What is the range of the central heights used in the standard frames?
a) 50-1000 mm b) 90-1000 mm c) 100-1000 mm d) 56-1000 mm
a) 50-1000 mm b) 90-1000 mm c) 100-1000 mm d) 56-1000 mm
a) 0.7 * length b) 0.4 * length c) 0.3 * length d) 0.7 * length or 0.5 * length
a) alternative windings b) alternative core lengths c) alternative pole pitch d) alternative pole length
a) set of standard values b) mechanical structure required to house a rotor of given outside diameter c) mechanical structure required to house a stator of given outside diameter d) mechanical structure required to house a stator of given outside length
a) current rating b) voltage rating c) power rating d) output rating
a) diameter is directly proportional to the number of poles b) diameter is indirectly proportional to the number of poles c) diameter is directly proportional to the square of the number of poles d) diameter is indirectly proportional to the square of the number of poles