CBSE Questions for Class 9 Maths Surface Areas And Volumes Quiz 9 - MCQExams.com

A brick whose length, breadth and height are $$5m, 6m$$, and $$7m$$ respectively. Find the surface area of the brick.
  • $$214\ m^2$$
  •  $$202\ m^2$$
  •  $$201\ m^2$$
  • $$210\ m^2$$
The radius of a hemisphere is $$10\ cm$$. Calculate it's volume.
  • $$3125.53$$ $$cm^3$$
  • $$2095.24$$ $$cm^3$$
  • $$3005.35$$ $$cm^3$$
  • $$2672.18$$ $$cm^3$$
What is the volume of the hemisphere with radius $$21$$ cm?
  • $$16404$$ $$cm^3$$
  • $$17404$$ $$cm^3$$
  • $$18404$$ $$cm^3$$
  • $$19404$$ $$cm^3$$
Calculate the surface area of hemisphere having the radius of $$1.4$$ cm.
  • $$1.232\ cm^2$$
  • $$12.32\ cm^2$$
  • $$123.2\ cm^2$$
  • $$1232\ cm^2$$
The largest possible sphere is carved out of a wooden solid cube of side $$7$$ cm. Find the volume of the wood left. $$\left[\text{Use } \displaystyle \pi =\dfrac { 22 }{ 7 }\right]$$
  • $$163.3\ cm^3$$
  • $$164\ cm^3$$
  • $$165\ cm^3$$
  • $$170\ cm^3$$
The diagram shows the cross section of six identical marbles touching each other on a horizontal surface.
If the volume of a mabrle is $$\dfrac{9 \pi}{2} cm^3$$, calculate the length of PQ, in cm.
520273_7220ccc9a3a5481da65193165de6b15b.png
  • 9
  • 27
  • 18
  • 22
Calculate the total surface area of the right circular cylinder shown in the above figure (in square units).

484369.JPG
  • $$\displaystyle 300\pi $$
  • $$\displaystyle 400\pi $$
  • $$\displaystyle 500\pi $$
  • $$\displaystyle 600\pi $$
A closed metallic cylindrical box is 1.25 m high and its base radius is 35 cm. If the sheet metal costs Rs. 80 per m$$^2$$, the cost of the material used in the box is
  • Rs. 281.60
  • Rs. 290
  • Rs. 340.50
  • Rs. 500
If the total surface area of a solid hemisphere is $$462$$ $$\displaystyle { cm }^{ 2 }$$, find its volume.
Note: Take $$\displaystyle \pi =\frac { 22 }{ 7 } $$
  • $$716$$
  • $$718.67$$
  • $$720.87$$
  • $$840$$
The addition of curved surface and circular surfaces are called

477263.PNG
  • area
  • perimeter
  • lateral surface area
  • total surface area
The curved surface area of a right circular cone of radius $$11.3$$ cm is $$355$$ cm$$^2$$. What is its slant height?
  • $$8$$ cm
  • $$9$$ cm
  • $$10$$ cm
  • $$11$$ cm
Find the surface area of a cube in square inches, whose each edge measures $$3$$ inches.
  • 9
  • 18
  • 27
  • 36
  • 54
What is the surface area of a cylinder that has a top and bottom if the height is $$8.5$$ units and the diameter is $$3$$ units?
  • $$18\pi$$ square units
  • $$30\pi$$ square units
  • $$32\pi$$ square units
  • $$36\pi$$ square units
  • $$54\pi$$ square units
Each edge in a cube is $$5\ cm$$. What is the surface area in square cm?
  • $$25$$
  • $$30$$
  • $$100$$
  • $$125$$
  • $$150$$
There are two cuboidal boxes as shown in the given figure. Does Box 1 require the less amount of material to make ?
567156_b87cab64cdaf447186c0c469edda6cd9.png
  • True
  • False
The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
  • $$5:16$$
  • $$1:16$$
  • $$3:16$$
  • None of these
The diameter of a sphere is decreased by $$25$$%. By what percent does its curved surface area decrease?
  • $$53.85 \%$$
  • $$34.85 \%$$
  • $$45.65 \%$$
  • $$43.75 \%$$
Curved surface area of solid sphere is $$24{ cm }^{ 2 }$$. If the sphere is divided into two hemispheres, then the total surface area of one of the hemispheres is :
  • $$12{ cm }^{ 2 }$$
  • $$8{ cm }^{ 2 }$$
  • $$16{ cm }^{ 2 }$$
  • $$18{ cm }^{ 2 }$$
If the radius of a sphere is $$2\ cm$$, then the curved surface area of the sphere is equal to:
  • $$8\pi \ cm^{2}$$
  • $$16 \ cm^{2}$$
  • $$12\pi \ cm^{2}$$
  • $$16\pi \ cm^{2}$$
The total surface area of a solid hemisphere of diameter $$2$$ cm is equal to
  • $$12{cm}^{2}$$
  • $$12\pi {cm}^{2}$$
  • $$4\pi {cm}^{2}$$
  • $$3\pi {cm}^{2}$$
The curved surface area of a right circular cylinder of radius $$1\ cm$$ and height $$1\ cm$$ is equal to 
  • $$\pi$$ $${cm}^{2}$$
  • $$2\pi$$ $${cm}^{2}$$
  • $$3\pi$$ $${cm}^{2}$$
  • $$2$$ $${cm}^{2}$$
The curved surface area of a right circular cylinder whose radius is $$a$$ units and height is $$b$$ units, is equal to
  • $$\pi {a}^{2}b$$ sq.cm
  • $$2\pi ab$$ sq.cm
  • $$2\pi $$ sq.cm
  • $$2$$ sq.cm
The inner curved surface area of a hemispherical dome of a building needs to be painted. If the circumference of the base is $$17.6\ m$$, find the cost of painting it at the rate of Rs.$$5$$ per sq.m
  • Rs.$$246.40$$
  • Rs.$$24.40$$
  • Rs.$$26.40$$
  • None of these
If the surface area of a sphere is $$36\pi {cm}^{2}$$, then the volume of the sphere is equal to
  • $$12\pi {cm}^{3}$$
  • $$36\pi {cm}^{3}$$
  • $$72\pi {cm}^{3}$$
  • $$108\pi {cm}^{3}$$
If the volume of a sphere is $$\cfrac{9}{16}\pi$$ $$cu.cm$$, then its radius is
  • $$\cfrac{4}{3}cm$$
  • $$\cfrac{3}{4}cm$$
  • $$\cfrac{3}{2}cm$$
  • $$\cfrac{2}{3}cm$$
The surface area of two spheres are in the ratio of $$9:25$$. Then their volumes are in the ratio
  • $$81:625$$
  • $$729:15625$$
  • $$27:75$$
  • $$27:125$$
The cub (cubical) volume of a hemisphere, having diameter $$1\text{ cm}$$, will be ............. $$\text{ cm }^{ 3 }$$
  • $$\cfrac { \pi }{ 6 } $$
  • $$\cfrac { \pi }{ 12 } $$
  • $$\cfrac {2 \pi }{ 3 } $$
  • $$\cfrac {4 \pi }{ 3 } $$
If the total surface area of a solid hemisphere is $$12\pi \ {cm}^{2}$$, then its curved surface are is equal to
  • $$6\pi \ {cm}^{2}$$
  • $$24\pi \ {cm}^{2}$$
  • $$36\pi \ {cm}^{2}$$
  • $$8\pi \ {cm}^{2}$$
The total surface area of a solid hemisphere whose radius is $$a$$ units, is equal to
  • $$2\pi {a}^{2}$$ sq. units
  • $$3\pi {a}^{2}$$ sq. units
  • $$3\pi {a}^{}$$ sq. units
  • $$3 {a}^{2}$$ sq. units
How many litres of water does this fish tank will hold ?
708636_7bc993d8c05845aa8735b2f4dded18d9.png
  • $$2.4$$ L
  • $$24$$ L
  • $$4.8$$ L
  • $$100$$ L
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