Previous year MCQs

General science UPPSC 2002 GS-I
Question

Which one of the following fibre is not a product of plant stem:

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Cotton

Detailed Solution:

The correct answer is “Cotton”.
Out of the given options, only cotton is not a product of plant stem. Cotton is obtained from the fruit of the cotton plant.

Similar Questions:

Genome mapping relates to:
  1. A) blood grouping
  2. B) mapping of genes
  3. C) mapping of nerve centers
  4. D) mapping of brain
Assertion (A): Coal based thermal power stations contribute to acid rains.
Reason (R): Oxides of carbon are emitted when coal burns.

Select the correct answer using the code given below:
Code:
  1. A) Both A and R are true and R is the correct explanation of A
  2. B) Both A and R are true but R is not the correct explanation of A
  3. C) A is true but R is false
  4. D) A is false but R is true
Which of the following is a stem?
  1. A) Turnip
  2. B) Ginger
  3. C) Carrot
  4. D) Sweet potato
Consider the following statements and select the correct answer from the code given below:

1. Brass is a compound of copper and zinc.
2. Magnetite is the most important ore of aluminium.
3. Amalgam is that substance which basically contains mercury.
4. Potassium nitrate is one of the essential chemicals used in photography.

Code:
  1. A) 1 and 2
  2. B) 1 and 3
  3. C) 2 and 3
  4. D) 1, 3 and 4
Which-of the following are the main objectives of the Sharda Sahayak Command Area Development Project > Select the correct answer from the objective codes given below:

I. To increase agricultural production
II. To change the land use pattern through multiple cropping in.
III. To improve the land management

Codes:
  1. A) I only
  2. B) I and II only
  3. C) II and III only
  4. D) All
The Xylem in plants is responsible for transporting -
  1. A) Water
  2. B) Oxygen
  3. C) Amino Acid
  4. D) Food
Which one of the following forms an irreversible complex with haemoglobin of the blood?
  1. A) Carbon dioxide
  2. B) Pure Nitrogen gas
  3. C) Carbon monoxide
  4. D) A mixture of carbon dioxide and helium
Accumulation of which one of the following in the muscles leads to fatigue?
  1. A) Lactic acid
  2. B) Benzoic acid
  3. C) Pyruvic acid
  4. D) Uric acid
In cold countries alcohol is preferred to mercury as a thermometric liquid because:
  1. A) alcohol has a lower freezing point
  2. B) alcohol is a better conductor of heat
  3. C) alcohol is cheaper than mercury
  4. D) the world production of alcohol is greater than that of mercury
Urea is:
  1. A) A nitrogen-containing organic compound
  2. B) A nitrogen-containing inorganic compound
  3. C) A plant hormone
  4. D) An Endergonic compound
Wilhelm Rontgen invented
  1. A) Radio
  2. B) X-Ray Machine
  3. C) Electric Bulb
  4. D) Electric Motor
Neutron was discovered by:
  1. A) Chadwick
  2. B) Rutherford
  3. C) Bohr
  4. D) Newton