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1. Can a 1500 RPM motor be run at 3000 RPM by frequency inverter application?
2. Why one has to buy higher frame size motor if it is to be used with frequency inverter applications?
3. What is the significance of using only a particular speed motor with a particular application? What are   the consequences if 3000 RPM motor is used in place of 1500 RPM motor or vice versa ?
4. What is the full load current of the motor?
5. What is the starting current of the motor?  
6. What is the size of starter and overload relay range required for a particular motor?
7. What is the full load torque of the motor?
8. What is the starting torque of the motor?
9. What is the method of starting for a particular motor.- DOL, Star-Delta, Rotor Resistance
10. How many times a motor can be started in an hour without any harmful effect on the winding?
11. What is the safe limit of the body temperature of the motor?
12. What is the significance of Ambient Temperature on performance of the motor?
13. What is the difference between Class ‘B’ and Class ‘F’ insulations ? Which is better ?
14. Can the motor winding withstand heavy fluctuations in the supply voltage ? What is the effect of surges on the winding ?
15. At what minimum supply voltage the motor can be safely started without harmful effect on the winding?
16. What is the minimum time required by the motor to attain full speed at the rated load?
17. What are the percentage efficiencies of the motor at full, half and quarter loads?
18. What is the motor power factor at full, half and quarter load?
19. What is the value of per phase winding resistance of the motor?
20. What is the rated speed of the motor?
21. The type of lubricant and quantity for first filling.
22. Frequency of regreasing and quantity of grease required?
23. Type and Size of bearing
24. What are the hot and cold thermal withstand times ?
25. What is value of GD² of the motor ?
26. In what way low supply voltage affects performance of the motor? What are the consequences ?
27. At what percentage of the rated voltage the motor can be run safely on rated load?
28. What are the values in percentage of pull out and pull up Torques in respect of rated or full load Torque?
29. Is a standard 415V motor suitable for 380V operations ?
30. Can the 50Hz frame motor be run at 60Hz frequency without any alteration ?
31. Does the motor have double shaft Extention ?
32. Can the motors upto 90 frame and for 6 & 8 poles in 100 frame be supplied with 6 studs terminal board 
33. Are there differences between old and new frame sizes and also between KEC make and other makes ?
34. Can the motor be supplied with thermistors and space heaters? What are the functions of thermistors and space heaters?
35. Can a stainless steel nameplate be provided for the motor?
36. Can Lubrication details nameplate be provided for the motor?
37. What does the frame size of the motor indicate ? What do the prefix letters KH,PM,BPM LD/SC etc indicate ?

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