| Other Instrumentation Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| what is plc? | HPCL | 11 |
| wht is Zero Elevation and Zero Suppression? | | 2 |
| what does a positioner in control valve ? | | 6 |
| why 4-20 mA signal is preferred over a 0-10V signal | Sofcon | 7 |
| Is SmartPlant Instrumentation taking advantage of the
quality assurance procedures within Intergraph? | | 1 |
| Is there a particular problem if two proposals from the
same observatory (originating with different partners) are
submitted?
| | 1 |
| whats the diff b/w zero pressure and obsolute pressure | | 2 |
| How can you convert an SR Flip-flop to a JK Flip-flop?
| | 1 |
| The wire is disconnected from the fuel gauge sending unit
(bimetallic gauge). A voltmeter connected to the wire reads
a pulsating 5v. What does this indicate?
| | 2 |
| Sir i am preparing for PSU exam for ONGC but i am not able
to get the appropriate syllabus and previous year question
papers. Kindly send me the same, that will be a great help
from ur side. OR if anyone can plz send me the papers and
syllabus please. | | 2 |
|
Paper Details: company -- Hindustan Copper Limited
post -- GET 2008
Date -- 03.08.2008
Dept.-- Electronics?Instrumentation
Aptitude -- 70
Technical-- 80
Total Time -- 2hr 30min
I have listed the question I could able to remember
1. BCD equivalent of 43
2. value of K for stability of a system from a given equation
3. transformer connection for darlington connection
4. damping of balastic galvanometer
5. advantage of chart-pen recorder over CRo
6. CRO - how to change bandwidth
7. questions on CRO construction
8. reverse saturation current of si diode
9. advantage of wire wound resistance over carbon resistance
10. core material for a small coil
11. max fanout-- TTL/ECL/CMOS/MOS
12. component of resistance of monolithic IC
13. functions of capacitors in multivibrators
14. to change a sawtooth signal into a square wave we use--
schmit trigger/ schottkey diode/ zener diode
15. relation b/w á & â in transistor ckt
16. function of SiO2 layer in fabrication
17. 3 questions on ODD MAN OUT | HCL | 1 |
| what happens when the profibus fails while in operation
(operation of a valve)? | L&T | 2 |
| The wire is disconnected from the temperature sending unit
(magnetic gauge). A voltmeter connected to the wire reads
0v. What does this indicate? | | 2 |
| Convert a pressure, level, flow, or temperature process
variable value into the appropriate pneumatic or electrical
value given different types of instruments.
| Jindal | 1 |
| What is the meaning of the term "g force"? | | 1 |
| Can any body help me,The GE Mark V control system is
windows based or Dos based? | | 2 |
| any thing about plcs? | | 4 |
| what are the different types of Protocols? & their applications. | Syntel | 2 |
| what is loop? | | 2 |
| Technician A says that a fuel tank sending unit will have a
high resistance only when the tank is full. Technician B
says that its resistance when the tank is full depends on
whether the sending unit is designed for use with a
bimetallic gauge or with a magnetic gauge. Who is correct?
| | 1 |
| |
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