7/21/2019 EMD 2MARK QPAPER

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MANAKULA VINAYAGAR INSTITUTE OFTECHNOLOGY

KALITHEERTHALKUPPAM, PUDUCHERRY- 605107

DEPARTMENT OF ELECTRICAL AND ELECTRONICSENGINEERING

TWO MARKS TEST

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1. What is electrical machine desin!". What are the c#nsiderati#ns t# $e made %hile

desinin a electrical machines!&. What are the Standard s'eci(cati#ns iss)ed *#r

electrical machine! +#r, Write a sh#rt n#te #nstandard s'eci(cati#ns!

-. De(ne s'eci(c manetic l#adin.. De(ne s'eci(c electric l#adin./. List the *act#rs that in0)ence the se'arati#n #* D and L

#* a dc machine. 2#% the mm* #* a manetic circ)it is determined!3. De(ne (eld *#rm *act#r.4. What is real 0)5 densit6 and a''arent 0)5 densit6!17.What is meant $6 a' c#ntracti#n *act#r!11.List s#me limitati#n #* the desin.

1".What are the ma8#r c#nsiderati#ns t# e9#l9e a ##ddesin #* electrical machine!

1&.What is acti9e 'art!1-.What is s:)are '#le criteri#n!1.What is 'eri'heral s'eed!1/.What is #)t')t e:)ati#n!1.Write the e5'ressi#n *#r the '#%er de9el#'ed an the

armat)re #* dc machine in terms #* the ma5im)m a'densit6.

13.What are the *act#rs t# $e c#nsidered *#r the ch#ice#* s'eci(c manetic l#adin #* dc machine!

14.List the disad9antaes #* lare n)m$er #* '#les"7.Wh6 s:)are '#le is 're*erred!

"1.What is meant $6 %indin 'itch!"".Menti#n )idin *act#rs *#r the selecti#n #* n)m$er #*

'#les"&.What are the *act#rs t# $e c#nsidered *#r decidin the

sl#t dimensi#ns!"-.What *act#r decides the minim)m n)m$er #*

armat)re c#ils!".What is meant $6 e:)ali;er c#nnecti#ns!"/.Menti#n the *act#rs t# $e c#nsidered *#r the desin #*

sh)nt (eld c#il!".De(ne c#''er s'ace *act#r #* the c#il."3.What are the e