CONTROL SYSTEMS QUIZ

The transfer function for tachometer E(S)/θ(S) is

KS

KS2

K/S

K

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Number of sign changes in the entries in 1st column of Routh array denotes the no. of

roots of characteristic polynomial in RHP.

zeroes of system in RHP.

open loop poles in RHP.

open loop zeroes in RHP.

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The magnitude condition for root locus is ..................

|G(s)H(s)| = 1

|G(s)H(s)| = ∞

|G(s)H(s)| = 0

|G(s)H(s)| = 2

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The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

0

3

2

1

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For a unity feedback control system open loop transfer function then acceleration error constant is

50.

0.

20.

infinity.

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Which of the following is/are represents the lag compensator?

(s+2)/(s+5)

(s+2)/(s+1)

(s+5)/(s+6)

both 1 and 2

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If two blocks having gains A and B respectively are in parallel connection, find the resultant gain using block diagram reduction technique?

A/B

A*B

A+B

2(A+B)

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The following transfer function represents a phase-lead compensator?

(s+4)/(3s+6)

1/s

(4s+2)/(6s+1)

(s+4)/(s+6)

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The system having characteristic equation is used to be an oscillator. What is the value of k?

2

1

3

4

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What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?

0

3

2

1

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