Discussion
Assertion (A): Designers often accept a slightly divergent spiral mode.
Reason (R): The spiral develops slowly and a pilot corrects it without difficulty.
Select the correct answer from the options below.
Answer: A
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the second is why the first is acceptable. A divergent spiral takes tens of seconds to double its bank angle, and a pilot corrects it with a glance and a small aileron input.
The alternative is worse. Strengthening the dihedral effect enough to stabilise the spiral degrades the Dutch roll, which oscillates in seconds and is tiring and sometimes difficult to arrest. Given a choice between a slow divergence and a poorly damped oscillation, the designer takes the divergence.
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