Explanation: The amount of conductor and iron materials required for a machine of given rating is inversely proportional to its speed. Also, more iron and conductor would entail more losses. 13. No load rotational losses in electrical machine consists of _____________
A. Friction and windage losses
B. Stator core, friction and windage losses
C. Rotor core, friction and windage losses
D. No load core, friction and windage losses
Answer:A
Explanation: The amount of conductor and iron materials required for a machine of given rating is inversely proportional to its speed. Also, more iron and conductor would entail more losses. 13. No load rotational losses in electrical machine consists of _____________
A. Friction and windage losses B. Stator core, friction and windage losses C. Rotor core, friction and windage losses D. No load core, friction and windage losses
Explanation: The sum of friction and windage loss under no load is called no load rotational losses. Sanfoundry Global Education & Learning Series – Electrical Machines.