Which compressor is usually used in AC?
A). Centrifugal
B). Rotary
C). Reciprocating
D). Axial
Reciprocating
The reciprocating compressor is the most popular type of AC compressor.
2. The unit of electrical power is
3. The swing of a spinning cricket ball in air can be explained on the basis of
4. Purity of a metal can be determined with the help of
5. The least penetrating power ray is
6. The ''four stroke petrol engine' is based on
8. Which one of the following wavelengths of light is most effective in photosynthesis ?