MCQ Practice – Class 6 to 10

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Quiz – Surface Areas and Volumes

Time: 00:00

Q1. Curved surface area of cube =

A. 2a² B. 6a² C. 4a² D. 3a²

Q2. Volume of cylinder increased if:

A. r increases B. None C. h increases D. Both increase

Q3. Slant height l of a cone =

A. √(r² + h²) B. rh C. r – h D. r + h

Q4. Volume of frustum =

A. πh(R² − r²) B. πh(R − r) C. (1/2)πR²h D. (1/3)πh(R² + r² + Rr)

Q5. Sphere has how many faces?

A. 1 B. 3 C. 4 D. 2

Q6. TSA of cone =

A. 2πrl B. πr² C. πr(l + r) D. πrl

Q7. CSA of cylinder with h=10, r=7 is:

A. 70π B. 140π C. 100π D. 200π

Q8. Volume of 2 cubes melted together equals:

A. Sum of volumes B. Product of volumes C. Difference of volumes D. Half of total volumes

Q9. Total Surface Area of a hemisphere is:

A. 3πr² B. 4πr² C. πr² D. 2πr²

Q10. Volume of a cone is:

A. 2πr²h B. πr²h C. (1/3)πr²h D. (1/2)πr²h