100 Science Questions and Answers for RRB NTPC
Who invented Hydrogen bomb?
(A) J. Robert Oppenheimer
(B) Albert Einstein
(C) Samuel Kohen
(D) Edward Teller
Correct Answer : D
Which of the following is the most abundant element in the Earth’s crust?
(A) Oxygen
(B) Silica
(C) Iron
(D) Aluminum
Correct Answer : A
Which of the following grain was first used by human?
(A) Ragi
(B) Wheat
(C) Barley
(D) Oat
Correct Answer : B
Which of the following major diseases is caused by ultraviolet radiations?
(A) Liver cancer
(B) Skin cancer
(C) Neurological disorder
(D) Blood cancer
Correct Answer : B
Photosynthesis in plants converts light energy to____ energy.
(A) Chemical
(B) Thermal
(C) Kinetic
(D) Physical
Correct Answer : A
Which type of magnet is used in an electric bell?
(A) Bar magnet
(B) Cylindrical magnet
(C) Electromagnet
(D) Button magnet
Correct Answer : C
Who invented the battery?
(A) Michael Faraday
(B) Volta
(C) Maxwell
(D) Roentgen
Correct Answer : B
What is the scientific name of Banyan Tree?
(A) Mangifera indica
(B) Ficus benghalensis
(C) Azadirachta indica
(D) Shorea robusta
Correct Answer : B
Where the Bio-chemical compounds are used?
(A) Food preservatives
(B) Skin Treatments
(C) Cooking Oils
(D) All of the above
Correct Answer : D
What is white Phosphorus?
(A) P4
(B) P
(C) O3
(D) Pb
Correct Answer : A
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Vikram Singh
Providing knowledgable questions of Reasoning and Aptitude for the competitive exams.
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