General Science Question for Railway Exam 2016

 

1. The pyruvic acid formed during glycolysis is oxidized to CO2 and H2O in a cycle called :
A. Calvin cycle
B. Nitrogen cycle
C. Hill reaction
D. Krebs cycle
2. Respiratory quotient (RQ) is one in case of :
A. Fatty acids
B. Nucleic acids
C. Carbohydrates
D. Organic acids



3. An example of free living nitrogen fixing aerobic bacteria is :
A. Clostridium
B. Rhizobium
C. Azotobacter
D. Rhodospirillum
4. Identify the plant belonging to the Reed-Swamp stage in hydrarch succession :
A. Juncus
B. Sagittaria
C. Salix
D. Trapa
5. A gas produced by paddy fields and connected with global warming is :
A. CO2
B. Chlorine
C. H2S
D. Methane
6. If the strong partner is benefited and the weak partner is damaged, it is known as :
A. Predation
B. Allelopathy
C. Symbiosis
D. Commensalism
7. Acid rain is mainly caused due to increase in the levels of the gas(es) :
A. SO2 only
B. CO2 only
C. SO2, CO2
D. NO2 and SO2
8. The flow of energy among various trophic levels of an ecosystem is :
A. Unidirectional
B. Bidirectional
C. Multidirectional
D. Circular
9. Increase in atmospheric temperature due to CO2 is called :
A. Pasteur effect
B. Green-house effect
C. Blackman effect
D. Emerson effect
10. The protective-ozone layer is present in :
A. Ionosphere
B. Stratosphere
C. Troposphere
D. Lithosphere
Answers:
21. D     22. C      23. C      24. B      25. D      26. A      27. D     28. A     29. B     30. B
 

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