Discussion
Assertion (A): Ignition timing should be retarded as engine speed rises.
Reason (R): Combustion takes roughly the same time regardless of engine speed.
Select the correct answer from the options below.
Answer: C
The reason is correct and it is precisely why the assertion is wrong: a fixed burn time occupies more crank degrees at speed, so the spark must occur earlier. Advance therefore increases with speed rather than decreasing. Reading the definition literally, rather than recalling a summary, avoids the usual confusion. The shared behaviour explains why these belong together and the differences explain why both exist. The order in which the effects act is what decides the outcome, so it is worth establishing first.
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