## NIFTEM-INSTRUMENTATION & PROCESS CONTROL-ENG 321- Midterm + End Semester Question Paper Jun 2019- 6th Sem

*The information shared below is only to get a rough idea of NIFTEM’s end semester question paper pattern. However, questions proportion from the syllabus topics may vary every semester.*

# MIDTERM

#### Important points-

- Time- 1:30 hours
- Total Marks- 50
- Three parts A, B & C, in which Part A is compulsory of (15 marks) having Objective questions, MCQs, Fill in the blanks and matching type questions. Students have to answer the questions from Part-A on the paper itself. Time allotted for Part-A is 25 minutes
- Part B & part C consists of 25 marks and 10 marks respectively. Have to attempt -Part B- 5 questions of 5 marks each & Part C- 1 Questions of 10 marks. Time for Part-B and C is total of 01:05 hours.

**PART B **

**PART B**

### Answer any 5 questions from the following-

**1.** Explain the calibration chain in detail.

**2.** Explain the difference between open-loop & closed-loop systems.

**3.** Calculate Laplace transform’of x(t) = e^{(-at)}u(t) & plot the ROC.

**4.** Calculate the overall transfer function of the block diagram using a block diagram reduction technique.

**5.** Calculate and analyze the response of the system given below subjected to unit step input as:

**6.** Explain the classifications of measurement systems.

**7.** State and explain Process control systems

**8.** Discuss the limitations of Beer’s law.

**PART C**

### Answer any 1 question from the following-

**1.** Calculate the overall transfer function of the following block diagram using the block diagram reduction method.

**2. **Calculate the value of X(s) for x(t)=

**3. **

(a) Explain scaled ammeters and voltmeters in detail

(b) Describe how electrodynamics instruments can be used as Wattmeters?

# END SEM

#### Important points-

- Time- 3:00 hours
- Total Marks- 100
- Three parts A, B & C, in which Part A is compulsory of (30 marks) having Objective questions, MCQs, Fill in the blanks and matching type questions. Students have to answer the questions from Part-A on the paper itself. Time allotted for Part-A is 40 minutes
- Part B & part C consists of 40 marks and 30 marks respectively. Part B- 8 questions of 5 marks each & Part C- 3 Questions of 10 marks each. Time for Part-B and C is total of 2:20 hours.

**PART B **

### Answer any 8 questions from the following-

**1.** What are transducers? Explain the measurement of temperature.

**2.** What is humidity? Discuss two instruments for humidity measurement.

**3.** Discuss measurement principles for the measurement of gas concentration.

**4.** Explain the difference between open-loop & closed-loop systems.

**5.** Explain the calibration chain in detail.

**6.** Explain the classifications of measurement systems.

**7.** Calculate Laplace transform of x(t) = e^{(-at)}u(t) & plot ROC.

**8. **Discuss the difference between the moving coil and moving iron instruments. Explain the Permanent Magnet Moving coil instrument (PMMC).

**9.** Discuss the difference between absolute and relative stability. Explain (with neat diagram) the concept of stability of the system with respect to the location of poles of the system.

**10. ** State and explain Process control systems.

**PART C**

### Answer any 3 questions from the following-

**1. **Calculate the overall transfer function of the following block diagram using the block diagram reduction method.

**2.** Using Routh Hurwitz criteria, determine the stability of the system whose characteristic equation is given as:

s^{6}+s^{5}+5s^{4} +3s^{3}+ 2s^{2} -4s-8=0

**3. **Discuss Cathode Ray Oscilloscope (CRO) in detail.

**4. **The open-loop transfer function of a system is given by

**G(s)H(s)= (20) / ( s*(1+3s)*(1+4s))**

Calculate closed-loop stability using the Bode Plot.

**5**. Explain SCADA in detail.

*Best of Luck !!*

See other papers

NIFTEM-Basic Chemistry- End Semester Question Paper Dec 2019- 1st year

NIFTEM-Basic Electrical Engineering- End Semester Question Paper Dec 2019- 1st year

NIFTEM-Physics- End Semester Question Paper Dec 2019- 1st year

*Source- Question Papers collected and provided by Soumen Roy*