Discussion
A gyro bias of 0.5 degrees per hour is left uncorrected for 30 minutes. The heading error is
Answer: B
Correct answer: 0.25 degrees
Bias produces error growing linearly with time, and thirty minutes is half an hour:
\[ \Delta\psi = 0.5\ \mathrm{deg/hr} \times 0.5\ \mathrm{hr} = 0.25\ \mathrm{degrees} \]
Keeping the units consistent is the whole of the problem - the distractor \( 15 \) comes from treating the thirty minutes as thirty hours. Note how much better this gyro is than the one in the earlier item: \( 0.5 \) degrees per hour is roughly \( 0.00014 \) degrees per second, so the heading drifts a quarter of a degree where the other drifted three degrees in five minutes.
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