During the preflight inspection for a flight planned to cruise above 14,000 feet MSL, the oxygen system quantity indicator shows 800 psi, which is below the manufacturer’s specified minimum for dispatch. The BEST course of action is to

During the preflight inspection of a single-engine airplane, with the magneto switch OFF and the master switch ON (engine not running), the ammeter indicates a charge rather than a discharge. What is the most appropriate immediate action?

During the preflight inspection, while cycling the wing flaps through their full range, the pilot observes that the left flap extends fully to 30 degrees, but the right flap stops at 15 degrees and will not extend further. What is the required action prior to flight?

During the preflight inspection, while cycling the wing flaps through their full range of travel, you notice that the left flap extends approximately 1 inch less than the right flap. What is the most appropriate action?

The METAR at your departure airport reads: KXYZ 101200Z 00000KT 1/4SM FG OVC003 M01/M01 A3002. These conditions indicate a risk of pitot tube icing. Which electrical system component should be turned on prior to takeoff?

In a typical general aviation airplane, the onboard oxygen system stores oxygen as

During a stabilized approach, extending wing flaps typically causes a nose-down pitching moment in a small airplane. To maintain the desired pitch attitude using a secondary flight control, the pilot should apply

The airplane battery has a capacity of 30 ampere-hours. The alternator has failed, and with all non-essential electrical equipment turned off, the remaining electrical load is 20 amperes. Approximately how long will the battery supply electrical power before becoming depleted?

An airplane equipped with pneumatic deicing boots is operating in icing conditions. When should the pilot activate the deicing boots?

You are cleared to land at a towered airport in a retractable-gear airplane. While on short final approach, you notice the left main landing gear position light remains red after lowering and recycling the gear once per the normal checklist. The nose gear and right main gear lights are green. ATC offers a low approach for inspection by airport fire/rescue personnel. What is the MOST APPROPRIATE next action?

The METAR for your destination airport is KABC 131200Z 36004KT 3SM -RA BR OVC025 M02/M02 A2996. These conditions indicate a risk of airframe and pitot icing. In flight, an indication of pitot tube blockage would be

When the elevator trim tab is deflected downward, it will cause the elevator to

Before initiating the step taxi for takeoff in a seaplane, the water rudders should be

In the primary flight control system of a light airplane, the aileron bellcrank has an input arm (control stick side) that is 4 inches long and an output arm (aileron pushrod side) that is 8 inches long. If the control stick is displaced laterally 3 inches from neutral, what is the approximate linear displacement at the end of the output arm? (Assume small displacements where arc length approximates linear motion.)

The METAR for your departure airport reports temperature/dewpoint as M05/M08. Regarding the aircraft's oil system, which preflight action is most appropriate?

Prior to takeoff from the water in a seaplane, the water rudders should be

Freezing rain (FZRA) is reported along the planned route of flight. The primary purpose of the airplane's anti-icing system is to

The airplane propeller has a diameter of 74 inches. During preflight inspection, the clearance between the propeller tips and the ground is measured at 12 inches. What is the height of the propeller hub above the ground?

In a typical light general aviation airplane equipped with an avionics master switch, what is its primary function during preflight operations?