Yes, in the TS EAMCET (and most multiple-choice exams), you can select the same option for all remaining questions after attempting the questions you know. There's no penalty for incorrect answers in the TS EAMCET, so guessing can't hurt your score.

Elaboration:

No Negative Marking:

The TS EAMCET (and AP EAMCET) does not have negative marking for incorrect answers. This means that if you select the same option for all remaining questions and some of them are correct, you will still receive marks for those correct answers.

Randomization:

In exams with no negative marking, some students find it beneficial to answer all questions, even if they are unsure, by selecting a single option for all questions. This strategy is more likely to yield a higher score than leaving unanswered questions, especially if the exam has a large number of questions.

Time Management:

If you have limited time and are confident in your ability to answer a certain number of questions, you can focus on those and then select the same option for the remaining questions to maximize your score.

Considerations:

While this strategy can be helpful, it's also important to consider the potential benefits of attempting questions you are unsure about, as there's no downside to guessing.