MENSURATION - Practice Mode

1) What is the formula for total surface area of a cylinder?

2 Pi r (h + r) Pi r (h + r) Pi rh 2 Pi rh

Correct Answer: 2 Pi r (h + r)

2) What is the volume of a rectangular tank of 30 m length, 20m width and 10m height?

5900 m3 6000 m3 6100 m3 6200 m3

Correct Answer: 6000 m3

3) What is volume of the cylinder whose radius is 7 cm and height 12 cm?

1842 c.c 1844 c.c 1846 c.c 1847 c.c

Correct Answer: 1847 c.c

Explanation:

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation is performed by the inverter. The process is known as rectification, since it "straightens" the direction of current.

4) What is the volume of sphere of radius 7 cm?

1436 cm3 1463 cm3 1346 cm3 1636 cm3

Correct Answer: 1436 cm3

5) What is the formula for finding volume of a hollow cylinder having outer radius 'R' inner radius 'r' and height 'h'?

Pi (R2 - r2)h Pi/3 (R2 - r2) h 2/3 Pi (R2 - r2) h 4/3 Pi (R2 - r2)h

Correct Answer: Pi (R2 - r2)h

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