Electrical Machine Design

____________ is the common method of applying brushes to the commntator?

Byadmin December 22, 2018August 11, 2021

____________ is the common method of applying brushes to the commntator?

A. Radial
B. Trailing
C. Reaction
D. All of the above

Electrical Machine Design

Electrical machines having a power output up to about 750 W may be called__________machines?

Electrical machines having a power output up to about 750 W may be called__________machines?

A. small size
B. medium size
C. large size
D. any of the above

Read More Electrical machines having a power output up to about 750 W may be called__________machines?
Electrical Machine Design

___________ brushes are fragile and cause excessive wear of commutator?

___________ brushes are fragile and cause excessive wear of commutator?

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

Read More ___________ brushes are fragile and cause excessive wear of commutator?
Electrical Machine Design

_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?

_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?

A. Silver
B. Steel
C. Aluminium
D. Copper

Read More _______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?
Electrical Machine Design

In direct cooled system using hydrogen both stator and rotor conductors are made____________?

In direct cooled system using hydrogen both stator and rotor conductors are made____________?

A. solid
B. hollow
C. perforated
D. any ofthe above

Read More In direct cooled system using hydrogen both stator and rotor conductors are made____________?
Electrical Machine Design

In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?

In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?

A. low power factor
B. high power factor
C. high over load capacity
D. any of the above

Read More In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?
Electrical Machine Design

Machines cooled by direct cooling method may be called_____________?

Machines cooled by direct cooling method may be called_____________?

A. “supercharged”
B. “inner cooled”
C. “conductor cooled”
D. any of the above

Read More Machines cooled by direct cooling method may be called_____________?

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