Janardan Rai Nagar Rajasthan Vidyapeeth 2007 Diploma Mechanical Engineering INSTRUMENTATION
JRN Rajasthan Vidyapeeth University
DIPLOMA
SEMESTER - 6
INSTRUMENTATION & CONTROL
Model Question Paper
DTA7/DTM7- INSTRUMENTATION & CONTROL
Duration : 3 Hrs. Maximum Marks : 75
Instruction:
1. Question paper is divided into Group A, Group B and Group C
2. Each Group is of 25 Marks
3. Figure to the right in bracket indicate marks.
4. Good Handwriting is expected
Group A (25 Marks)
Answer any three questions (Question 1 is compulsory)
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Q.1: Describe generalized form of Instrumentation System.
(10)
Q.2: How pressure is converted in
electrical quantity? Explain Bimetallic Thermometer.
Q.3: Draw a circuit diagram of a typical configuration used in instrumentation amplifier. Show how the specifications for the instrumentation amplifier are achieved using a typical configuration.
Q.4 Explain the following terms:
(a) Digital computer (b)pneumatic controller
(10)
Q.5: Explain digital controller,
discuss working of digital controller of state merits of digital controller.
Group B (25 Marks)
Answer any three questions (Questions 6 is compulsory)
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Q.6: What are programmable controllers? How can they be applied to machines?
(10)
Q.7: What is the function of
tranducer? Explain the principal of working of LVDT .
(10)
Q.8: What is techogenerator? Give the
difference between A.C techometer and D.C tachometer. Find out transfer
function of techogenerator.
Q.9: Explain digital controller, discuss working of digital controller of state merits of digital controller. (10)
Q10 Explain the following terms:
(a) Digital computer (b)pneumatic controller
Group C (25 Marks)
All Questions are Compulsory.
Q.11. Fill in the blanks (Each question carries 2 Marks, Total = 10 Marks)
(i) Due to unshielded wires _________ capacitance is created.
(ii) _____________ are self generating devices, operating under energy conversion principle.
(iii) Thermistors are __________ resistance temperature transducers.
(iv) In a power supply__________is used to increase or decrease a c supply.
(v) IC 741 is ____________.
Q.12. Multiple choice questions (Each question carries 2 marks, Total = 10 marks)
(i) Micro process is________ device.
(a) Programme (b) Electrical
(c) Memory
(ii) _________ motor actuates a train of step angular or linear movement in response to a train of input pulses on one to one basis.
(a) Stepper (b) Servo
(c) Electric
(iii) Techometer is used to measure________.
(a) Speed (b) Temperature
(c) None of these
(iv) Oscilloscope is used to measure___________.
(a) Frequency (b) Temperature
(c) None of these
(v) Nixie tube is _________ display.
(a) Gaseous (b) Liquid
(c) Crystal
Q.13. Indicate whether following statements are True or False (Each question carries 1 marks, Total = 5 Marks)
(i) Bridge rectifier is used to convert ac to Dc.
(ii) In Op-AMP feedback reduces noise
(iii) Galvanometer is used to measure current.
(iv) Zcncor diode is a semiconductor stabilizing device.
(v) Integrator uses capacitor as a feed back path.
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| Earning: Approval pending. |
