General Knowledge Questions

Who invented Aerosol can?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

When the kerosene burned, the fuel in the tank below would be __________ pressure, and __________a small circular flame would appear in the burner.The valve had to be opened to let more kerosene vapour to the burner and pumping resumed. With the increase in pressure, the burner flame would spread _________ a loud noise. To lower the flame,the valve had to be _________ opened to reduce the pressure and then tightened until the desired flame size was achieved. _________ you wanted the flame to be bigger, you had to hit the piston again. Pump stoves are still in vogue.

had to be _________ opened to reduce

'Queensbury rules' is code of rules that directly influences which of the following sport?

The outer most layer of Sun is known as___________

During the Middle Ages education was confined only to:-

The impact of Green Revolution was felt most in the case of

Polyploidy arises due to change in the

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Keep at bay