1. A concave lens always forms an image which is (SSC CGL 2010)
- (a) real and erect
- (b) virtual and erect
- (c) real and inverted
- (d) virtual and inverted
ANS (B)
2. A vitamin requires cobalt for its activity. The vitamin is (SSC CGL 2010)
- (a) Vitamin B12
- (b) Vitamin B12
- (c) Vitamin A
- (d) Vitamin B2
ANS (A)
3. One of the constituents of tear gas is
- (a) Ethane
- (b)Ethanol
- (c) Ether
- (d) Chloropicrin
ANS (D)
4. The modulus of rigidity is the ration of (SSC CGL 2010)
- (a) longitudinal stress to longitudinal strain
- (b) Volume stress to volume strain
- (c) shearing stress to shearing strain
- (d) tensile stress to tensile strain
ANS (B)
5. The propagation of sound waves in a gas involves (SSC CGL 2010)
- (a) adiabatic compression and refraction/li>
- (b) isothermal compression and rarefaction
- (c) isochoric compression and rarefaction
- (d) isobaric compression and rarefaction
ANS (A)
6. An stomic clock is based on transitions in (SSC CGL 2010)
- (a) Sodium
- (b) Caesium
- (c) Magnesium
- (d)Aluminium
ANS (B)
7. Plasma membrane in eukaryotic celle is made up of (SSC CGL 2010)
- (a) Phospholipid
- (b) Lipoprotein
- (c) Phospholpo-protein
- (d) Phospho-protein
ANS (A)
8. Which one of the following is also called the 'power plants' of the cell ? (SSC CGL 2010)
- (a) Golgi body
- (b) Mitochondrion
- (c) Ribosome
- (d) Lysosome
ANS (B)
9. What is the chemical name of vinegar ? (SSC CGL 2010)
- (a) Citric acid
- (b) Acetic acid
- (c) Pyruvic acid
- (d) Malic acid
ANS (B)
10. Which of the following is not a property of heavy water ? (SSC CGL 2010)
- (a) Boiling point of heavy water is lower than that of, ordinary water
- (b) Density of heavy water is higher than that of ordinary water
- (c) Freezing point of heavy water is higher than that of ordinary water
- (d) It produces corrosion
ANS (A)
11.In which of the following processes is energy released ? (SSC CGL 2010)
- (a) Respiration
- (b) Ingestion
- (c) Photosynthesis
- (d) Absorption
ANS (A)
12. Animals living in the three trunks are known as (SSC CGL 2010)
- (a) Arboreal
- (b) Volant
- (c) Amphibious
- (d) Aquatic
ANS (A)
13. In input frequency of a full wave rectifier be n, then output frequency would be (SSC CGL 2010)
- (a) n2
- (b) n
- (c) 3n2
- (d) 2n
ANS (A)
14. Heat transfer horizontally within the atmosphere is called (SSC CGL 2010)
- (a) Conduction
- (b) Convection
- (c) Absorption
- (d) Advection
ANS (D)
15. Noise is measured in (SSC CGL 2010)
- (a) Watt
- (b) REM
- (c) Centigrade
- (d) Decibel
ANS (D)
16. The bats can fly in the dark because (SSC CGL 2010)
- (a) they can see the objects in darkness
- (b)they have weak legs and are likely to be attacked by predators
- (c) they generate flashes of light
- (d) they generate ultrasonic sound waves
ANS (D)
17. What changes will happen to a bow of ice and water kept at exactly zero degree Celsius? (SSC CGL 2010)
- (a) All ice will melt
- (b) All water will become ice
- (c) No change will happen
- (d) Only some ice will melt.
ANS (C)
18. The art and science of map making is called (SSC CGL 2010)
- (a) Remote Sensing
- (b) Cartography
- (c) Photogrammetry
- (d) Mapping
ANS (B)
19. Silver halides are used in photographic plates because they are (SSC CGL 2010)
- (a) oxidised in air
- (b) soluble in hyposolution
- (c) reduced by light
- (d) totally colourless
ANS (C)
20. Tetra ethyle lead (TEL) is (SSC CGL 2010)
- (a) a catalyst in burning fossil fuel
- (b) an antioxidant
- (c) a reductant
- (d) an antiknock compound
ANS (D)
21. Curie point is the temperature at which (SSC CGL 2010)
- (a) Matter becomes radioactive
- (b) A metal loses magnetic properties
- (c) A metal loses conductivity
- (d) Transmutation of metal occurs.
ANS (B)
22. The isotope used for the production of atomic energy is (SSC CGL 2010)
- (a) U-235
- (b) U-238
- (c) U-234
- (d) U-236
ANS (A)
23. The acceleration due to gravity at the equator (SSC CGL 2010)
- (a) is less than that at the poles
- (b) is greater than that at the poles
- (c) is equal to that at the poles
- (d) does not depend on the earth's centripetal acceleration
ANS (A)
24. Which of the following is not a nucleon ? (SSC CGL 2010)
- (a) Proton
- (b) Neutron
- (c) Electron
- (d) Positron
ANS (D)
25. The material used in the manufacture of lead pencil is (SSC CGL 2010)
- (a) Graphite
- (b) Lead
- (c) Carbon
- (d) Mica
ANS (A)
26. Angle of friction and angle of repose are (SSC CGL 2010)
- (a) equal to each other
- (b) not equal to each other
- (c) proportional to each other
- (d) None of the above
ANS (A)
27. What happens to a person who receives the wrong type of blood? (SSC CGL 2010)
- (a) All the arteries constrict
- (b) All the arteries dialates
- (c) The RBCs agglutinate
- (d) The spleen and lymphnodes deteriorate
ANS (C)
28. If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by (SSC CGL 2010)
- (a) Mercury
- (b) Iron
- (c) Lead
- (d) Arsenic
ANS (D)
29. Ringworm is a ................ disease. (SSC CGL 2010)
- (a) Bacterial
- (b) Protozoan
- (c) Viral
- (d) Fungal
ANS (D)
30. Pituitary gland is situated in (SSC CGL 2010)
- (a) the base of the heart
- (b) the base of the brain
- (c) the neck
- (d) the abdomen
ANS (B)
