ATPL (Philippines) - Flight Performance & Planning 3 question n answers 2023/2024

ATPL (Philippines) - Flight Performance & Planning 3 1. Minimum specific fuel consumption of the turboprop engine is normally available in which altitude range? a. 25,000 feet to the tropopause. b. The tropopause to 45,000 feet. c. 10,000 feet to 25,000 feet. - correct answers a. 25,000 feet to the tropopause. 2. What effect would a change in ambient temperature or air density have on gas-turbine- engine performance? a. As temperature increases, thrust increases. b. As air density decreases, thrust increases. c. As temperature increases, thrust decreases. - correct answers c. As temperature increases, thrust decreases. 3. As outside air pressure decreases, thrust output will: a. increase due to greater efficiency of jet aircraft in thin air. b. decrease due to higher density altitude. c. remain the same since compression of inlet air will compensate for any decrease in air pressure. - correct answers b. decrease due to higher density altitude. 4. What effect will an increase in altitude have upon the available equivalent shaft horsepower (ESHP) of a turboprop engine?: a. Power will remain the same but propeller efficiency will decrease. b. Higher propeller efficiency will cause an increase in usable power (ESHP) and thrust. c. Lower air density and engine mass flow will cause a decrease in power. - correct answers c. Lower air density and engine mass flow will cause a decrease in power. 5. What effect, if any, does high ambient temperature have upon the thrust output of a turbine engine? a. Thrust will be reduced due to the decrease in air density. b. Thrust will be higher because more heat energy is extracted from the hotter air. c. Thrust will remain the same, but turbine temperature will be higher. - correct answers a. Thrust will be reduced due to the decrease in air density. 6. What effect does high relative humidity have upon the maximum power output of modern aircraft engines? a. Neither turbojet nor reciprocating engines are affected. b. Turbojet engines will experience a significant loss of thrust. c. Reciprocating engines will experience a significant loss of BHP. - correct answers c. Reciprocating engines will experience a significant loss of BHP. 7. What is the name of an area beyond the end of a runway which does not contain obstructions and can be considered when calculating takeoff performance of turbine-powered aircraft? a. Obstruction clearance plane. b. Clearway. c. Stopway. - correct answers b. Clearway. 8. What is an area identified by the term ''stopway''? a. An area designated for use in decelerating an aborted takeoff. b. An area, at least the same width as the runway, capable of supporting an airplane during a normal takeoff. c. An area, not as wide as the runway, capable of supporting an airplane during a normal