EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
Which of the following generators are used in arc welding?
shunt generators
series generators
cumulative compound generators
differential compound generators
shunt generators
series generators
cumulative compound generators
differential compound generators
Answer
Download EE MCQ app
Related Question
Electrical Machines
A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is
1/3
3
√3
1/√3
1/3
3
√3
1/√3
Answer
Download EE MCQ app
Electrical Machines
Flashing of DC generator means
None of these
increasing flux density by providing extra ampere-turns in field.
creation of residual magnetism by a DC source.
neutralization of residual magnetism.
None of these
increasing flux density by providing extra ampere-turns in field.
creation of residual magnetism by a DC source.
neutralization of residual magnetism.
Answer
Download EE MCQ app
Electrical Machines
The stator core of a 3 - ÃŽÂ¦ induction motor is laminated in order to reduce the
weight of the stator.
eddy current loss.
both of the above.
hysteresis loss.
weight of the stator.
eddy current loss.
both of the above.
hysteresis loss.
Answer
Download EE MCQ app
Electrical Machines
The main purpose of providing tertiary winding in a three phase transformer is
None of these
to carry extra load.
to suppress harmonic and unbalance in voltage.
to interconnect three voltage systems.
None of these
to carry extra load.
to suppress harmonic and unbalance in voltage.
to interconnect three voltage systems.
Answer
Download EE MCQ app
Electrical Machines
An 8 pole DC generator has 500 armature conductors and useful flux per pole of 0.065 Wb. What will be the emf generated if it is lap connected and runs at 1000 rpm. What must be the speed at which it is driven to produce the same emf if it is wave wound?
541.67V, 250 rpm.
2166.67V, 270 rpm.
541.67V, 200 rpm.
2166.67V, 230 rpm.
541.67V, 250 rpm.
2166.67V, 270 rpm.
541.67V, 200 rpm.
2166.67V, 230 rpm.
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram