For the system of the given figure, the damping ratio of closed loop poles is 1.

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Home Aptitude

Correct Answer

0.5

Explanation

The standard form of characteristic equation is

Therefore For the system of the given figure, the damping ratio of closed loop poles is 1.5 1 0.5 0.25 The sta .

2. Assertion (A): When an SCR is conducting, the voltage drop across is about 1 V.
Reason (R): When an SCR is conducting, the junction temperature is about 200�C.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

4. Denominator polynomial of a transfer function of certain network is:
s³ + s² + 2s + 24
Then the network is:
Options
A. stable
B. oscillatory
C. unstable
D. depends on numerator polynomial

5. Match the following:

9. Assertion (A): The conductivity of p type semiconductor is higher than that of intrinsic semiconductor.
Reason (R): The addition of donor impurity creates additional energy levels below conduction band.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

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