Volume and surface area - Quantitative Aptitude (MCQ) questions

1)   A cylinder having radius 1 m and height 5 m, is completely filled with wine. In how many conical flasks can this wine be filled into if the flask radius and height is 50 cm each?
- Published on 12 Apr 17

a. 50
b. 500
c. 120
d. 160
Answer  Explanation 

ANSWER: 120

Explanation:
volume and surface area


2)   Ajay has 2 cones with him. 1st cone has radius twice the other and height half the other. What is volume ratio of 1st and 2nd cones?
- Published on 12 Apr 17

a. 2:1
b. 3:4
c. 1:2
d. 4:3
Answer  Explanation 

ANSWER: 1:2

Explanation:
volume and surface area


3)   The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12cm each. The radius of the sphere is.
- Published on 11 Apr 17

a. 12cm
b. 3cm
c. 6cm
d. 4cm
Answer  Explanation 

ANSWER: 6cm

Explanation:
volume and surface area


4)   The area of the base of a right circular cone is 154cm2 and its height is 14cm. Taking π = 22/7, the curved surface of the cone is
- Published on 11 Apr 17

a. 154 x 5 cm2
b. 154 x 7 cm2
c. 11 cm2
d. 5324 cm2
Answer  Explanation 

ANSWER: 154 x 5 cm2

Explanation:
volume and surface area


5)   The number of coins of radius 0.75 cm and thickness 0.2 cm to be melted to make a right circular cylinder of height 8 cm and base radius 3 cm is
- Published on 11 Apr 17

a. 640
b. 460
c. 500
d. 600
Answer  Explanation 

ANSWER: 640

Explanation:
volume and surface area


6)   If the areas of the three adjacent faces of a cuboidal box are 120cm2, 72cm2 and 60cm2 respectively, find the volume of the box.
- Published on 11 Apr 17

a. 7200 cm3
b. 720 cm3
c. 864 cm3
d. (72)2 cm3
Answer  Explanation 

ANSWER: 720 cm3

Explanation:
volume and surface area


7)   A room is 6m long, 5m broad and 4m high. The maximum length of rod that can be kept in the room is
- Published on 05 Apr 17

a. 61m
b. 16m
c. 36m
d. 77m
Answer  Explanation 

ANSWER: 77m

Explanation:
volume and surface area


8)   Three solid metallic balls of diameter 3cm, 4cm and 5m are melted into a solid sphere. The radius of new sphere is
- Published on 05 Apr 17

a. 6 cm
b. 4 cm
c. 3 cm
d. 5 cm
Answer  Explanation 

ANSWER: 3 cm

Explanation:
volume and surface area


9)   Ramesh’s bedroom has a rectangular floor. He built the 4 walls of this room in Rs. 24000 at the rate of Rs. 20 per sq. m. What is height of his bedroom if perimeter of the floor is 150m?
- Published on 03 Apr 17

a. 5 m
b. 8 m
c. 15 m
d. 16 m
Answer  Explanation 

ANSWER: 8 m

Explanation:
volume and surface area


10)   2 cm thick 14 metal plates are kept exactly one above the other. On the top plate a hemisphere of diameter 6cm is kept. This just covers the top plate. What is the volume of the entire object?
- Published on 03 Apr 17

a. 360π cu.cm.
b. 144π cu.cm.
c. 81 cu.cm
d. 270π cu.cm.
Answer  Explanation 

ANSWER: 270π cu.cm.

Explanation:
volume and surface area


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