instrumentos digitales

(8466) - The boiling point of a given liquid varies. A directly with pressure. B-inversely with pressure. C-directly with density.

2 (8467)-Which of the following is NOT considered a method of heat transfer?. A-Convection. B Conduction. C/Diffusion.

3 (8469) Which condition is the actual amount of water vapor in a mixture of air and water?. A- Relative humidity,. BDewpoint. C-Absolute humidity.

4 (8470)-Under which conditions will the rate of flow of a liquid through a metering orifice (or jet) be the greatest (all other factors being equal)?. A- Unmetered pressure, 18 PSI; metered pressure, 17.5 PSI, atmospheric pressure, 14.5 PSI. B-Unmetered pressure, pressure, 23 PSI, metered pressure, 12 PSt atmospheric pressure, 14.3 PSI. C-Unmetered pressure, 17 PSI, metered pressure, 5 PSI, atmospheric pressure, 14.7 PSI.

58472)-Which will weigh the least?. A-98 parts of dry air and 2 parts of water vapor. B 35 parts of dry air and 65 parts of water vapor. C 50 parts of dry air and 50 parts of water vapor.

6 (8474)-The speed of sound in the atmosphere varles according to the frequency of the sound. changes with a change in temperature. changes with a change in pressure. A varles according to the frequency of the sound. B changes with a change in temperature. C changes with a change in pressure.

78474.1)-The speed of sound in the atmosphere is most affected by variations in which of the following? 1. Sound frequency (cps). 2. Ambient temperature. 3. Barometric pressure. A 1. B 2. C 3.

(8475) if the volume of a confined gas is doubled (without the addition of more gas), the pressure will sssume the temperature remains constant). Increase in direct proportion to the volume increase. remain the same. be niduced to one-half its original value.

9 (8476) if the temperature of a confined liquid is held constant and its pressure is tripled, the volume will. triple. be reduced to one-thind its original volume. remain the same.

10 (8473)-Which atmospheric conditions will cause the true landing speed of an aircraft to be the greatest?. Low temperature with low humidity. High temperature with low humidity. High temperature with high humidity.

11 (8482)-Which statement conceming heat and/or temperature is true?. A- There is an inverse relationship between temperature and heat. (B-Temperature is a measure of the kinetic energy of the molecules of any any substance. C- Temperature is a measure of the potential energy of the molecules of any substance.

12 (8483)-What is absolute humidity?. A- The temperature to which humid air must be cooled at constant pressure to become saturated. (B)The actual amount of the water vapor in a mixture of air and water. C- The ratio of the water vapor actually present in the atmosphere to the amount that would be present if the air were saturated at the prevailing temperature and pressure.

13 (8484)-The temperature to which humid air must be cooled at constant pressure to become saturated is called. A dewpoint. B absolute humidity. C relative humidity.

14 (8485)-If both the volume and the absolute temperature of a confined gas are doubled, the. A pressure will Anot change. B-be halved. C- become four times as great.

15 (8326)-Which of the following is considered a primary flight control?. A-Slats. B Elevator. C-Dorsal fin.

16 (8327)-Which of the following is considered an. A Ruddervator. B- Upper rudder. C-Leading-edge flaps.

17 (8328) - What is the purpose of a control tab? A Move the flight controls in the event of manual reversion. A Move the flight controls in the event of manual reversion. B-Reduce control forces by deflecting in the proper direction to move a primary flight control. C-Prevent a control surface from moving to a full-deflection position due to aerodynamic forces.

18 (8331) Which is a purpose of leading-edge flaps?. A- Increase the camber of the wing. B-Reduce lift without increasing airspeed. C-Direct airflow over the top of the wing at high angles of attack.

19 (8332) What is a purpose of flight spoilers?. Increase the camber of the wing. Reduce lift without increasing airspeed. -Direct airflow over the top of the wing at high angles of attack.