Questions

Which among the following is not a characteristic of oxidation reaction?

Which of the following are highly compressible?

Beryl is an ore/mineral of

Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. If the sentence is correct as it is mark 'no error' as the answer.Jaitely announced a waivered of the service charge (a)/ on e-tickets and spoke about a number of steps (b)/ to improve passenger amenities (c)/ such as a ‘coach mitra’ facility. (d)/ No error (e).

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :A single device can heat fluids without requiring an electrical element.
S6:Because there is no electrical element, there is no risk of fire, so the system is suitable for dangerous environments.
P:A heat exchanger transfers heat from the central cavity to an air heater, a water heater or an industrial processor.
Q:It has a container like the crank case of a car’s engine, which contains the fluid to be heated.
R:Compression and friction at the nozzles heat the fluid so that the temperature in the central cavity rises steadily.
S:A motor and pulley insidethe container turn a rotor wheel, which in turn forces the fluid again and again through narrow nozzles into a central cavity.

The proper sequence should be 

Pneumonia affects which of the following organs of human body?

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".

By now that garden (had been reduced) to an insignificant muddy patch.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Aryabhatta was the first astronomer to state ______ that the earth is round and it rotates on its axis.