APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY Previous Years Question Paper & Answer

Course : B.Tech

Semester : SEMESTER 6

Subject : Comprehensive Exam

Year : 2018

Term : APRIL

Scheme : 2015 Full Time

Course Code : EC 352

Page:2





PDF Text (Beta):

11001 Pages: 6
a) Conductivity b) Wavelength c) Permeability d) Permittivity

8. For a dominant mode in a rectangular waveguide with breadth 10 cm, guide wavelength for a
signal of 2.5 GHz will be

೩) 12cm b) 15 cm c) 18cm d) 20 cm
9. The logic expression Y = A+ AB is equivalent to

a) Y = AB b) AB c)AB d) A+B

10. Minterms corresponding to decimal number 15 is

a) ABCD ‏ہر‎ b)ABCD c)A+B+C+D d)A+B+C+D
11.൧ கோர look ahead adder is frequently used for addition because it is
E

a) Faster ¢ more accurate c)use fewer 8೩೭೦೪ ५) costs less

12. The output ಛಿ; of a JK flipflop is zero. If it changes to 1 when a clock pulse is applied.
Then the input Jn and Ky are respectively

a) 0 and X b) land > c)Xand0 d) X and 1
13. How many flipflops are required to build a binary counter circuit from 0 to 1023?
a) 5 b)6 c) 10 d) 12

14. For a circuit shown in figure below what is the frequency of the output 0

a) Twice the input clock frequency. b) Half the input clock frequency.
b) Same as the input clock frequency. 9) None of these.

15. In a sequential circuit the output at any instant of time depends on
a) Only on the inputs present at that instant of time

Page 2 of 6

Similar Question Papers