3011: The substitution of steel for wooden ploughs in agricultural production is an example of
(a) labour-augmenting technological progress
(b) capital-augmenting technological progress
(c) capital-reducing technological progress
(d) None of the above
3012: Gokaldas Tejpal Sanskrit Pathshala was the place where:
(a) The first session of Indian National Congress was held
(b) Max Mueller came to study Sanskrit
(c) A.O. Hume used to live
(d) Gandhiji made his first Ashram
3013: Out of a total of 120 musicians in a club, 5 percent can play all the three instruments-guitar, violin and flute. It so happens that the number of musicians who can play any two and only two of the above instruments is 30. The number of musicians who can play the guitar alone is 40. What is the total number of those who can play violin alone or flute alone ?
(a) 45
(b) 44
(c) 38
(d) 30
3014: Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?
1. To enable them to withstand drought
2. To increase the nutritive value of the produce
3. To enable them to grow and do photosynthesis in spaceships and space stations
4. To increase their shelf life
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4
3015: Consider the following chemicals :
1. Benzene
2. Carbon tetrachloride
3. Sodium Carbonate
4. Trichloroethylene
Which of the above is/are used as dry cleaning chemicals ?
(a) 1 Only
(b) 2 Only
(c) 1, 2 and 4 Only
(d) 1, 2, 3 and 4