Welcome to your Private Pilot - Chapter 3 Name Email Which instrument will become inoperative if the pitot tube becomes clogged? Altimeter. Vertical speed. Airspeed. If the pitot tube and outside static vents become clogged, which instruments would be affected? The altimeter, airspeed indicator, and turn-and-slip indicator. The altimeter, airspeed indicator, and vertical speed indicator. The altimeter, attitude indicator, and turn-and-slip indicator. If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication? Altimeter will indicate .15 inches Hg higher. Altimeter will indicate 150 feet higher. Altimeter will indicate 150 feet lower. If it is necessary to set the altimeter from 29.15 to 29.85, what change occurs? 70-foot increase in indicated altitude. 70-foot increase in density altitude. 700-foot increase in indicated altitude. The pitot system provides impact pressure for which instrument? Altimeter Vertical-speed indicator Airspeed indicator. 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. Which instrument(s) will become inoperative if the static vents become clogged? Airspeed only Altimeter only. Airspeed, altimeter, and vertical speed. In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if a left turn is entered from a west heading. an aircraft is decelerated while on an east or west heading. an aircraft is accelerated while on an east or west heading. 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°. 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 lower than the actual altitude above sea level. higher than the actual altitude above sea level. the actual altitude above sea level. Time's upTime is Up! 0 Private Pilot – Chapter 4 Private Pilot – Chapter 2