4431: The philosophical systems of the Hindus were propounded and properly codified in the:
(a) Vedic age
(b) Maurya age
(c) Kanishka age
(d) Gupta age
4432: With reference to 'stem cells', frequently in the news, which of the following statements is/are correct?
1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
4433: There are 10 identical coins and each one of them has H engraved on its one face and T engraved on its other face. These 10 coins are lying on a table and each one of them has H face as the upper face.
In one attempt, exactly four (neither more nor less) coins can be turned upside down. What is the minimum total number of attempts in which the T faces of all the 10 coins can be brought to be the upper faces ?
4434: Given :
Humidity : H
High : A
Wind Velocity : W
Low : B
Temperature : T
The desert cooler is an appropriate cooling device for regions where
(a) HAWATB
(b) HBWBTA
(c) HAWBTB
(d) HAWATA
4435: Which one of the following statements is not correct?
(a) Rourkela Steel Plant, the first integrated steel plant in the Public sector of India was set up with the Soviet Union collaboration.
(b) Salem Steel Plant is a premier producer of stainless steel in India.
(c) Maharashtra Eletrosmelt Ltd is a subsidiary of the Steel Authority of India Ltd.
(d) Visakhapatnam Steel Plant is a unit of the Rashtriya Ispat Nigam Ltd.