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21
The Jawar mines of Udaipur are famous for
Discuss
Answer & Solution
Answer: Option B
Solution:
The Jawar mines of Udaipur are famous for Zinc. Zawar is a township created by mining company Hindustan Zinc Limited, for extraction of zinc and lead. An 80MW power plant provides electricity for mining zinc and lead from three major mines.
22
The reservoir Gobind Sagar is on which river in Punjab?
Discuss
Answer & Solution
Answer: Option A
Solution:
Gobind Sagar is a man-made reservoir situated in Bilaspur District of Himachal Pradesh. One of the worlds highest gravity dams, the Bhakra dam rises nearly 225.5 m above its lowest foundations. In October and November, when the water level of the reservoir is high, a series of regattas are also organised by the Tourism and Civil Aviation department.
23
The main mineral found in upper Brahmaputra valley is
Discuss
Answer & Solution
Answer: Option C
Solution:
Main mineral found in upper Brahmaputra valley is petroleum. British in 1901 started extracting petroleum in Digboi district of Assam. It is oldest petroleum refinery in India.
24
Which of the following is a non-metallic mineral?
Discuss
Answer & Solution
Answer: Option C
Solution:
Gypsum is a non-metallic mineral. Non-metallic mineral reserves consist of stone quarries and clay and sand pits; chemical and fertiliser mineral deposits.
25
All example of a mineral occurring as layers in sedimentary rocks is
Discuss
Answer & Solution
Answer: Option A
Solution:
All example of a mineral occurring as layers in sedimentary rocks is Lignite. Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content. It has a carbon content around 60-70%.
26
Which State Possesses biggest coal reserve?
Discuss
Answer & Solution
Answer: Option B
Solution:
Biggest coal reserve lies in Jharkhand. As most of the Chhota Nagpur Region lies in this state. It comprise of big coal field in Damodar Valley.
27
The Himalayan region is poor in mineral resources because ________
Discuss
Answer & Solution
Answer: Option B
Solution:
The Himalayan region is poor in mineral resources because the displacement of rock strata has disturbed the arrangement of rock and made it complex.
28
Which of the following statement (s) regarding India's coal reserves is/are true ?
I. Over 90% of total reserves are located in the valleys of Son, Damodar, Mahanadi and Godavari
II. Indian coal reserves are characterised by low ash content and high calorific value
III. India has limited prime coking reserves
Discuss
Answer & Solution
Answer: Option D
Solution:
The statements regarding India's coal reserves that are true are over 90% of total reserves are located in the valleys of Son, Damodar, Mahanadi and Godavari, Indian coal reserves are characterised by low ash content and high calorific value and India has limited prime coking reserves.
29
What is the correct sequence of these areas in descending order of their coal reserves?
1. Himalayas
2. Chhotta Nagpur
3. Chhattisgarh
4. Son Valley
Discuss
Answer & Solution
Answer: Option D
Solution:
The correct sequence of these areas in descending order of their coal reserves are Chhotta Nagpur, Chhattisgarh, Son Valley and Himalayas.
30
Consider the following statements:
1. Balaghat is known for its diamond mines.
2. Majhgawan is known for its manganese deposits.
Which of the statements given above is/are correct?
Discuss
Answer & Solution
Answer: Option D
Solution:
Both the statements are incorrect. Balaghat of Madhya Pradesh is known for its manganese mines. Majhgawan is famous for its diamond mines.