Previous 10 Years Question Papers with Answers for TRB Science - 1

Question: 1

Armature of Dynamo is made with

(A) Ferro magnetic material

(B) Porcelain material  

(C) Iron material

(D) Cu-material

Ans: C

Iron material

Question: 2

Who detected Rh factor?

(A) Landstenear and Vinear

(B) Landstenear

(C) Vinear

(D) Leeuwenhock

Ans: A

Landstenear and Vinear

Question: 3

What is the purest form of iron?

(A) Wrought iron

(B) Cast iron

(C) Steel

(D) Pig iron

Ans: A

Wrought iron

Question: 4

Which of the following is a non metal that remains liquid at room temperature?

(A) Phosphorous 

(B) Chlorine

(C) Bromine

(D) Helium

Ans: C

Bromine

Question: 5

Clotting of blood vessels is called

(A) Agglutinisation

(B) Thrombosis 

(C) Rheumatism

(D) Fibrosis

Ans: B

Thrombosis 

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