Question
Which of the following devices in a thresher is
responsible for separating grains from straw?Solution
The concave, in combination with the cylinder, performs the threshing action by rubbing the crop and separating the grain from the straw and chaff.
On the basis of which phenomenon does a Jet Engine work?
Which of the following is a conductor of electricity?
Which of the following is not a unit of energy?
 No matter how far you stand from a mirror, your image appears erect. The mirror is likely to beÂ
Which of the following is not a vector-borne disease?
Food cans are coated with tin and NOT zinc because ________.
Which of the following gases in the atmosphere is/are responsible for acid rains?
1. Oxides of Sulphur
2. Oxides of nitrogen
3. Oxi...
Marbles come under which category of rockes?
A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?
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