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
Helium
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
Stomach
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