Question 115 Helium is preferred to hydrogen in airships because
A. It has greater lifting power.
B. It is cheaper.
C. It does not form explosive mixtures with air.
B. Assam
C. Chhattisgarh
A. It has greater lifting power.
B. It is cheaper.
C. It does not form explosive mixtures with air.
Answer: It does not form explosive mixtures with air.
Explanation: Helium’s non-flammable nature makes it a perfect lifter gas. Hydrogen is although lighter than helium but flammable nature of hydrogen makes it risky in airships.
Question 116 Rongker festival is celebrated in which state?
A. SikkimB. Assam
C. Chhattisgarh
Answer : Assam
Explanation : It is a springtime festival in Assam which is observed annually.
Question 117 वर्तमान में खाद्य एवं कृषि संस्था(FAO) में कितने राष्ट्र सदस्य है ?
Food and Agriculture Organization has how many member nations?
A. 144
B. 194
C. 184
D. 164
A. 144
B. 194
C. 184
D. 164
Answer: 194 member nations
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