Verbal Reasoning - Analogy - Choosing the Analogous Pair
Directions : Each of the following questions consists of two words that have a certain relationship to each other, followed by four lettered pairs of words. Select that lettered pair which has the same relationship as the original pair of words.
The main purpose of a variometer is in helping a pilot find and stay in the core of a thermal to maximise height gain and, conversely, to indicate when a pilot is in sinking air and needs to find rising air. Humans can sense the acceleration when they first hit a thermal, but cannot detect the difference between constant rising air and constant sinking air. Modern variometers are capable of detecting rates of climb or sink of 1 cm per second. A variometer indicates climb rate or sink rate with short audio signals beeps, which increase in pitch and tempo during ascent, and a droning sound, which gets deeper as the rate of descent increases and or a visual display. It also shows altitude either above takeoff, above sea level, or at higher altitudes flight level.