Discussion
Ram rise against Mach number in air at 250 K.
| Mach number | Ram factor | Rise (K) |
|---|---|---|
| 0.2 | 1.008 | 2 |
| 0.4 | 1.032 | 8 |
| 0.6 | 1.072 | 18 |
| 0.8 | 1.128 | 32 |
What does the pattern in the last column show?
Answer: D
Correct answer: The rise grows with the square of Mach number
Read the last column against the Mach numbers: doubling from 0.2 to 0.4 takes the rise from 2 K to 8 K, a factor of four, and doubling again to 0.8 takes it to 32 K, another factor of four. That is the signature of a square law, and it follows directly from the relation \( \Delta T = 0.2M^2T_s \).
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