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Placement Materials & Answers-Free Download


Software Companies Placement Papers- Cummins-Free Download

1. What is dimension of Watt?------------- nm/sec

2. What is Calorie?=====quantity of heat

3. IGBT stands for?

4. A Question about Propagation constant

5. Which is not a piezoelectric material?===Graphite

6. How does a moving electron behaves in a magnetic field?=== move along the plane

7. A question on thermistor

8. Which convertor can be used in both 6 and 12 pulse mode?===3 phase 12 pulse

9. SCADA stands for?

10. Not a power amplifier?======Bc amplifier

11. Voltage changed from 220 to 440 on primary winding of a transformer. What would be the effect on frequency?=====No change(50 Hz)

12. Current is have then Power loss reduces from 1600 to?=====400

13. For communication of 30 devices-?rs232,rs422?

14. To Increase 8085 memory?======use memory mapping

15. Z transform—property?------------------scalene

16. Syncros?==== to measure angle and give current

17. About Pascal’s tube

18. To identify signal in the fig?====Unit sample response

19. Direction of Current is given.Then Direction of electric field?==== opposite

20. Determining factor in Squirrel cage Induction motor?=====v/f

21. Scr diode is also known as?=====pnpn

22. To measure rotor angle?=====mechanical degrees

23. Ratio of steam utilized to heat unutilized?======boiler efficiency

24. How many nibbles are there in 111001010100?

25. Vararester is used to control?=======overcurrent,noise

Technical Questions

Q1)the unit of 1 watt is (a) 1 Nm/s (b) 1 Nm/hr Every ques was given with 4 options.

Q2)the direction of electric field is (a)same as direction of current (b)opposite to that of current © don’t remember the other options

Q3)The motion of electron in magnetic field is (a)moves in straight line (b)in sine wave ©perpendicular to the plane of propagation

Q4) What is SCADA? (a)Supervisory Control And Data Aquistion

Q4) SCR diode is (a) PNPN diode (b) PNPP diode (c) None of these

Q5)memory of 8085 microprocessor can be extended to 64k by (a)using memory mapped …… (b) cannot be increased ©none of these

Q6)serial connector used for connecting 30 devices is (a)RS 232 (b)RS 422 (c)RS …..don’t remember (d) None of these Q7)question related to squirrel cage (a) V/f (b) I/f (c) Armature resistance

Q8)rotation in machines is related to (a)mechanical degrees (b)electrical degrees (c)both

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