MCQ - TNPSC JTO

 If the volume of a cube is 729 cm³, what is its TSA?

A hollow cylinder has an inner radius 5 cm and outer radius 6 cm. If its height is 10 cm, find its volume.

Find the surface area of a hemisphere of radius 5 cm.

 If the volume of a cylinder is equal to the volume of a cone, and they have equal base radius, what is the ratio of their heights? 

A box of dimensions 20 cm × 10 cm × 5 cm is filled with sand. How many cylindrical glasses of diameter 5 cm and height 5 cm can be filled from it?

 A solid metal sphere of radius 5 cm is melted into smaller cubes of side 1 cm. How many cubes are formed? 

 A circular plate of radius 7 cm is cut into 4 equal sectors. What is the total length of arc of all sectors? 

The radius of a circular segment is 6 cm and height of the segment is 2 cm. What is its area approximately?

An iron plate of 1 m² has 4 circular holes each of radius 7 cm. What is the remaining area of the plate? 

A workshop floor is made of two rectangles: one 10 m × 5 m, another 6m × 4 m. A circular pit of radius 1 m is at the corner. Find usable floor area. 

 A steel sheet is shaped like a sector with radius 8 m and angle 90°. Find the sheet’s area. 

 A semicircular ring has outer radius 10 cm and inner radius 5 cm. What is its area?

 A steel plate of area 1500 cm² is cut in such a way that two circular holes of radius 5 cm each are removed. What is the new area? 

The area of a square field is 10,000 m². A circular pond is built inside with radius 20 m. What is the remaining area?

A trapezium has bases 10 cm and 20 cm, height 5 cm. From it, a triangle of area 20 cm² is cut. Find the remaining area. 

A shop signboard is made in the shape of an ellipse with major axis 6m and minor axis 4 m. Find its area.