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November 25, 2020 - Daily Quiz

1. Consider the following statements regarding the atmospheric pressure: 1. The weight of the column of air at a given place and time is called air pressure or atmospheric pressure. 2. Atmospheric pressure is measured by an instrument called Thermometer. 3. Atmospheric pressure is measured as force per unit area and the unit used for measuring pressure is called millibar. Which of the above statements is/are correct? (a)  2 only (b) 1 and 3 (c) 2 and 3 (d) 1, 2 and 3 2. The first Indian factories act was in which of the following year? (a) 1881 (b) 1891 (c) 1901 (d) 1911
3. The base of a parallelogram is (p+4). Altitude to the base is (p−3) and the area is (p2−4). Find out its actual area. (a) 48 Sq.units (b) 54 Sq.units (c) 60 Sq.units (d) 66 Sq.units 4. Which of the following type of forest occupies the largest area in India? (a) Tropical Moist Deciduous Forest (b) Sub-tropical Dry Evergreen Forest (c) Montane Wet Temperate Forest (d) Tropical Wet Evergreen Forest  5. Earth's rotation generates which of the following force? (a) Centrifugal force (b) Centripetal force (c) Kinetic Force (d) Static force ANSWERS 1. (b) The atmosphere is held on the earth by the gravitational pull of the earth. A column of air exerts weight in terms of pressure on the surface of the earth. The weight of the column of air at a given place and time is called air pressure or atmospheric pressure. Atmospheric pressure is measured by an instrument called barometer. Nowadays, Fortin’s barometer and Aneroid barometer I are commonly used for measuring air pressure. Atmospheric pressure is measured as force per unit area. The unit used for measuring pressure is called millibar. Its abbreviation is ‘mb’. One millibar is equal to the force of one gram per square centimetre approximately. 2. (a) The Government of India, which was generally pro-capitalist, took some half-hearted and totally inadequate steps to mitigate the sorry state of affairs in the modern factories, many of which were owned by Indians. In this it was only in part moved by humanitarian considerations. The manufacturers of Britain put constant pressure on it to pass factory laws. They were afraid that cheap labour would enable Indian manufacturers to outsell them in the Indian market. The first Indian Factory Act was passed in 1881. The Act dealt primarily with the problem of child labour. It laid down that children below 7 could not work in factories, while children between 7 and 12 would not work for more than 9 hours a day. Children would also get four holidays in a month. The Act also provided for the proper fencing off of dangerous machinery. 3. (c)  4. (a) 5. (a) The earth’s rotation generates centrifugal force. This results in the deflection of air from its original place, causing a decrease in pressure. It is believed that the low-pressure belts of the sub-Polar Regions and the high-pressure belts of the sub-tropical regions are created as a result of the earth’s rotation. The earth’s rotation also causes convergence and divergence of moving air. Areas of convergence experience low pressure while those of divergence have high pressure.  


POSTED ON 25-11-2020 BY ADMIN
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