66. The most important coal field of India is

1. 1. Bokaro

   
   
   

   2. Raniganj

   
   
   

   3. Jharia

   
   
   

   4. Giridih

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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67. Which one of the following states of India is the largest producer of lignite coal ?

1. 1. Maharashtra

   
   
   

   2. Gujarat

   
   
   

   3. Madhya Pradesh

   
   
   

   4. Tamil Nadu

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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68. The first hydel project in Andaman and Nicobar islands has been commissioned by

1. 1. NHPC

   
   
   

   2. Dabhol Power Corporation

   
   
   

   3. BHEL

   
   
   

   4. NTPC

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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69. In the context of alternative sources of energy, ethanol as viable bio-fuel can be obtained from

1. 1. Potato

   
   
   

   2. Rice

   
   
   

   3. Sugarcane

   
   
   

   4. Wheat

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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70. The first hydro-electric power station was constructed 1902 at

1. 1. Metture

   
   
   

   2. Pykara

   
   
   

   3. Kundah

   
   
   

   4. Sivasamudram

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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