Selected MCQ

Current Question
A solid consists of a cylinder with a cone on top. If dimensions are given, what is total volume?
  • A. 2h
  • B. 4h
  • C. 2h/3
  • D. 3h/2
Correct Answer: C
Explanation:
Volume = cylinder + cone.
Related Question 1
The radius of a cylinder is half its height. Inner volume is 616 cm³. Find approximate litres.
  • A. 1.4
  • B. 1.5
  • C. 1.7
  • D. 1.9
Correct Answer: B
Explanation:
Convert cm³ to litres → 616 ≈ 0.616 L (~1.5 approx scaled).
Related Question 2
The radius of a cone is 3 cm, and the height is 4 cm. Find its volume.
  • A. 12π cm³
  • B. 6π cm³
  • C. 8π cm³
  • D. 10π cm³
Correct Answer: A
Explanation:
Volume = 1/3 πr²h.
Related Question 3
A cylinder has a radius of 7 cm and a height of 3 cm. Find the total surface area.
  • A. 308 cm²
  • B. 220 cm²
  • C. 440 cm²
  • D. 132 cm²
Correct Answer: C
Explanation:
TSA = 2πr(r+h).
Related Question 4
The radius of a cylinder equals that of a sphere. Compare their volumes.
  • A. 4/3 times
  • B. 2/3 times
  • C. Equal
  • D. Equal to diameter
Correct Answer: A
Explanation:
Sphere volume = 4/3 πr³ vs cylinder πr²h.
Related Question 5
A rectangular area is drawn to a scale of 1:500. If the drawing dimensions are given, what is the actual area?
  • A. 1200 m²
  • B. 1500 m²
  • C. 12000 m²
  • D. 15000 m²
Correct Answer: D
Explanation:
Area scales as the square of the scale factor → actual area = 15000 m².