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Engineering Exams RRB-JE JE (Junior Engineer) DMS (Depot Material Superintendent) CS (Chemical Supervisor - Research) MS (Metallurgical Supervisor - Research) Mathematics 2019 24-May-2019 Paper-1 Shift-2 Easy +1 -0.33 CMA (Chemical and Metallurgical Assistant)
Curved surface area of a cylinder is 440 cm . The base circumference is 44 cm. What is its volume?
Correct Answer: C. 1540 cm3
Explanation: To solve for the volume of the cylinder, we first use the given curved surface area and base circumference to find the height and radius.1. Find the radius (r): The base circumference is 44 cm. Using the formula Circumference = 2πr, we have 44 = 2 \* (22/7) \* r. Solving for r gives r = 7 cm. 2. Find the height (h): The curved surface area is 440 cm². Using the formula CSA = 2πrh, we have 440 = 44 \* h (since 2πr is the circumference). Solving for h gives h = 10 cm. 3. Calculate the volume (V): Using the formula V = πr²h, we substitute the values: V = (22/7) \* 7 \* 7 \* 10. This results in 1540 cm³.The correct answer is 1540 cm³.
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