Science Physics Quiz Questions and Answers - 1

Question: 1

In radar system, the transmitting antenna is of

(A) rotating type in vertical plane

(B) rotating type in azimuth

(C) rotating type in azimuth or vertical plane of both 

(D) fixed type

Ans: B

rotating type in azimuth

Question: 2

The inert gas which is substituted for nitrogen in the air, used by deep sea drivers for breathing, is

(A) Krypton 

(B) Helium

(C) Argon

(D) Xenon

Ans: B


Question: 3

Amalgams are

(A) Alloys which have great resistance to abrasion

(B) Alloys which contain carbon

(C) Alloys which contain mercury as one of the contents

(D) Highly coloured alloys

Ans: C

Alloys which contain mercury as one of the contents

Question: 4

Actinides are the elements with atomic numbers from

(A) 36 to 43

(B) 89 to 103

(C) 97 to 114

(D) 101 to 115 

Ans: B

89 to 103

Question: 5

Human body needs a constant supply of proteins to survive. The first part of the digestive system to begin digesting proteins is

(A) Mouth  

(B) Stomach

(C) Small intestine

(D) Large intestine

Ans: B


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