3111: Which one of the following statements regarding starch and cellulose is not correct ?
(a) Both of them are of plant origin
(b) Both of them are polymers
(c) Both of them give colour with iodine
(d) Both of them are made up of glucose molecules
3112: Most of the explosions in mines occur due to the mixing of
(a) hydrogen with oxygen
(b) oxygen with acetylene
(c) methane with air
(d) carbon dioxide with ethane
3113: With reference to technologies for solar power production, consider the following statements :
1. Photovoltaics is a technology that generates electricity by direct conservation of light into electricity, while Solar Thermal is a technology that utilizes the Sunss rays to generate heat which is further used in electricity generation process.
2. Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC).
3. India has manufacturing base for Solar Thermal technology, but not for Photovoltaics.
Which of the statements given aboveis/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) None
3114: Which of the following pairs is correctly matched?
Department Ministry of the Government of India
1. Department of Women and Child Development : Ministry of Health and Family
2. Department of Official Language : Ministry of Human Resource
3. Department of Drinking Water Supply : Ministry of Water Resources
Select the correct answer using the codes given below:
Codes:
(a) 1
(b) 2
(c) 3
(d) None
3115: The satellites of which one of the following countries have helped in the preparation of a detailed and complete map of Antarctica ?
(a) Canada
(b) France
(c) Russia
(d) USA