to check engine systems and weather, back up with supplementary forms of information
b. Regularly scan each item on the PFD, confirm on the MFD
c. Regularly scan both inside and outside, use all appropriate checklists, and cross-check with other forms of information

C

An abnormally high engine oil temperature indication may be caused by
a. the oil level being too low
b. operating with a too high viscosity oil
c. operating with an excessively rich mixture

A

Excessively high engine temperature will:
a. cause damage to heat-conducting hoses and warping of the cylinder cooling fins
b. cause loss of power, excessive oil consumption, and possible permanent internal engine damage
c. not appreciably affect an aircraft engine

B

Excessively high engine temperatures, either in the air or on the ground, will:
a. increase fuel consumption and may increase power due to the increased heat
b. result in damage to heat-conducting hoses and warping of cylinder cooling fans
c. cause loss of power, excessive oil consumption, and possible permanent internal engine damage

C

For internal cooling, air cooled engines are especially dependent on:
a. a properly functioning thermostat
b. air flowing over the exhaust manifold
c. the circulation of lubricating oil

C

If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, the pilot may have been operating with:
a. the mixture set too rich
b. higher-than-normal oil pressure
c. too much power and with the mixture set too lean

C

What action can a pilot take to aid in cooling an engine that is overheating during a climb?
a. reduce rate of climb and increase airspeed
b. reduce climb speed and increase RPM
c. Increase climb speed and increase RPM

A

What is one procedure to aid in cooling an engine that is overheating?
a. enrich the fuel mixture
b. increase the RPM
c. reduce the airspeed

A

How is engine operation controlled on an engine equipped with a constant-speed propeller?
a. The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates engine RPM.
b. The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates a constant blade angle.
c. The throttle controls engine RPM as registered on the tachometer and the mixture control regulates the power output.

A