Blondel's Two Reaction Theory - Salient Pole Machine Theory - MCQs with answers
Blondel's Two Reaction Theory - Salient Pole Machine Theory - MCQs with answers
Q1. Blondel’s two reaction theory which gives the method of analysis of disturbing effects caused bya. Salient pole construction
b. Non salient pole construction
c. Both (a) and (b)
d. None of these
View Answer / Hide AnswerANSWER: a. Salient pole construction
Q2. According to Blondel’s two reaction theory the armature mmf is divided into components, direct axis component and quadrature axis component. The component acting along quadrature axis isa. Magnetizing
b. Demagnetizing
c. Cross magnetizing
d. None of these
View Answer / Hide AnswerANSWER: c. Cross magnetizing
Q3. According to Blondel’s two reaction theory, the armature mmf component acting along direct axis can bea. Demagnetizing
b. Magnetizing
c. Cross magnetizing
d. Either (a) or (b)
View Answer / Hide AnswerANSWER: d. Either (a) or (b)
Q4. The reluctance offered to the mmf wave is lowest whena. It is aligned with the field pole axis
b. It is oriented at 90 degree to the field pole axis
c. Both (a) and (b)
d. None of the above
View Answer / Hide AnswerANSWER: a. It is aligned with the field pole axis
Q5. In Blondel’s two reaction theory, if Ia is armature current per phase, Ra is armature resistance, Xd is direct axis synchronous reactance, Xq is quadrature axis synchronous reactance and V is the terminal voltage, then the voltage in phase with direct axis will bea. V + I
aR
a + I
a X
db. V + I
aR
a + I
aX
qc. V + I
aX
d + I
aX
qd. V + I
aR
a + I
aX
d + I
aX
qView Answer / Hide AnswerANSWER: a. V + IaRa + Ia Xd