APTITUDE QUIZ
- The curved surface of a right circular cone of height 15 cm and base diameter 16 cm is:
A.116πcm2116πcm2
B.122πcm2122πcm2
C.124πcm2124πcm2
D.136πcm2136πcm2
- Find the surface area of a 10cm*4cm*3cm brick.
A.154 cm square
B.156 cm square
C.160 cm square
D.164 cm square
- A hemisphere and a cone have equal bases. If their heights are also equal, then the ratio of their curved surface will be :
A.2:12:1
B.1:2–√1:2
- 2–√:12:1
D.3–√:1
- A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights 8g/cm cube, then find the weight of the pipe.
A.3.696 kg
B.3.686 kg
C.2.696 kg
D.2.686 kg
- A cistern 6 m long and 4 m wide contains water up to a breadth of 1 m 25 cm. Find the total area of the wet surface.
A.42 m sqaure
B.49 m sqaure
C.52 m sqaure
D.64 m square
- The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm each. The radius of the sphere is:
A.4 cm
B.6 cm
C.8 cm
D.10 cm
- The volume of the largest right circular cone that can be cut out of a cube of edge 7 cm is:
A.79.8cm379.8cm3
B.79.4cm379.4cm3
C.89.8cm389.8cm3
D.89.4cm389.4cm3
- The radii of two cones are in ratio 2:1, their volumes are equal. Find the ratio of their heights.
A.1:4
B.1:3
C.1:2
D.1:5
- How many cubes of 10 cm edge can be put in a cubical box of 1 m edge.
A.10000 cubes
B.1000 cubes
C.100 cubes
D.50 cubes
- If the volume of two cubes are in the ratio 27:1, the ratio of their edges is:
A.3:1
B.3:2
C.3:5
D.3:7
- If a right circular cone of height 24 cm has a volume of 1232 cm cube, then the area of its curved surface is :
A.450cm2450cm2
B.550cm2550cm2
C.650cm2650cm2
D.750cm2750cm2
- 66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length if the wire in meters will be:
A.76 m
B.80 m
C.84 m
D.88 m
- A cone of height 9 cm with diameter of its base 18 cm is carved out from a wooden solid sphere of radius 9 cm. The percentage of the wood wasted is :
A.45%
B.56%
C.67%
D.75%
- Two right circular cylinders of equal volumes have their heights in the ratio 1:2. Find the ratio of their radii.
A.3–√:13:1
B.7–√:17:1
C.2–√:12:1
D.2:12:1
- A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets into it. The mass of the man is :
A.50 kg
B.60 kg
C.70 kg
D.80 kg
- A swimming pool 9 m wide and 12 m long is 1 m deep on the shallow side and 4 m deep on the deeper side. Its volume is:
A.260
B.262
C.270
D.272
- The slant height of a conical mountain is 2.5 km and the area of its base is 1.54 km square. The height of mountain is :
A.2.3 km
B.2.4 km
C.2.5 km
D.2.6 km
- The perimeter of one face of a cube is 20 cm. Its volume will be:
A.125cm3125cm3
B.400cm3400cm3
C.250cm3250cm3
D.625cm3
- A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m cube) is:
A.4120 m cube
B.4140 m cube
C.5140 m cube
D.5120 m cube
- The cost of the paint is Rs. 36.50 per kg. If 1 kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having 8 feet each side.
A.Rs. 850
B.Rs. 860
C.Rs. 876
D.Rs. 886
-:ANSWERS:-
1.Option D
2.Option D
3.Option C
4.Option A
5.Option B
6.Option B
7.Option C
8.Option A
9.Option B
10.Option A
11.Option B
12.Option C
13.Option D
14.Option C
15.Option B
16.Option C
17.Option B
18.Option A
19.Option D
20.Option C
