Exercise: Exam Question Papers

Questions for: Exam Question Papers

The given characteristic polynomial s4 + s3 + 2s2 + 2s + 3 = 0 has
A:
zero root in RHS of s-plane
B:
one root in RHS of s-plane
C:
two roots in RHS of s-plane
D:
three roots in RHS of s-plane
Answer: C

By Routh's Array

When ε -> 0, two sign changes in the first column, so there are two roots in RHS plane.

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ωH =
A:
108 rad/sec
B:
104 rad/sec
C:
102 rad/sec
D:
10 rad/sec
Answer: A

R = 10 || 10 = 5 KΩ

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The equivalent circuit for the following network is :
A:
B:
C:
D:
Answer: A

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If (225)Y = (165)8 find value of Y
A:
7
B:
8
C:
9
D:
11
Answer: A

(225)y => 2Y2 + 2Y + 5 = (165)8 => (117)10

∴ 2Y2 + 2Y + 5 = 117

Y2 + Y - 56 = 0

∴ Y = 7 or Y = - 8

∴ Y should be 7.

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In 8085, Whenever a signal is received at TRAP terminal its program execution is transferred to a subroutine on address __________ .
A:
0000 H
B:
0024 H
C:
002 CH
D:
provided by the address generation logic
Answer: B

TRAP is considered to be of the highest priority and the address of the subroutine is given by 0024 H.

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