In John Button’s Longman Upper Secondary Comprehension Practice Passages, I found a gem of an advice.
Attempt the summary question first! This can be applied also at the Junior College for the General Paper. Thence, the student is built in to re-read at least some portions of the passage. The re-reading facilitates greater understanding. Moreover, some questions would likely overlap with the short answer questions in the earlier segments. Therefore, this may make them easier to answer.
Of course, under examination conditions, one must continue to manage time well.
Like all things consider giving it a try (under situations of relative low risk)!