Select atleast two testing devices from among the categories (you may go beyond two). Discuss its application and methods of use. a. testing for speed (Tachometer), b. Testing of Air Consumption (Air-box method/viscous-flow meter), c. testing of exhaust smoke (Bosch/Hartridge/PHS), d. testing of exhaust emission (flame ionization detector/spectroscopic analyzers/gas chromatography) e. testing of torque (absorption dynamometer/transmission dynamometer).

You’re testing a system that involves a fan, water pump, and compressor. The components are turned ON in sequence and sensor readings are taken, as per a written protocol that you’re following. The system is running as expected after the fan and water pump are turned ON. However, when you turn ON the compressor, it runs for about thirty seconds then stops, consistently. Swapping out the compressor for a different one seems to solve the problem. What could have been the issue with the bad compressor?

Q 152. quick tests to a GM hot film mass airflow meter on an engine with idling problems are being performed. technician A taps on the meter lightly with a plastic mallet. technician B unplug the meter. who is correct?

Four months into a six month deployment, you are a solo pilot returning to home base after an uneventful overwatch mission to a non-disclosed desert location. Your mission was extended 90 minutes requiring at least one additional aerial refuel. The moon has now set. A shift in prevailing winds causes an infrequently used runway to be active. You are less familiar with the approach to this runway and have only used it during VFR conditions. The instrument approach plate reveals you will fly a prolonged DME arc taking you out over the unlit desert away from the dimly lit base. While flying the above instrument approach, you take another look at the approach plate. When you look up again the airfield lights are visible through the upper portion of your canopy. You did not sense any change in your aircraft attitude. Which of the following best describes what happened while you looked at the approach plate? OA. The black hole effect has amplified the normal reflection of the airfield lights…