a) Reduced windage loss b) Reduced noise c) Reduced bearing loads and noise d) Adaptability to low and medium speed operations Ans: (d)
a) Frequency b) Flux per pole c) Coil span factor d) All of these Ans: (d)
a) 4 b) 3 c) 6 d) 12 Ans: (c)
a) Larger in diameter and smaller in axial length b) Larger in diameter and larger in axial length c) Smaller in diameter and larger in axial length d) Smaller in diameter and smaller in axial length Ans: (a)
a) Shunt motor b) Series motor c) Shunt generator d) Compound motor Ans: (c)
a) Number of poles b) Speed of alternator c) Both (a) and (b) d) Type of winding Ans: (c)
a) Number of poles b) Number of armature conductors c) Number of pair of poles d) None of these Ans: (c)
a) High speed b) Low speed c) Medium speed d) Both low and high speed Ans: (a)
a) Unity power factor b) Leading power factor c) Lagging power factor d) Either lagging or leading power factor Ans: (b)
a) Low speed b) Medium speed c) High speed d) Any speed Ans: (a)