This document discusses how to prepare for and write open book exams. It provides tips on the types of questions that may be asked, materials that can be used, and exam etiquette. Some key points: - Open book exams test higher-order thinking skills like application, analysis, and critical thinking rather than just memory. - Students should thoroughly study as with regular exams and carefully plan what materials to print. Having well-organized notes is especially important. - Questions may involve explaining concepts, justifying ideas, commenting on problems, or designing systems rather than just looking up answers. - Proper time management and organization of materials is crucial, as it is easy to spend too much time searching for answers.

1. DR. TS PRADEEP KUMAR, PROFESSOR, COMPUTER SCIENCE AND ENGG. VIT CHENNAI, 24TH APRIL 2021
OpenBookExamination
How to write Exam paper with Books Open?

2. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• Usually OBE were of three types
• Limited Time exams or Traditional Sit
Down Exams
• Take Home exams (Even 24 hour exams
are possible)
• Sit - Down exam at home with limited
time to attend and upload the answers.
(Anna University Exams might be
coming under this model)
Open Book Exams (OBE)

3. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• To test the Higher Order thinking skills (HOTS) of the students or learners
• To apply knowledge, analyse, understand and think critically.
• Whenever the university/college just not wanted to test students memory alone.
• Due to pandemics like this.
• Western Universities and some other Indian Institutions already follow the Open Book Exam
models.
WhyOpenBookexams?

4. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• Explanation of architecture or program or functional block for an application that you might
not have heard of.
• Justification of any concept (Which you may not find it in the book or elsewhere)
• Comment on any real world problems (That is prevalent in the society)
• Analyse the bugs or output of a program. (C,C++ or Java).
• Design of a system or application or framework.
• Based on a graphical analogy, you need to explain a concept. (Concept may be there in book,
but unless you understand the analogy, you cannot reuse the concept).
• Problem solving (algorithms, flowcharts, graphs, pie charts, etc…)
QuestiontypesyoumayexpectinOBE

5. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• What materials or resources students can take print outs
• Your class notes or your prepared notes (This is mandatory, as your faculty member might
have given lot of inputs on the course contents)
• Use textbooks or parts of textbook (Please don’t forget to take the print out of the
glossary/appendix). If internet is allowed or PDFs are allowed, then you can store as many
book as possible in a folder. But still having a print out of at least one book is advisable (If in
case internet fails or Power shutdown or if battery of your laptop fails, or any other issues).
• Usually Internet will not be allowed (But as per the circular from some universities, they
allow internet usage also during the exams.)
• Presentation slides (Take print out of 4 slides per page to optimise)
Materialsthatcanbeused

6. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• OBE are very easy.
• You don’t have to study at all.
• You can right away copy from the books.
• Better if we carry more books and materials.
• Internet is there, so we can find the answers easily.
SomemythsaboutOBE

7. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• Study well as you do for regular exams (while you prepare for exams, don’t forget to take
notes)
• Plan what materials to be taken print outs. (The first priority should be your handwritten
notes, as you know where you have written what content? So its easy to find during the exams.)
• If internet is allowed, bookmark the famous pages or eBooks. (Download the PDFs or
screenshots for important ones). Beware, internet may divert you sometimes to different
pages when you are intending for a question.
• If your syllabus is unit wise, prepare a master table that tells which book refers to which unit
(if possible include page numbers in the table as well). Name your books as B1, B2, B3, etc. Your
notes as N1, N2, N3, etc. and References as R1, R2, R3, etc. The table you prepare should have
these informations so that you can look into it when there is a need.
PreparingforOBE

8. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• Do not expect or anticipate any questions.
• Time management is important (If you know the answer to a question and in that case, you
need not refer the book, you can write it on your own. ). As per the statistics, the students
spend more time in searching for an answer during OBE.
• Organise notes or materials by topic.
• Don’t over answer as the books carry more information. Be to the point.
• Always write the known answers first.
• Fully charge your laptops or tablets or mobile phones if your exam is through a software or
an App.
PreparingforOBE

9. DR. T S PRADEEP KUMAR, 24TH APRIL 2021
• It could be an online exam, so these etiquettes should be followed,
• Never violate the rules in front of the camera. Most of the software for exams are AI based,
they will report the violation to the universities or institutions (Sometimes the student may not
be aware that they violated, but the software record the violations).
• Dont let anyone along with you either nearby or opposite to you…
• Never move your head away from the camera.
• Dont use screen mirroring, as most of the software detects screen mirroring. They just read all
the ports like HDMI, USB, USB-C, Ethernet, etc.
• If internet is not allowed, minimising the exam screen will exit from the test. So read the
rules carefully before you minimise the screen or use the Alt + Tab in your computer.
Etiquetteswhilewritingtheexam

10. SomeSampleQuestions-Ihavetakensomecommon
questionswhereallofyoumayunderstand.
Can you find the answer for this question from any book or by
yourself
There are 7 friends who visits temple regularly. 1st person
visits the temple daily. The 2nd person visits once in 2 days,
the 3rd person once in 3 days and so on. Identify the minimum
number of days where all the 7 of them meet at the temple.
Build a logic and develop a “C” program for this problem.

12. WRITE A “C” PROGRAM ON
SOLVING FACTORIAL OF A GIVEN
NUMBER

13. Question2
You are waiting in an Automated Teller Machine (ATM) for a transaction. Debit
card is inserted in the ATM and waiting for 60 seconds without touching anything
in the machine. After 60 seconds there is beep and the card released from the
machine. What device is used in this scenario? Draw its circuit diagram.

15. DEFINE AND EXPLAIN A WATCH
DOG TIMER?

16. Question3
As indicated in the above figure, there are
various electronics components are
connected in a car. As an embedded system
developer, you are supposed to design the
inter car connectivity between various
components indicated in the above figure.
What kind of bus protocols are possible for
this application and which protocol suits the
best and draw its possible frame structure
and analyse its performance metrics.

17. Question4
Household in Tamil Nadu consumes electricity in the following
way.
0 to 100 units of electricity is Free
101 to 500 units, Rs 5.60/unit.
501 to full, it is 9.80/unit.
Help the TNEB to calculate the electricity bill for a given house.
Write a C program to find the cost of electricity bill.

18. Question5

19. Question6
Two coils A and B are connected in series across a 200V, 50Hz ac supply. The
power input to the circuit is 2kW and 1.15kVAr. If the resistance and reactance
of coil A are 5Ω and 8Ω respectively calculate the resistance and reactance of
coil B. Also calculate the active and reactive power consumed by coil A and coil
B separately.

20. Question7

21. Question8
Two SI engines having the same swept volume and compression ratio
are running at the same speed at wide open throttles (full throttle
condition). One engine operates on two stroke cycles and other on the
four stroke cycles.
i) Draw pressure-crank angle diagrams for 2 crank revolutions,
ii) Which engine will have high heat release rate,
iii)Which has the greater power output,
iv) which has high e
ffi
ciency and
v) which has high knocking tendency.
Explain in details.

22. Question9

23. Question9
The following picture shows the MicaZ
radio board that supports IEEE802.15.4
Mac. There are various Chips (IC’s) in
the board that communicates to other
ICs in the circuit. Which communication
bus in helpful in inter connectivity
between the ICs? Illustrate atleast two of
them with their architecture.

24. Question10
There are 20 Sensor nodes to be deployed in a nuclear reactor to
alert in case of rise in the radiation level in the reactor. The reactor
is placed in a 20m*20m housing area. You need to design totally 4
energy efficient clusters where the alert have to be generated by
the cluster heads. The transmission range of the cluster is just
7metres. The average initial energy of the nodes is 5
joules. Design the network and select the Cluster heads in each
cluster. (NB: You can assume values or parameters in case of any
insufficiency of data.)

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