4551: Which one of the following types of coal contains a higher percentage of carbon than the rest ?

(a) Bituminous coal
(b) Lignite
(c) Peat
(d) Anthracite
4552: The first factory Act restricting the working hours of women and children, and authorizing local governments to make necessary rules was adopted during whose time?

(a) lord Lytton
(b) Lord Ripon
(c) Lord Bentinck
(d) Lord Canning
4553: Which one of the following is caused by the expression of a recessive gene present on sex chromosome ?

(a) Rheumatism

(b) Nervous shock

(c) Muscular dystrophy

(d) Cerebral hemorrhage
4554: By a regulation in 1793, the District Collector was deprived of his judicial powers and made the collecting agent only. What was the reason for such regulation?

(a) Lord Cornwallis felt that the District Collector's efficiency of revenue collection would enormously increase without the burden of other work

(b) Lord Cornwallis felt that Judicial power should compulsorily be in the hands of Europeans while Indians can be given the job of revenue collection in the districts

(c) Lord Cornwallis was alarmed at the extent of power concentrated in the District Collector and felt that such absolute power was undesirable in one person

(d) The judicial work demanded a deep knowledge of India and a good training in law and Lord Cornwallis felt that District Collector should be only a revenue collector
4555: In a particular region in India, the local people train the roots of living trees into robust bridges across the streams. As the time passes, these bridges become stronger. These unique 'living root bridges' are found in

(a) Meghalaya
(b) Himachal Pradesh
(c) Jharkhand
(d) Tamil Nadu