A. high speed steel
B. stainless steel
C. carbon steel
D. cast iron
A. open-circuit test only
B. short-circuit test only
C. stator resistance test
D. none of the above
A. in series
B. in parallel
C. in series-parallel
D. in parallel with stator
A. at the unit value of slip
B. at the zero value of slip
C. at the value of the slip which makes rotor reactance per phase equal to the resistance per phase
D. at the value of the slip which makes the rotor reactance half of the rotor
A. slip ring induction motor
B. squirrel cage induction motor
C. both A. and (b)
D. none of the above
A. 730 r.p.m.
B. 960 r.p.m.
C. 1440 r.p.m.
D. 2880 r.p.m.
A. silicon steel
B. cast iron
C. aluminium
D. bronze