Exams

If x + [1/(x + 7)] = 0, then what is the value of x – [1/(x + 7)]?

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.

would spread _________ a loud noise.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
I wondered what one would have thought some 40 years ago if you (had said) you could heat liquid using a plastic container.

'Neo-Malthusian Theory' is associated with which of the following?

Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.

Statement: Honesty is the best policy.

Conclusion
I: All should be honest.
II: Only some people should be honest.

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

Absolute Zero is defined as

Two men are on opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30 ̊ and 45 ̊ respectively. If the height of the tower is 50 m, the distance between the two men is (Take √3 = 1.73)