This set of MCQ(multiple choice questions) focuses on the **Industrial Automation and Control NPTEL Week 0 Assignment Solutions**.

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*Assignment Solution* - Week 1:
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**Assignment Solution** - Week 7:
*Assignment Solution* - Week 8:
*Assignment Solution* - Week 9:
*Assignment Solution* - Week 10:
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*Assignment Solution* - Week 12:
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### **Industrial Automation and Control** NPTEL Week 0 Assignment 0 Solutions

**Q1.** Calculate the steady state current in 3ohm resistor shown in the figure below. The capacitance value is 0.2ÂµF and internal resistance of the battery is negligible.

a) 1.5 A

b) 0.9 A

c) 0.6 A

d) None

Answer: c) 0.6 A

**Q2.** Which of the following options is not correct according to Kirchhoff’s Current Law(KCL)?

a) Total current entering a junction is equal to total current leaving

b) Sum of total current at a node is zero

c) We can apply KCL at any point on a straight current carrying conductor.

d) KCL is applicable to closed loops in a network

Answer: d) KCL is applicable to closed loops in a network

**Q3.** Calculate the mutual inductance of two coils having values 50ÂµH and 100ÂµH connected in series and have a total inductance of 70ÂµF.

a) 40ÂµF

b) 50ÂµF

c) 80ÂµF

d) None

Answer: a) 40ÂµF

**Q4.** Thermocouples are

a) Active transducers

b) Passive transducers

c) Both active and passive transducers

d) Output transducers

Answer: a) Active transducers

**Q5.** The op-amp circuit given below is that of a

a) Low-pass filter with a maximum gain of 1

b) Low-pass filter with a maximum gain of 2

c) High-pass filter with a maximum gain of 1

d) High-pass filter with a maximum gain of 2

Answer: d) High-pass filter with a maximum gain of 2

**Q6.** The digital circuit shown in the figure works as:

a) JK flip-flop

b) Cocked RS flip-flop

c) T flip-flop

d) Ring Counter

Answer: c) T flip-flop

**Q7.** A MUX circuit shown in the figure below implements a logic function F_{1}. The correct expression for F_{1} is:

a) (xâŠ•y)’âŠ•z

b) ((xâŠ•y)’âŠ•z)’

c) (xâŠ•y)âŠ•z’

d) (xâŠ•y)âŠ•z

Answer: b) ((xâŠ•y)’âŠ•z)’

**Q8.** For the unity feedback control system shown in the figure, the open-loop transfer function G(s) is given as G(s) = 2/s(s+1). The steady state error e_{ss} due to unit step input i`s`

a) 0

b) 0.5

c) 1

d) âˆž

Answer: a) 0

**Q9.** Determine the range of K for stability of unity feedback system whose open loop transfer function is G(s) = K/s(s+1)(s+2)

a) K>0

b) 0 < K < 6

c) 0 > K > 6

d) K > 6

Answer: b) 0 < K < 6

**Q10.** The transfer function Y(s)/U(s) of a system described by the state equations x(t) = -2x(t) + 2u(t), y(t) = 0.5x(t)

a) 0.5/(s-2)

b) 1/(s-2)

c) 1/(s+2)

d) 0.5/(s+2)

Answer: c) 1/(s+2)

**Q11.** The root locus plot for a system is given below. The open loop transfer function corresponding to this plot is given by

a) G(s)H(s) = k.s(s+1)/(s+2)(s+3)â€‹

b) G(s)H(s) = k.(s+1)/s(s+2)(s+3)

c) G(s)H(s) = k.1/s(s-1)(s+2)(s+3)

d) G(s)H(s) = k.(s+1)/s(s+2)(s+3)^{2}

Answer: d) G(s)H(s) = k.(s+1)/s(s+2)(s+3)2

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