Maharashtra State Board of Technical Education 2011-5th Sem Diploma Automobile Engineering for in Subject :- -basic electrical and electronics(12169) - Question Paper
MSBTE ques. paper for Diploma in Automobile Engineering
Fifth Semester
Subject :- -basic electrical and electronics(12169)
3 Hours/100 Marks Seat No
12169
Instructions : (J) All questions are compulsory.
(2) Answer each next main Question on a new page.
(3) Illustrate your answers with neat sketches wherever necessary.
(4) Figures to the right indicate full marks.
(5) Assume suitable data, if necessary.
(6) Use of Non-programmable Electronic Piocket Calculator is permissible.
(7) Mobile Phone, Pager and any other Electronic Communication devices are not permissible in Examination Hall.
(8) Use of Steam tables, logarithmic, Molliers chart is permitted.
Masks
12169
2. Attempt any two : 16
a) State necessity of wiring harness. Draw neat wiring diagram of bead light.
b) Draw neat diagram of bridge rectifier. Describe its working with input-output wavefoims.
c) Describe measurement of temperature using thermister.
3. Attempt any two : 16
a) Draw neat diagram of multipolar d.c. motor. State its operating principle.
b) Describe magneto ignition and battery ignition.
c) Describe with neat diagram working of strain gauge.
4. Attempt any two : 16
a) Draw neat constructional diagram of core type of transformer. What is autotransformer ?
b) Compare insulated and ground return system. Which system is advisable ? why ?
c) Draw neat block diagram of electronic timer. Two applications of it.
5. Attempt any two : 16
a) Draw basic ammeter and voltmeter connection to measure current and voltage. Describe toung tester.
b) What is induction motor ? State function of stator and rotor. State its merits and demerits.
c) Draw neat circuit diagram of common emitter amplifier. Draw neat V-I characteristics of SCR. Draw its symbol.
6. Attempt any four : 16
a) State and explain Faradays law of electromagnetic induction.
b) Write expression for alternating current. State meaning of each term.
c) State operating principle of alternator.
d) Draw forward and reverse characteristic of P-N junction diode with neat circuit diagram.
e) Draw logic diagram of 4:1 multiplexer.
f) Draw neat diagram of 3-bit binary counter.
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| Earning: Approval pending. |
