Previous year MCQs

General science UPPSC 2015 GS-I
Question

Bauxite is the ore of:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Aluminium

Detailed Solution:

The correct answer is “Aluminium”.
Bauxite is the ore of aluminum. It is a mineral composed primarily of aluminum hydroxide and is the main source of aluminum metal.

Similar Questions:

With which of the following is the tape of the tape recorder coated?
  1. A) Copper sulphate
  2. B) Ferromagnetic powder
  3. C) Zinc oxide
  4. D) Mercury
In coronary artery by-pass surgery the blood vessel to be used as graft has to be:
  1. A) vein from the leg
  2. B) artery from the fore arm
  3. C) artery from mammary region of chest
  4. D) Any of these
'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
The bacillus haemophilus influenza causes ?
  1. A) Whooping cough
  2. B) A form of meningitis in young children
  3. C) Pneumonia
  4. D) Influenza
A powerful eye irritant in the smoke is:
  1. A) Ozone
  2. B) Sulphur dioxide
  3. C) Carbon dioxide
  4. D) Peroxyacetyle nitrate
Wireless communication is reflected to earth’s surface by
  1. A) Troposphere
  2. B) Stratosphere
  3. C) Ionosphere
  4. D) Exosphere
Which of the following pairs is NOT correctly matched ?
Quantity – S. I. Unit
  1. A) Activity of radio active substance – Curie
  2. B) Power of lense – Diopter
  3. C) Heat – Joule
  4. D) Pressure – Pascal
Pyrometer is used for measuring:
  1. A) Air Pressure
  2. B) Humidity
  3. C) High Temperature
  4. D) Intensity of Earthquake
Genome mapping relates to:
  1. A) blood grouping
  2. B) mapping of genes
  3. C) mapping of nerve centers
  4. D) mapping of brain
Which of the following is not a "ghost-town"?
  1. A) Kuldhara
  2. B) Dhanushkodi
  3. C) Lakhpat
  4. D) Charkhari
If the doors of a refrigerator are left open for a few hours, the room temperature:
  1. A) will decrease
  2. B) will increase
  3. C) will remain the same
  4. D) will decrease only in the area in the vicinity of the refrigerator
Consider the following statements and give the answer with the help of codes given below:

Assertion (A): Only one side of the moon's surface is visible from the earth.
Reason (R): The period of rotation of the moon on its axis is equal to the period of its revolution round the earth.

Code:
  1. A) Both A and R are correct and R is the correct explanation of A.
  2. B) Both A and R are correct but R is not the correct explanation of A.
  3. C) A is correct but R is wrong.
  4. D) A is wrong but R is correct.