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[QUOTE=hemalathaijt;195944][B]Panjab University
OCET 2011
Paper : I
Subject : M.Tech. (Instrumentation)
Time : 90 minutes Number of Questions : 75 Maximum Marks : 75
[/B]
[B]Model Question List [/B]: [URL]http://exams.puchd.ac.in/show-noticeboard.php?id=211[/URL]
[B]Model Question Paper[/B] : [URL]http://exams.puchd.ac.in/includes/noticeboard/20110620191803-06-MTI.pdf[/URL]

1. What is maximum data capacity for optical fiber cable ?
(A) 10 mbps (B) 100 mbps
(C) 1000 mbps (D) 10000 mbps

2. What is the central device in star topology in computer networking ?
(A) STP server (B) Hub/Switch
(C) PDC (D) Router

3. The number of digits in Hexadecimal system is :
(A) 15 (B) 17
(C) 16 (D) 8

4. For large networks ______ topology is used.
(A) Bus (B) Star
(C) Ring (D) Delta

5. ISO stands for :
(A) International Standard Organization (B) International Student Organization
(C) Integrated Services Organization (D) International Service Organization

6. Resistivity of silicon in ohms cm is approx. equal to :
(A) 50 K (B) 1012 ohm
(C) 230 K (D) 10-6 ohm

7. A Kb corresponds to :
(A) 1024 bits (B) 1000 bytes
(C) 1048 bytes (D) 948 bits

8. The forbidden energy gap for silicon is :
(A) 1.1 eV (B) 067 eV
(C) 0.97 eV (D) 1.7 eV

9. Impurity atoms that produces N type material by its addition in semiconductor is called :
(A) Donor (B) Acceptor
(C) Conductor (D) Insulator

10. IC 8085 is a :
(A) Microcontroller (B) Microprocessor
(C) Micromemory (D) Arithmetic Logic Unit

11. Point contact diodes are preferred at very high frequency, because of its low junction :
(A) Capacitance and inductance (B) Inductance
(C) Capacitance (D) Mobility

12. Another name for horizontal retrace in TV receiver is the :
(A) Ringing (B) Burst
(C) Damper (D) Fly back

13. Another name for the colour sync in the colour TV system :
(A) Ringing (B) Burst
(C) Damper (D) Fly back

14. In a transistor if Alpha = 0.98, current gain is equal to :
(A) 29 (B) 59
(C) 69 (D) 49

15. The active region in the common emitter configuration means :
(A) Both collector and emitter junction is reverse biased
(B) The collector junction is forward biased and emitter junction
(C) The collector junction is reverse biased and emitter junction is forward biased
(D) Both collector and emitter junction are forward biased[/QUOTE]

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