Questions

If rsin∅ =1, rcos∅=√3, then the value of r2tan∅ is

What is the value of √121 + √12321 + √1234321 + √123454321?

Arithmometer was invented by

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

What a _____ holiday!

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.

Callow

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.

and __________ a small circular flame

What is the SI unit of pressure?

In a computer, what is the name of the high speed memory used