Questions are simple in BITS. Its just your speed that counts.
Many of you take the wrong order of attempting subjects and ultimately do not take a look at all the 150 questions. This will result in losing out on the easy memory based and single line answer questions. The preferred order should be:

1) English and Logical Reasoning
2) Chemistry
3) Mathematics
4) Physics

The reasons are pretty simple. English & Logical Reasoning hardly takes any time to complete and one can easily attempt 20+ questions out of the 25. Then comes Chemistry which is majorly memory based. Either you know the answer or you dont. You save a lot of time by attempting these 2 sections first.

Then Maths - you can spend sufficient time here and complete many questions. And lastly Physics. As Physics is both tricky and lengthy, it is not advisable to start with Physics. But one must also manage the time properly.
Do not spend more than 1 minute on any question, this way you will be able to attempt all 150 questions and still have enough time for the extra 12 questions are try to work on your mistake if any.