Discussion
A tank is filled at 10 litres per minute and drained at 4 litres per minute. At what rate does its contents accumulate?
Answer: D
Correct answer: 6 litres per minute
\[ \frac{\mathrm{d}V}{\mathrm{d}t} = \dot{V}_{in} - \dot{V}_{out} = 10 - 4 = 6\ \mathrm{L/min}. \] Accumulation is what is left over when the outflow is subtracted from the inflow, and a positive value means the tank is filling. Adding the two rates gives the 14 offered, which would describe two streams entering rather than one entering and one leaving.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development