Previous year MCQs

General science UPPSC 1999 GS-I
Question

Which one of the following human organs is less susceptible to harmful radiations?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Brain

Detailed Solution:

The correct answer is “Brain”.
The brain has been considered a radiation-resistant organ, on which only very high doses have been thought to have harmful effects.

Similar Questions:

The important metal used with iron to produce stainless steel is:
  1. A) carbon
  2. B) tin
  3. C) chromium
  4. D) aluminium
Tulsi plant has medicinal values due to the presence of the following ?
  1. A) Inorganic Acid
  2. B) Organic Acid
  3. C) Phenols and Flavonoids
  4. D) None of the above
The disease caused by deficiency of protein in children is
  1. A) Kwashiorkor
  2. B) Pellagra
  3. C) Beri beri
  4. D) Rickets
'Cerebral palsy' is a brain disorder found generally in:
  1. A) Old people
  2. B) Drug addicts
  3. C) Small children
  4. D) Only ladies
What is the function of a pace maker?
  1. A) It regulates the heart beat
  2. B) It increases the heart beat
  3. C) It accelerates blood supply to heart
  4. D) It decreases the heart beat
Which one of the following is the hardest metal?
  1. A) Gold
  2. B) Iron
  3. C) Platinum
  4. D) Tungsten
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).

Assertion (A): A solution of table salt in a glass of water is homogeneous.
Reason (R): A solution having different composition throughout is homogeneous.

Select the correct answer from the code given below:
Code:
  1. A) (A) is false but (R) is true
  2. B) (A) is true but (R) is false
  3. C) Both (A) and (R) are true but (R) is not the correct explanation of (A)
  4. D) Both (A) and (R) are true and (R) is the correct explanation of (A)
Which one of the following parts of Mentha possesses maximum oil percentage?
  1. A) Root
  2. B) Stem
  3. C) Leaf
  4. D) Flower
The rain-drops are spherical because:
  1. A) they fall from big height
  2. B) the air has resistance
  3. C) the water has surface tension
  4. D) none of the above
Which one of the following is NOT correctly matched?(Substance) (Use)
  1. A) Silver bromide - Artificial photosynthesis
  2. B) Silver iodide - Artificial rain
  3. C) Lithium bicarbonate - Treatment of rheumatism
  4. D) Milk of magnesia - Antacid
Which of the following food materials contains all essential amino acids?
  1. A) Rice
  2. B) Milk
  3. C) Wheat
  4. D) Soyabean
Which of the following is/are used as disinfectant of water?
  1. A) Ozone
  2. B) Chlorine dioxide
  3. C) Chloramine
  4. D) All of the above