| Date post: | 15-Jul-2015 |
| Category: |
Education |
| Upload: | ashok-pujari |
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Options
1) 2/3 Лr2
3) 3/2Лr3 4) 2/3Лr3
2) 4/3Лr3
Ans :4) 2/3Лr3
Question : The formula to find the volume of hemisphere is------- CzsÀðUÉÆüÀzÀ WÀ£À¥sÀ®ªÀ£ÀÄß PÀAqÀÄ»rAiÀÄ®Ä §¼À̧ ÀĪÀ ¸ÀÆvÀæ ------
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a) 2/3 Лr2
c) 3/2Лr3
d)2/3Лr3
b) 4/3Лr3
Ans :
Question : The formula to find the volume of hemisphere is
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a. 3cc
c. 27cc
d. 81cc
b. 9cc
Ans :
Question : A cylinder and a cone have the same radius and height, if the volume of cylinder is 81cc the volume of cone is
Options
(A) 2πr ( r + h )
(C) πr ( r + l )
(D) 1 πr 2 h.3
(B) πr ( r + h)
Ans :
Question : The formula used to find the total surface area of a cone is
Options
(A) 280 sq.cm
(C) 880 sq.cm
(D) 140 sq.cm
(B) 1760 sq.cm
Ans :
Question :The circumference of a hollow cylindrical pipe is 14 cm and the height is 20 cm. The lateral surface area of the pipe is
Options
(A) 2464 sq.cm
(C) 88 sq.cm
(D) 616 sq.cm.
(B) 154 sq.cm
Ans :
Question : The total surface area of a sphere with diameter 14 cm is
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(A) 550 cubic m
(C) 35 cubic m
(D) 110 cubic m
(B) 70 cubicm
Ans :
Question : The height of water level in a circular well is 7 m and its diameter is 10 m. Volume of water stored in the well is
Options
(A) πrh
(C) 2πrh
(D) 2πr 2 h.
(B) πr 2 h
Ans :
Question : Formula for Lateral surface area of a cylinder is
Options
(A) 396 sq.cm
(C) 78 sq.cm
(D) 54 sq.cm.
(B) 792 sq.cm
Ans :
Question : The curved surface area of a cone, whose circumference of the base is 66 cm and slant height is 12 cm, is
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(A) length
(C) area of surface
(D) volume
(B) breadth
Ans :
Question : A solid plastic sphere is melted and converted to a solid cube, then there will be no change in its
Options
(A) 1540 c.c.
(C) 164 c.c
(D) 144 c.c
(B) 15·4 c.c.
Ans :
Question : Area of the base of a circular cylinder is 154 sq.cm and height is 10 cm. Then volume of cylinder is
Options
(A) 4πr 2
(C) 3πr 2
(D) πr 2 .
(B) 2πr 2
Ans :
Question : Total area of solid hemisphere is
Options
(A) 2 πrh
(C) 2 πr 2 h
(D) 2 πr ( r + h ).
(B) πr 2 h
Ans :
Question : The formula to find the curved surface area of a cylinder is
Options
(A) 5 cm
(C) 12 cm
(D) 14 cm.
(B) 10 cm
Ans :
Question : The curved surface area of a cone is 440 sq.cm. If the slant height is 14 cm, then its radius is
Options
(A) 3 : 1
(C) 3 : 1
(D) 2 : 1.
(B) 2 : 1
Ans :
Question : The volumes of a cone and a cylinder with same height are equal. Then the ratio between their radii is
Options
(A) lateral surface area of a cylinder
(C) volume of a cylinder
(D) surface area of a sphere.
(B) total surface area of a cylinder
Ans :
Question : A = 2πr ( r + h ). This formula can be used to find
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(A) cone
(C) hemisphere
(D) sphere.
(B) cylinder
Ans :
Question : The solid described by revolution of a semicircle about a fixed diameter is
Options
(A) 30 cm 3
(C) 90 cm 3
(D) 270 cm 3
(B) 45 cm 3
Ans :
Question : The volume of a cone is 90 cm 3 . The volume of a cylinder whose height and radius is same as that of the cone is
Options
(A) V = πr 2 h/3
(C) V = 2πr 3 /3
(D) V = 3πr 3 /4
(B) V = 4πr 3/3
Ans :
Question : Volume of a hemisphere can be calculated by using the formula
Options
(A) 15400 sq.cm
(C) 1540 sq.cm
(D) 1550 sq.cm.
(B) 154 sq.cm
Ans :
Question : The volume of a cylinder is 1540 cm 3 . Its height is 10 cm. The area of its base is
Options
(A) Icosahedron
(C) Hexahedron
(D) Tetrahedron
(B) Dodecahedron
Ans :
Question : A polyhedral graph is given in the figure. The polyhedral solid obtained by this is
Options
(A) 2 πrh
(C) πr ( r + h )
(D) 2 πr ( r + h )
(B) 2 πr 2 ( r + h )
Ans :
Question : The formula used to find the total surface area of a solid cylinder is
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(A) 0
(C) 2
(D) 3.
(B) 1
Ans :
Question :The number of plane surfaces in a solid cone is
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(A) 8 : 27
(C) 3 : 2
(D) 2 : 3
(B) 4 : 9
Ans :
Question : Ratio between the radii of two solid spheres is 2 : 3, then the ratio between their volumes is
Options
(A) 6 cm
(C) 12 cm
(D) 18 cm.
(B) 9 cm
Ans :
Question : The volume of a solid cone is 60 cm 3 and the area of the base is 20 cm 2 . Then the height is
Options
(A) 44 cm
(C) 11 cm
(D) 7 cm
(B) 22 cm
Ans :
Question : A metal sheet of length 2 m and breadth 44 cm is rolled to form a hollow pipe of length 2 m. Then the radius of that pipe is
Options
(A) cone
(C) sphere
(D) cube.
(B) cylinder
Ans :
Question : The revolution of a right angled triangle about one of the sides containing the right angle generates a solid called
Options
(A) 2 πrh
(C) πrh
(D) πrl .
(B) 2 πr ( r + h )
Ans :
Question : The total surface area of a cylinder is
Options
(A) 516 cm 2
(C) 88 cm 2
(D) 616 cm 2 .
(B) 416 cm 2
Ans :
Question : The surface area of a sphere whose radius is 7 cm, is
Options
A) 4/3 cm
C) 8cm
D) 12cm
B) 2cm
Ans :
Question : Height of a cylindrical ice cream cup is 4cm.If a cone of same radius is used ,then its height is
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A) 7cm
C) 14cm
D) 14.2cm
B) 7.5cm
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Question : If the surface area of a sphere is 616 sq.cm then its diameter is
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1) 3cc
3) 27cc 4) 81cc
2) 9cc
Ans :3) 27cc
Question : A cylinder and a cone have the same radius and height, if the volume of cylinder is 81cc the volume of cone is …. MAzÉà wædå ªÀÄvÀÄÛ JvÀÛgÀªÀ£ÀÄß ºÉÆA¢gÀĪÀ ¹ É̄AqÀgï ªÀÄvÀÄÛ ±ÀAPÀÄUÀ¼À°è ¹ É̄AqÀgï£À WÀ£À¥sÀ® 81 WÀ̧ ÉA«Äà DzÀgÉ ±ÀAPÀÄ«£À WÀ£À¥sÀ®-----
Options
1) 3 : 2
3) 27 : 8 4) 2 : 3
2) 8 : 27
Ans :2) 8 : 27
Question : The radii to two spheres are the ratio 2:3 then the ratio between their volumes is --------------------
Options
1) 2πr ( r + h )
3) πr ( r + l ) 4) 1 πr 2 h. 3
2) πr ( r + h)
Ans :3) πr ( r + l )
Question :
The formula used to find the total surface area of a cone is
Options
1) 280 sq.cm
3) 880 sq.cm 4) 140 sq.cm.
2) 1760 sq.cm
Ans :4) 140 sq.cm.
Question : The circumference of a hollow cylindrical pipe is 14 cm and the height is 20 cm. The lateral surface area of the pipe is
Options
1) 2464 sq.cm
3) 88 sq.cm 4) 616 sq.cm.
2) 154 sq.cm
Ans :4) 616 sq.cm.
Question :
The total surface area of a sphere with diameter 14 cm is
Options
1) 550 cubic m
3) 35 cubic m 4) 110 cubic m.
2) 70 cubicm
Ans :1) 550 cubic m
Question : The height of water level in a circular well is 7 m and its diameter is 10 m. Volume of water stored in the well is
Options
1) πrh
3) 2πrh 4) 2πr 2 h.
2) πr 2 h
Ans :3) 2πrh
Question :
Formula for Lateral surface area of a cylinder is
Options
1) 396 sq.cm
3) 78 sq.cm 4) 54 sq.cm
2) 792 sq.cm
Ans :1) 396 sq.cm
Question : The curved surface area of a cone, whose circumference of the base is 66 cm and slant height is 12 cm, is
Options
1) length
3) area of surface
4) volume.
2) breadth
Ans :4) volume.
Question : A solid plastic sphere is melted and converted to a solid cube, then there will be no change in its
Options
1) 1540 c.c.
3) 164 c.c. 4) 144 c.c.
2) 15·4 c.c.
Ans :1) 1540 c.c.
Question : Area of the base of a circular cylinder is 154 sq.cm and height is 10 cm. Then volume of cylinder is
Options
1) 4πr 2
3) 3πr 2 4) πr 2 .
2) 2πr 2
Ans :3) 3πr 2
Question : Total area of solid hemisphere is
Options
1) 2 πrh
3) 2 πr 2 h 4) 2 πr ( r + h ).
2) πr 2 h
Ans :1) 2 πrh
Question :
The formula to find the curved surface area of a cylinder is
Options
1) 5 cm
3) 12 cm 4) 14 cm.
2) 10 cm
Ans :2) 10 cm
Question : The curved surface area of a cone is 440 sq.cm. If the slant height is 14 cm, then its radius is
Options
1) 3 : 1
3) 1:3 4) 2 : 1.
2) 2 : 1
Ans :3) 1:3
Question : The volumes of a cone and a cylinder with same height are equal. Then the ratio between their radii is
Options
1) lateral surface area of a cylinder3) volume of a cylinder
4) surface area of a sphere.
2) total surface area of a cylinder
Ans :2) total surface area of a cylinder
Question :
A = 2πr ( r + h ). This formula can be used to find
Options
11V = πr 2 h 3
3) V = 2πr 3 3
4) V = 3πr 3
4
2) V = 4πr 3
3
Ans :3) V = 2πr 3 3
Question : Volume of a hemisphere can be calculated by using the formula
Options
1) cone
3) hemisphere 4) sphere.
2) cylinder
Ans :4) sphere.
Question :
The solid described by revolution of a semicircle about a fixed diameter is
Options
1) 30 cm 3
3) 90 cm 3 4) 270 cm 3 .
2) 45 cm 3
Ans :4) 270 cm 3 .
Question : The volume of a cone is 90 cm 3 . The volume of a cylinder whose height and radius is same as that of the cone is
Options
1) 15400 sq.cm
3) 1540 sq.cm 4) 1550 sq.cm.
2) 154 sq.cm
Ans :2) 154 sq.cm
Question :
The volume of a cylinder is 1540 cm 3 . Its height is 10 cm. The area of its base is
Options
1) 2 πrh
3) πr ( r + h ) 4) 2 πr ( r + h )
2) 2 πr 2 ( r + h )
Ans :4) 2 πr ( r + h )
Question :
The formula used to find the total surface area of a solid cylinder is
Options
1) 0
3) 2 4) 3.
2) 1
Ans :2) 1
Question :
The number of plane surfaces in a solid cone is
Options
1) 8 : 27
3) 2 : 3 4) 3:2
2) 4 : 9
Ans :1) 8 : 27
Question : Ratio between the radii of two solid spheres is 2 : 3, then the ratio between their volumes is
Options
1) 6 cm
3) 12 cm 4) 18 cm.
2) 9 cm
Ans :2) 9 cm
Question : The volume of a solid cone is 60 cm3 and the area of the base is 20 cm2 . Then the height is
Options
1) 44 cm
3) 11 cm 4) 7 cm.
2) 22 cm
Ans :4) 7 cm.
Question : A metal sheet of length 2 m and breadth 44 cm is rolled to form a hollow pipe of length 2 m. Then the radius of that pipe is
Options
1) 2 πrh
3) sphere 4) cube
2) cylinder
Ans :1) 2 πrh
Question : The revolution of a right angled triangle about one of the sides containing the right angle generates a solid called
Options
1) 2 πrh
3) πrh 4) πrl .
2) 2 πr ( r + h )
Ans :1) 2 πrh
Question :
The lateral surface area of a cylinder is
Options
1) 516 cm 2
3) 88 cm 2 4) 616 cm 2
2) 416 cm 2
Ans :4) 616 cm 2
Question :
The surface area of a sphere whose radius is 7 cm, is
Options
1) πrl
3) 2 πrh 4) πr(r+l)
2) 2 πr ( r + h )
Ans :4) πr(r+l)
Question : Formula to find T.S.E of cone is ------------
Options
1)
3) 4)
2)
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Question : Relation between a cone and a cylinder with same radius and height isA) cone = cylinder B) 3 cone = cylinder C) cone =3 cylinder D) All the above
Options
1)
3) 4)
2)
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Question : The lateral surface area of a roller is 5sqm. Find the number of revolutions that it doesto cover a feild of 1000 sqmA) 100 B) 200 C) 50 D) 500
Options
1)
3) 4)
2)
Ans :
Question : Formula to find the volume of a hemisphere is ———A) 3 πr2h B) 4π r2h C) 4 π r3 D) 3π r3
4 3 3 4
Options
1)
3) 4)
2)
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Question : Total surface area of two identical solid hemispheres is 600cm2.The area of the sphere formed by them
isA) 600cm2 B) 400cm2 C) 300cm2 D) 200cm2
Options
1)
3) 4)
2)
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Question : Total surface area of a cylinder is ——-
Options
1)
3) 4)
2)
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Question : Height of a cylindrical ice cream cup is 4cm.If a cone of same radius is used ,then its height isA) 4/3 cm B) 2cm C) 8cm D) 12cm
Options
1)
3) 4)
2)
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Question : If the surface area of a sphere is 616 sq.cm then its diameter isA) 7cm B) 7.5cm C) 14cm D) 14.2cm
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