CDS General Knowledge(1) Questions and answers

Topics

  1. Exams
    1. TNPSC
    2. Bank Exams
    3. CDSE
      1. CDS General English(1)
      2. CDS General Knowledge(1)
      3. CDS Maths(1)
      4. CDS General English(2)
      5. CDS General Knowledge(2)
      6. CDS Maths(2)
      7. CDS GK(3)
      8. CDS GK(4)
    4. SSC Exams

These questions were asked in previous year CDS General Knowledge exams. You can practice these questions are real time exam in this link.


21). Bagasse, a by-product of sugar manufacturing industry, is used for the production of
A). glass
B). paper
C). rubber
D). cement
22). The main constituent of Gobar gas is
A). Ethane
B). Methane
C). Propane
D). Acetylene
23). Which of the following is a good lubricant?
A). Diamond powder
B). Graphite powder
C). Molten carbon .
D). Alloy of carbon and iron
24). In Tritium (T), the number of protons (P) and neutrons (N) respectively are
A). 1 P and 1 N
B). 1 P and 2 N
C). 1 P and 3 N
D). 2 P and 1 N
25). When carbon dioxide is passed through lime water, the solution turns milky, but, on prolonged passage, the solution turns clear. This is because
A). the calcium carbonate formed initially is converted to soluble calcium bicarbonate on passage of more carbon dioxide
B). the reaction is reversible and lime water is regenerated
C). the calcium bicarbonate formed initially is converted to soluble calcium carbonate on passage of more carbon dioxide
D). the initially formed insoluble compound is soluble in carbonic acid.


26). The form of carbon known as graphite
A). is harder than diamond
B). contains a higher percentage of carbon than diamond
C). is a better electrical conductor than diamond
D). has equal carbon to-carbon distances in all directions
27). Which one among the following is an example of chemical change?
A). The melting of an ice cube
B). The boiling of gasoline
C). The frying of an egg
D). Attraction of an iron nail to a magnet
28). Which of the following is not correct about Baking Soda?
A). It is used in soda-acid fire extinguisher
B). It is added for faster cooking
C). It is a corrosive base
D). It neutralizes excess acid in the stomach
29). Chromium oxide in paints makes the colour of paint
A). Green
B). White
C). Red
D). Blue
30). Which of the following are the most important reason/reasons of flood becoming a destructive natural hazard in the Ganga-Brahmaputra valley?
1. Due to population pressure more and more people are living in flood prone areas
2. Increased frequency and magnitude of landslide and soil erosion in the upper catchments
3. Increase in the amount and intensity of rainfall in the north western part of India
Select the correct answer using the code given below:
A). 1 only
B). 1 and 2 only
C). 2 and 3 only
D). 1, 2 and 3
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