An altimeter is a display in an airplane cockpit in which indicated the attitude

Question

An altimeter is a display in an airplane cockpit in which indicated the attitude at which the plane is flying. According to research discussed in the lecture and in your book of the above altimeter designs (A, B or C) is considered better, and why? A. A because research shows that circular displays are generally better B. A because it has a cross-hatched area which can be used for check reading C. B because of the principle of pictorial realism D. C because the pilot needs to know the exact altitude down to the nearest foot in order to fly the plane E. All the options are equally acceptable

Explanation / Answer

An Altimeter is an instrument used to measure the altitude of the land surface fro any distance object (such as AIrplane , Hot balloon ETC) . They are mainly of Two types 1. Pressure Altimeter 2. Radio Altimeter .

Pressure altimeter operates on the principle that average atmospheric decreases linearly with altitude . Where as Radio Altimeter measures absolute altitude based on the time required for a radio wave signal to travle from an airplane to the ground and back .

The conventional altimeter of airplane works by measuring the atmospheric pressure and compare it to a preset pressure value . The most commonly used altimeter is known as the three-point altimeter . This type of altimeter has a backgroung similar to a clock with number zero to 9 and three needles on the face.

31 (b) A because it has a coss hatched area which can be used for check reading .

cross hatched area thtat is displayed whenever the aircraft is below 10,000 feet .

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