Which material is used for the manufacture of brushes in DC motors? – McqOptions

MCQOPTIONS

1.	Which material is used for the manufacture of brushes in DC motors?
A.	Graphite
B.	Lead
C.	Copper
D.	All of these
Answer» B. Lead

Discussion

No Comment Found

Related MCQs

Which of the standards are applicable for designing induction motors?
Which part of the tower is buried in the ground?
Which place is the ‘Regional load dispatch centre’ for the western region in the national grid?
Which power factor condition is not suitable for the operation of synchronous generator?
Which properties should a material posse so as to be used for electrical equipments? i. High resistance ii. High luminosity iii. Fire retarding insulation iv. High permittivity
Which rubber has the properties of natural rubber?
Which sequence is followed first while closing a circuit breaker?
Which solutions are added into the lead acid battery?
Which substance is generally added to prevent contamination of electrolyte?
Which system present in the synchronous motor makes it costlier than Induction motor of the same size?