SU-2 Airplane Instruments, Engines, and Systems PP Exam

1. In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if

• an aircraft is decelerated while on an east or west heading.
• a left turn is entered from a west heading.
• an aircraft is accelerated while on an east or west heading.

2. Deviation in a magnetic compass is caused by the

• presence of flaws in the permanent magnets of the compass.
• difference in the location between true north and magnetic north.
• magnetic fields within the aircraft distorting the lines of magnetic force.

3. During flight, when are the indications of a magnetic compass accurate?

• Only in straight-and-level unaccelerated flight.
• As long as the airspeed is constant.
• During turns if the bank does not exceed 18°.

4. Deviation error of the magnetic compass is caused by

• a northerly turning error.
• certain metals and electrical systems within the aircraft.
• the difference in location of true north and magnetic north.

5. In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate

• a turn momentarily.
• correctly when on a north or south heading.
• a turn toward the south.

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

• a left turn is entered from a north heading.
• a right turn is entered from a north heading.
• an aircraft is decelerated while on a west heading.

7. In the Northern Hemisphere, the magnetic compass will normally indicate a turn toward the south when

• a left turn is entered from an east heading.
• a right turn is entered from a west heading.
• the aircraft is decelerated while on a west heading.

8. 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?

• The compass will initially indicate a turn to the left.
• The compass will indicate a turn to the right, but at a faster rate than is actually occurring.
• The compass will remain on south for a short time, then gradually catch up tot he magnetic heading of the airplane

9. In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the east if

• an aircraft is decelerated while on a south heading.
• an aircraft is accelerated while on a north heading.
• a left turn is entered from a north heading.

10.The pitot system provides impact pressure for which instrument?

• Altimeter.
• Vertical-speed Indicator.
• Airspeed Indicator.