EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is
11.5 A.
13.5 A.
27 A.
23 A.
11.5 A.
13.5 A.
27 A.
23 A.
Answer
Download EE MCQ app
Related Question
Electrical Machines
For pure resistive load what is the armature reaction?
All of these
cross magnetization
magnetization
demagnetization
All of these
cross magnetization
magnetization
demagnetization
Answer
Download EE MCQ app
Electrical Machines
In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be
unequal to number of rotor slots and skewed in shape.
an integral multiple of number of rotor slots.
either (B) or (C).
equal to number of rotor slots.
unequal to number of rotor slots and skewed in shape.
an integral multiple of number of rotor slots.
either (B) or (C).
equal to number of rotor slots.
Answer
Download EE MCQ app
Electrical Machines
In DC machines, the interpoles are provided
to counteract demagnetizing effect of armature mmf in commutating zone.
to counteract the reactance voltage and the cross-magnetizi
to make commutation spark less.
both (B) and (C).
to counteract demagnetizing effect of armature mmf in commutating zone.
to counteract the reactance voltage and the cross-magnetizi
to make commutation spark less.
both (B) and (C).
Answer
Download EE MCQ app
Electrical Machines
Armature reaction in DC generators will result in
short circuit.
increase in slip.
open circuit.
reduction in generated emf.
short circuit.
increase in slip.
open circuit.
reduction in generated emf.
Answer
Download EE MCQ app
Electrical Machines
A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm?
30 Hz.
20 Hz.
35 Hz.
Can be determined.
30 Hz.
20 Hz.
35 Hz.
Can be determined.
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram