Why are the D.C. motors preferred for traction applications ?
A) Torque and speed are inversely proportional to armature current
B) Torque is proportional to armature current
C) Torque is proportional to square root of armature current
D) The speed is inversely proportional to the torque and the torque is proportional to square of armature current
Correct Answer:
Verified
Q1: The plugging gives the
A)zero torque braking
B)smallest torque
Q2: The armature voltage control of D.C. motor
Q3: If the terminals of armature of D.C.
Q4: Which of the following motors one will
Q5: If the speed of a D.C. shunt
Q7: Which of the following motors is usually
Q8: Which of the following motors is most
Q9: Which motor should not be started on
Q10: Ward-Leonard control is basically a
A)voltage control method
B)field
Q11: For constant torque drive which speed control
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents