CDS Exam Previous Year Papers With Detailed Solution

CDS Exam Previous Year Papers With Detailed Solution
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CDS Exam Previous Year Papers With Detailed Solution

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bad cholesterol because they can transport their content of lipid molecules into artery walls, attract macrophages, and thus drive atherosclerosis. In contrast, HDL particles though far different from cholesterol per se are often called good cholesterol or healthy cholesterol because they can remove lipid molecules from macrophages in the wall of arteries. 2. Which of the following pairs of vitamin and disease is are correctly matched 1. Vitamin A Rickets Vitamin 2. B1 Beriberi 3. Vitamin C Scurvy
a 2 only
b 2 and 3 only c 1 and 3 only d 1,2 and 3
Answer B
Explanation Rickets is softening and weakening of bones in children, which is due to inadequate vitamin D. Beriberi is a disease in which the body does not have enough thiamine or vitamin B1. It is also a nutritional disorder and is characterized by impairment of the nerves and heart. Scurvy is a condition caused by a severe lack of vitamin C in the diet. 3. The rate of change of momentum of a body is equal to the resultant a energy b power c force
d impulse Answer C
Explanation Newton's Second Law link to Newton's laws. The rate of change of momentum of an object is directly proportional to the resultant force applied and is in the direction of the resultant force. The resultant force is equal to the rate of change of momentum. 4. After a hot sunny day, people sprinkle water on the roof-top because a water helps air around the roof-top to absorb the heat instantly b water has lower specific heat capacity c water is easily available
d water has large latent heat of vaporization Answer A
Explanation People sprinkle water on the roof because when this water evaporated they take up some of the heat from the roof for the process of evaporation. As some of the heat gets released the roof becomes cooler making the rooms also cool. 5. Consider the following map of India
The areas marked in the map given above account for the production of which one of the