Selected MCQ

Current Question
A tank is 7 m long and 4 m wide. What speed is needed for water flow?
  • A. 12 km/hr
  • B. 10 km/hr
  • C. 14 km/hr
  • D. None
Correct Answer: B
Explanation:
Flow rate derived from volume/time.
Related Question 1
A tank 3 m long, 2 m wide, and 1.5 m deep is dug. If soil is spread over a field, what is the rise in level?
  • A. 0.299 cm
  • B. 0.29 cm
  • C. 2.98 cm
  • D. 4.15 cm
Correct Answer: C
Explanation:
Volume ÷ field area.
Related Question 2
A room is 6.24 m long and 4.32 m wide. What is the least number of equal square tiles needed?
  • A. 110
  • B. 124
  • C. 96
  • D. 117
Correct Answer: D
Explanation:
Divide the area using the largest square tile size.
Related Question 3
A river 2 m deep and 45 m wide flows at 3 km/h. What volume of water flows per minute?
  • A. 4500 m³
  • B. 27000 m³
  • C. 3000 m³
  • D. 2700 m³
Correct Answer: A
Explanation:
Volume = area × velocity ⇒ 4500 m³/min.
Related Question 4
A petrol tank lasts 10 days. If consumption patterns change, how long will it last?
  • A. 5 days
  • B. 6 days
  • C. 7 days
  • D. 8 days
Correct Answer: D
Explanation:
Adjusting the consumption rate leads to a duration of 8 days.
Related Question 5
The speed of the boat in still water is 60 km/h, and the current is 20 km/h. Find downstream and upstream speeds.
  • A. 35, 25
  • B. 80, 40
  • C. 40, 60
  • D. 50, 55
Correct Answer: B
Explanation:
Downstream = 80, upstream = 40.