General Science - Mock Test 46

Question 451

Coolis tube is used to produce ?

A) Radio waves B) Micro waves C) X-rays D) Gamma rays

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Question 452

The proportion of nitrogen in the open air is?

A) 21% by volume B) 50% by volume C) 21% by weight D) 78% by volume

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Question 453

Water exists both as solid and liquid at ?

A) 1000C B) 500C C) 2.50C D) 00C

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Question 454

Reproductive cells in normal Human beings are produced?

A) in greater numbers for a longer period of time in the male B) for a longer period in the female than in the male C) in equal numbers in both sexes D) in greater numbers by the female than by the male

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Question 455

The drug quinine is used in the treatment of?

A) bubonic plague B) malaria C) typhus D) yellow fever

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Question 456

Which of the following in the human body is popularly called the ‘Adam’s Apple’?

A) Adrenal B) Liver C) Thyroid D) Thymus

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Question 457

The clear sky looks blue because of?

A) reflection of light B) refraction of light C) diffraction of light D) dispersion of light

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Question 458

Which one of the following statements regarding sound is true?

A) It travels at its greatest speed in vacuum. B) It produces transverse vibrations in the medium in which it travels. C) Its source is always a vibrating material. D) It cannot travel through liquids.

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Question 459

Who is credited with the development of polio vaccine?

A) Linus Pauling B) Jonas Salk C) Melvin Calvin D) Selman Waksman

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Question 460

Which of the following is not an attribute of bacterium?

A) Ability to arise from non-living matter B) Growth C) Reproduction D) Respiration

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