Previous year MCQs

General science UPPSC 2007 GS-I
Question

Computer I. C. Chips are often made of:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Silicon

Detailed Solution:

The correct answer is “Silicon”.
Computer I.C. chips are often made of: (3) Silicon.

Similar Questions:

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
The substance used as moderator and coolant both, in nuclear reactors is:
  1. A) Ordinary water
  2. B) Heavy water
  3. C) Liquid Ammonia
  4. D) Liquid Hydrogen
Genome mapping relates to:
  1. A) blood grouping
  2. B) mapping of genes
  3. C) mapping of nerve centers
  4. D) mapping of brain
Corn can be cultivated:
  1. A) In the Kharif season
  2. B) In the Rabi season
  3. C) In the Zaid season
  4. D) All the year
Liquid crystals are used in:
  1. A) Wrist watches
  2. B) Display devices
  3. C) Pocket calculators
  4. D) All the above
Which of the following committee had examined the issue of full convertibility of Indian rupees?
  1. A) Baghul committee
  2. B) Rangarajan committee
  3. C) Tarapore committee II
  4. D) Hashim committee
What are enzymes basically?
  1. A) Fats
  2. B) Sugars
  3. C) Proteins
  4. D) Vitamins
Which of the following is not related to the astronomical theories of climate change?
  1. A) Eccentricity of earth's orbit
  2. B) Obliquity of earth's rotational axis
  3. C) Precession of equinoxes
  4. D) Solar irradiance
Which one of the following salts contributes maximum to the salinity of sea water?
  1. A) Calcium sulphate
  2. B) Magnesium chloride
  3. C) Magnesium sulphate
  4. D) Sodium chloride
Statement (A): The signal of danger is made of red colour.
Reason (R): The scattering of red is least

Select the right answer with the help of 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
Automatic wrist watches get energy from:
  1. A) Cranial spasms
  2. B) Battery
  3. C) From liquid crystal
  4. D) From the various movements of our hands
Which one of the following parts of Mentha possesses maximum oil percentage?
  1. A) Root
  2. B) Stem
  3. C) Leaf
  4. D) Flower