Related Questions

In a A.C. series motor armature coils are usually connected to commutator
A through resistance
B through reactances
C through capacitors
D solidly
If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
A black
B red
C white
D orange
In D.C. generators, the brushes on commutator remain in contact with conductors which
A Lie under South Pole
B Lie under North Pole
C Lie under interpolar region
D Are farthest from the poles
In case of D.C. machine winding, number of commutator segments is equal to
A Number of armature coils
B Number of armature coil sides
C Number of armature conductors
D Number of armature turns
The insulating material used between the commutator segments is normally
A Graphite
B Paper
C Mica
D Insulating varnish
In AC.S.R. Conductors, the insulation between aluminium and steel conductors is
A Insulin
B Bitumen
C Varnish
D No insulation is required
What device separates a single network into two segments but lets the two segments appear as one to higher protocols?
A Switch
B Bridge
C Gateway
D Router
For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f.?
A Lap winding
B Wave winding
C Either of (A) and (B) above
D Depends on other features of design
If A + B means A is the sister of B; A x B means A is the wife of B, A % B means A is the father of B and A - B means A is the brother of B. Which of the following means T is the daughter of P?
A P x Q % R + S - T
B P x Q % R - T + S
C P x Q % R + T - S
D P x Q % R + S + T
If X + Y means X is the daughter of Y; X - Y means X is the brother of Y; X % Y means X is the father of Y and X x Y means X is the sister of Y. Which of the following means I is the niece of J?
A J - N % C x I
B I x C - N % J
C J + M x C % I
D I x C + N - J

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