Related Questions

Before talking such a test, one had better brush up on his/her vocabulary.Choose the closest meaning of the underline phrase-
A outline
B translate
C revise
D review
Painter : Brush :: ?: ?
A Magistrate : Police
B Crime : Lawyer
C Carpenter : Saw
D Cloth : Scissors
BRUSH:LEASH
A Belt: Buckle
B Cow:Tether
C Bird:Cage
D Bicycle:Chain
The hair of shaving brush clings together when removed from water due to
A Surface tension
B Viscosity
C Elasticity
D Friction
Due to which of the following factors the brush wear rate is altered?
A Speed of the machine
B Contact pressure
C Surface conditions of brush and commutator
D All of the above
is usually used for brush rockers
A Mild steel
B Copper
C Aluminium
D Cast-iron
In D.C. generators, the cause of rapid brush wear may be
A Severe sparking
B Rough commutator surface
C Imperfect contact
D Any of the above
In a universal motor, the most common cause of brush sparking is
A open armature winding
B shorted armature winding
C shorted field winding?
D high commutator mica
E all of the above
In a D.C. machine the number of brush arms is _____ the number of poles.
A less than
B equal to
C greater than
D none of the above
In a D.C. machine the current per brush arm should not be more than
A 100 A
B 200 A
C 300 A
D 400 A

Next steps