301. Where was the first iron and steel industry of India established?
1. Bhadravati
2. Bhilai
3. Jamshedpur
4. Burnpur
Option “3” is correct. The iron and steel industry is one of the most important industries in India. Jamshedpur was the first city where iron and steel industry of India established by Jamsetji Nusserwanji Tata .
302. The highest grade and best quality coal is-
1. Lignite
2. Peat
3. Bituminous
4. Anthracite
Option “4” is correct. The ranks of coal quality are as follows anthracite,bituminous , lignite and peat. Anthracite is a hard, black, shiny form of coal that contains virtually no moisture and very low volatile content. Because of this, it burns with little or no smoke and is sold as a “smokeless fuel”.
303. Which of the following is the busiest navigable river of the world?
1. Danube
2. Rhine
3. Seine
4. Volga
Option “2” is correct. The Rhine, which flows in Switzerland, Liechtenstein, Austria, Germany, France and Netherlands, is the most important and busiest waterway in Europe. Other busy waterways include Seine and Loire rivers of France, Danube river of eastern Europe and Volga river of Russia.
304. The island of Socotra is a part of which of the following countries?
1. Saudi Arabia
2. Oman
3. UAE
4. Yemen
Option “4” is correct. Socotra , is an archipelago of four islands located in the Arabian Sea, the largest island of which is also known as Socotra. The territory is part of Yemen.
305. “Titan” is satellite of?
1. Saturn
2. Venus
3. Earth
4. Mercury
Option “1” is correct. Titan is the largest moon of Saturn. It is the only moon known to have a dense atmosphere, and the only object in space other than Earth where clear evidence of stable bodies of surface liquid has been found.
306. In which State have Indian Railways introduced “Palace on Wheels” to promote tourism?
1. Kerala
2. Maharashtra
3. Rajasthan
4. Punjab
Option “3” is correct. With a noble motive to promote tourism in Rajasthan, the Rajasthan Tourism Development Corporation along with Indian Railway launched the first Indian luxury train Palace on Wheels on 26th January’ 1982.
307. Which of the following cities in India is considered cleanest according to Swachh Bharat Abhiyan Survey 2017?
1. Bengaluru
2. Mysore
3. Chandigarh
4. Indore
Option “4” is correct. Indore is the cleanest city in India according to Swachh Survekshan 2017 report released by the Government.
308. Red soil is normally found in India in which regions?
1. Eastern Region only
2. Southern Region only
3. Eastern & Southern part of the Deccan Plateau
4. None of these
Option “3” is correct. Red soil is formed as a result of weathering of metamorphic and igneous rocks. The red colour of the soil comes from the high percentage of iron content.It is found on eastern and southern part of Deccan plateau.
309. Which of the following greenhouse gases has the greatest heat trapping ability?
