Category: Electrical Machine Design

A. air
B. hydrogen
C. either A. or B.
D. none of the above

A. Conduction
B. Convection
C. Radiation
D. All of the above

A. low
B. medium
C. high
D. any of the above

A. Force equation
B. Magnetic circuit equation
C. Heating equation
D. Voltage equation
E. All of the above

A. One sided axial ventilation
B. Two sided axial ventilation
C. Multiple inlet system
D. All of the above

A. Metal graphite brushes
B. Hard carbon brushes
C. Electro-graphitic brushes
D. Natural graphite brushes

A. Equivalent current method
B. Equivalent power method
C. Equivalent torque method
D. Method of average losses

A. Cylindrical winding with circular conductors
B. Cross-over winding with either circular or small rectangular conductors
C. Continuous disc type winding with rectangular conductors
D. All of the above types

A. Closed windings
B. Open windings
C. Either of the above
D. None of the above

A. The flux is constant with respect to time and is stationary and the coil moves through it
B. The coil is stationary with respect to flux and the flux varies in magnitude with respect to time
C. Both the changes mentioned above occur together, i.e., the coil moves through a time varying field
D. All of the above