# Parts Of A Flower

Updated On: 28-5-2020

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A right circular cylindrical tunnel of diameter 2m and length 40m is to be constructed from a sheet of iron. The area of the iron sheet required in

m^2,

is (a)

40pi

(b)

80pi

(c)

160pi

(d)

200pi

The height of sand in a cylindrical-shaped can drops 3 inches when 1 cubic foot of sand is poured out. What is the diameter, in inches, of the cylinder? (a)

(24)/(sqrt(pi))\

(b)

(48)/(sqrt(pi))

(c)

(32)/(sqrt(pi))

(d)

(24)/pi

A cylinder with radius

r\

and height

h

is closed on the top and bottom. Which of the following expressions represents the total surface area of this cylinder? (a)

2pir\ (r+h)

(b)

pir\ (r+2h)

(c)

pir\ (2r+h)

(d)

2pir^2+h

The height

h

of cylinder equals the circumference of the cylinder. In terms of

h ,

what is the volume of the cylinder? (a)

(h^3)/(4pi)

(b)

(h^2)/(2pi)\

(c)

(h^3)/2

(d)

pih^3

The volume of a cylinder of radius

r

is

1/4

of the volume of a rectangular box with a square base of side length

xdot

If the cylinder and the box have equal heights, what is

r

in terms of

x ?

(a)

(x^2)/(2pi)

(b)

x/(2sqrt(pi))

(c)

(sqrt(2x))/pi

(d)

pi/(2sqrt(x))

If the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder? (a) 4 (b)

1/(sqrt(2))

(c) 2 (d)

1/2

In a cylinder, if radius is halved and height is doubled, the volume will be same (b) doubled (d) halved (d) four times

If the height of a cylinder is doubled and radius remains the same, then volume will be <br> (a) doubled <br> (b) halved <br> (c) same <br> (d) four times

If the radius of a cylinder is doubled and the height remains same, the volume will be (a) doubled (b) halved (c) same (d) four times

The number of surfaces of a hollow cylindrical object is (a) 1 (b) 2 (c) 3 (d) 4

FAQs on Morphology Of Flowering Plants

Regions Of The Root

Modifications Of Root

Modifications Of Stem

Venation

Types Of Leaves

Phyllotaxy

Modifications Of Leaves

Racemose

Cymose

Parts Of A Flower

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