There is no technique like that
you just have to balance your time . moreover read the passage thoroughly and understand.the questions that will be provided will be from the extract itself
1 5 1
1) First of all , read the passage completely.
2) Read the paragraph no.of times till u understand the summary
3) You may be not knowing the correct answer for the questions.
    ( you can know the answer perfectly , if you understand the passage
4) write the perfectly suitable answer precisely in one or two lines.
its right, there is no technique..just read it properly,think about it and then answer the questions.