General Knowledge Questions And Answers :: General Science: part3



General Knowledge : General Science QUESTIONS AND ANSWERS :: part3 : 41 to 45

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

41.The following processes take place during the launching of a rocket : 1. Rocket fuel is burnt. 2. Gases are produced. 3. Rocket moves in the forward direction. 4. Gases come out with momentum in backward direction. The correct sequential order in which the above processes occur, is

1, 2, 3, 4
1, 3, 2, 4
1, 2, 4, 3
1, 3, 4, 2

42.The principle of working of periscope is based on

reflection only
refraction only
reflection and refraction
reflection and interference

43.The heat required to vaporise the refrigerant in the cooling unit of an electric refrigerator is furnished by

the electric motor
the friction in the pipes
the food in the refrigerator
the air outside the refrigerator

44.The lightning conductor used in building, protects the building by

dissipating the electric charge away from the building
conducting the lightning safely to the ground
absorbing the electric charge
None of these

45.Which of the following substances exhibit the property of sublimation ?

Ice
Wax
Camphor
Ethyl alcotol

More General Science QUESTIONS AND ANSWERS available in next pages

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