MCQ on General Science for WBCS/SSC/Misc/etc

Question for Practice on General Science

    (a) One-half        (b) One-third        (c) One-fourth        (d) One-sixth

2. Which one is used to alter AC current to DC current ?

1. With the increase of weather temperature the speed of sound :

    (a) increases       (b) decreases         (c) remains       (d) None of these

2. In which medium speed of sound would remain higher in the alternatives ?