1) Match the following notations with their meanings:
A. G(s) ---------- 1) Laplace of error signal
B. H(s) ---------- 2) Laplace of output signal
C. C(s) ---------- 3) Forward transfer function
D. E(s) ---------- 4) Feedback transfer function
a. A- 2, B- 3, C- 1, D- 4
b. A- 3, B- 4, C- 2, D- 1
c. A- 2, B- 3, C- 4, D- 1
d. A- 1, B- 2, C- 3, D- 4
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Answer
Explanation
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ANSWER: A- 3, B- 4, C- 2, D- 1
Explanation:
No explanation is available for this question!
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2) The output signal is fed back at the input side from the _________point
a. Summing
b. Differential
c. Take-off
d. All of the above
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Answer
Explanation
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ANSWER: Take-off
Explanation:
No explanation is available for this question!
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3) Consider the assertions related to block diagram. Which among them represents the precise condition?
A. Block diagram is used for analysis & design of control system.
B. Block diagram also provides the information regarding the physical construction of the system.
a. A is true, B is false
b. A is false, B is true
c. Both A & B are true
d. Both A & B are false
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Answer
Explanation
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ANSWER: A is true, B is false
Explanation:
No explanation is available for this question!
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4) At summing point, more than one signal can be added or _________
a. Subtracted
b. Multiplied
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Subtracted
Explanation:
No explanation is available for this question!
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5) In block diagram representation, what do the lines connecting the blocks, known as?
a. Branches
b. Nodes
c. Datums
d. Sources
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Answer
Explanation
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ANSWER: Branches
Explanation:
No explanation is available for this question!
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6) For the elimination of feedback loops, the derivation based on transfer function of ______ loop is used.
a. Open
b. Closed
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Closed
Explanation:
No explanation is available for this question!
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7) Associative law for summing point is applicable only to those summing points which are __________connected to each other.
a. Directly
b. Indirectly
c. Orthogonally
d. Diagonally
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Answer
Explanation
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ANSWER: Directly
Explanation:
No explanation is available for this question!
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8) If finite number of blocks are connected in series or cascade configuration, then how are the blocks combined algebraically?
a. By addition
b. By multiplication
c. By differentiation
d. By integration
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Answer
Explanation
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ANSWER: By multiplication
Explanation:
No explanation is available for this question!
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9) While shifting a take-off point after the summing point, which among the following should be added?
a. Summing point in series with take-off point
b. Summing point in parallel with take-off point
c. Block of reciprocal transfer function
d. Block of inverse transfer function
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Answer
Explanation
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ANSWER: Summing point in series with take-off point
Explanation:
No explanation is available for this question!
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10) In a parallel combination, the direction of flow of signals through blocks in parallel must resemble to the main _______
a. Forward
b. Feedback
c. Opposite
d. Diagonal
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Answer
Explanation
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ANSWER: Forward
Explanation:
No explanation is available for this question!
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