3041: Which one of the following ports of India handles the highest tonnage of import cargo ?
(a) Calcutta
(b) Kandla
(c) Mumbai
(d) Visakhapatnam
3042: With reference to 'fly ash' produced by the power plants using coal as fuel, which of the following statements is/are correct?
1. Fly ash can be used in the production of bricks for building construction.
2. Fly ash can be used as a replacement for some of the Portland cement concrete.
3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only
3043: Which one of the following pairs is NOT correctly matched?
Project : Company
(a) Integrated Steel Plant at Jaipur (Orrisa) - Steel Authority of India
(b) Power Plant at Jamnagar (Gujarat) - Essar Power
(c) Nabinagar Power Plant (Bihar) - Indian Railways
(d) Kayamkulom Power Plant (Kerala) - National Thermal Power Corporation
3044: Who among the following have a right to vote in the Vice-Presidential election but not in the Presidential election ?
(a) Ministers who are not members of either House of the Parliament
(b) Elected members of the Upper Houses of the States
(c) Nominated members of the Parliament
(d) Members of the Parliament who abstain from all meetings of the House for a period of sixty days without permission of the House
3045: Consider the following statements regarding bones in the human body :
1. They consist of 80% solid matter and 20% water.
2. Solid matter in the bones is made mainly of cartilage.
3. Impregnation of salts including carbonates and phosphates of lime imparts hardness to the bones.
4. In old age, the proportion of lime decreases and bones become brittle and break easily.
Of these statements :
(a) 1, 2 and 3 are correct
(b) 2 and 4 are correct
(c) 2 and 3 are correct
(d) 1, 2, 3 and 4 are correct