Sample Paper for Diploma in Electronics & Communication Engineering for 2nd year in Electrical Machines

Diploma in Electronics & Communication Engineering

Diploma in Electronics & Communication Engineering 3 year race is Conducted by: various universities. Diploma in Electronics & Communication Engineering course is therefore the after the completion of the basic schooling. FOLLOWING Old Question paper for Diploma in Electronics & Communication Engineering 2nd year is example of model year issue paper. This issue paper model of Diploma in Electronics & Communication Engineering is of 60 marks. There are 9 questions Asking Being goal you Have to Attempt Any five of 'em and EACH of the questions in this Diploma in Electronics & Communication Engineering 12 marks Question paper caries. The maximum time to finish this Allowed Diploma in Electronics & Communication Engineering Model Question paper is 3 hours.



DIPLOMA IN ELECTRICAL / ELECTRONICS & COMMUNICATION ENGINEERING
SEMESTER: III, YEAR-2

ELECTRICAL MACHINERY

Duration -3 Hours Max Marks: 60

Note: 1. Any Attempt FIVE questions.

           2. All Questions carry EQUAL marks.


1. State and explain Fleming's right hand rule and Fleming's Left hand rule. Explain with neat diagram how torque is due to Developed alignment of Two fields.


2. The induced EMF in a DC Machine When running at 500 rpm is 200 V. Calculate the induced emf while the engine is running at 600 rpm by Assuming constant flow To Be.


3. Write short notes on:Cooling of transformingOn-load tap changingOil conservator


4. A three phase, 50 Hz transform HAS delta connected primary and secondary star connected, the line voltage Being 22.000 V, 400 V respectively. The secondary HAS star connected load balance any power factor lagging. The line on the primary side current is 5 A. Determine current in primary and secondary coil EACH line. What is the output of transform in KW?


5. What do you mean D.C. Maintenance of machines? Why Maintenance is needed?


6. Prepare a maintenance schedule of 1000 KVA Transformer.


7. What are the different methods of speed control of DC shunt motor? What Is The Most Commonly Used method? Explain in detail.


8. Efficiency of transformation and define the terms at PROVE Which Operates a turn at maximum efficiency icts.


9. The single-phase transform HAS 200 primary and 800 secondary turns. The next cross-sectional area of ​​the core is 100 cm2. If the primary winding connected to Be a 50 Hz supply of 250 V, Calculate:Value of flux density in the coreThe voltage induced in the secondary windingWhat is the value of conversion ratio?




Note: Above Sample Paper for Diploma in Electronics & Communication for 2nd year has-been Prepared by reviewing sample papers FEW universities. We are not sure whether your university or similar issue HAS Sami pattern. We always Suggest you to go inside thoroughly with text books, notes & professor's syllabus. Wish you a very good luck for your upcoming examination for Diploma in Electronics & Communication Engineering for 2nd year.