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Quiz: Transfer Function-LCS

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Number of Questions: 18

Question: 6 -

The block diagrams shown in fig. are equivalent if G is equal to

Options:

  1. 2

  2. 1

  3. s+1

  4. s+2

    5. Answer:

    1
    Solution not available.

Question: 7 -

A system is shown in fig. The transfer function for this system is

Options:

  1. G1G2/1+G1G2H1

  2. G1G2/G1H1+G2H2+G1G2H1H2

  3. G1G2/1+G1H1+G2H2+G1G2H1H2

  4. G1G2/1+G2H2+G1G2H1H2

    5. Answer:

    G1G2/1+G1H1+G2H2+G1G2H1H2
    Solution not available.

Question: 8 -

In the signal flow graph shown in fig. the sum of loop gain of non-touching loops is

Options:

  1. t32t23+t34t43

  2. t34t32t23+t44

  3. t32t23+t44

  4. t32+t44

    5. Answer:

    t32t23+t44
    Solution not available.

Question: 9 -

A feedback control system shown in fig. is subjected to noise N(s).

The noise transfer function CN(s)/N(s)

Options:

  1. G1G2/1+G1G2H

  2. G2/1+G1G2H

  3. G2/1+G2H

  4. G2/1+G1H

    5. Answer:

    G2/1+G1G2H
    Solution not available.

Question: 10 -

Consider the systems shown in fig. If the forward path gain is reduced by 10% in each system, then the variation in C1 and C2 will be respectively

Options:

  1. 10% and 0%

  2. 10% and 1%

  3. 2% and 10%

  4. 5% and 1%

    5. Answer:

    10% and 1%
    Solution not available.