Related Questions

A laminated iron core has reduced eddy-current losses because
A More wire can be used with less D.C. resistance in coil
B The laminations are insulated from each other
C The magnetic flux is concentrated in the air gap of the core
D The laminations are stacked vertically
Laminated cores, in electrical machines, are used to reduce
A Copper loss
B Eddy current loss
C Hysteresis loss
D All of the above
A laminated glass upon cracking
A Bursts into sharp edged fragments
B Bursts into granular pieces
C Sandwiched layer traps the fragments
D Breaks into the form of crystals
The armature of D.C. generator is laminated to
A reduce the bulk
B provide the bulk
C insulate the core
D reduce eddy current loss
A transformer core is laminated to
A reduce hysteresis loss
B reduce eddy current losses
C reduce copper losses
D reduce all above losses
Dermatologists tell us (P) that the skin (Q) is finely laminated coating (R) whose layered nature (S) has inspired comparisons with onions
A PQRS
B PRQS
C PRSQ
D PSRQ
Why are digital circuits easier to design than analog circuits?
A they do not control electricity precisely over a wide range
B they are made in the form of ICs
C all elements of digital circuit are from the same family
D they are smaller in size
E None of the above
_______ is invariably used as base load plant.
A Diesel engine plant
B Nuclear power plant
C Gas turbine plant
D Pumped storage plant
Belted slip ring induction motor is almost invariably used for
A Water pumps
B Jaw crushers
C Centrifugal blowers
D None of the above
A nuclear power plant is invariably used as a
A peak load plant
B base load plant
C stand-by plant
D spinning reserve plant
E any of the above

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