Electrical Machines
In a transformer

 OC test is conducted on LV side and SC test is conducted on HV side
 both OC and SC tests are conducted on LV side
 both Oc and SC tests are conducted on HV side
 OC test is conducted on HV side and SC test is conducted on LV side

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Electrical Machines
Consider the following statements regarding the speed control of dc motors : 1. ward-leonard method is suitable forconstant-torque drives 2. Ward-leonard method is suitable for constant-power drives 3. field-control method facilitates speed control below base speed 4. Armature-resistance control method is more efficient than ward-leanard method 5. Field-control method is suitable for constant-torque drives 6. Armature-resistance control method is suitable for constant-torque drives From these, the correct answer is

 1, 2, 6
 1, 2, 5
 1, 3, 5
 1, 4, 6

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