1 Answer

Brushes of D.C. machines are made of carbon.

Like 0 like Dislike 1 dislike

Related

Description : Brushes of DC machine are made up of ?

Answer : Brushes of DC machine are made up of carbon.

Answer : Satisfactory commutation of D.C. machines requires brushes should be of proper grade and size, brushes should smoothly run in the holders, smooth, concentric commutator properly undercut.

Answer : The purpose of retardation test on D.C. shunt machines is to find out stray losses.

Description : In a DC motor, it is important to place the brushes along ______ A) Magnetic Neutral Axis B) Normal Geometric Axis C) Nominal Geometric Axis D) None of these

Answer : In a DC motor, it is important to place the brushes along Magnetic Neutral Axis

Answer : Copper brushes in D.C. machine are used where low voltage and high currents are involved.

Discuss Now ← Prev Page Next Page →