Motors for Particular Services Interview Questions;
Following are the below Motors for Particular Services Interview Questions and Important Questions which is very useful for interviews and exams
1. Give comparative costs and applications of various types of electric motors.
2. State with reasons, the type of ac motor suitable for following loads: (i) Table fan (ii) Domestic mixie.
3. Explain the selection of electric motors for machine tool application regarding (i) electrical features (ii) mechanical features, (iii) how are frequent starting and reversing requirements are handled ? (iv) Methods of braking used for machine tool motors.
4. What are the desirable characteristics of the drives for use in cranes and hoists ? Make a comparative study of dc and ac motors for crane applications in the light of the above points.
5. Explain the factors that must be taken into account while selecting a motor for a particular work. On the basis of these factors suggest and justify motors for the following : (a) Paper mill drive (b) Cranes (c) Marine drive (d) Textile mill drive.
6. State, giving reasons, what type of motor you would suggest for the following drives : (i) Rolling mills (ii) Centrifugal pumps (iii) Textile machinery (iv) Passenger lifts.
7. State, giving reasons, what type of motor you would consider suitable for the following drives : (a) Air compressor (b) Reciprocating pump (c) Paper mill drive and (d) Elec. traction.
8. Give an account of the special conditions imposed upon the electrical equipment of rolling mills in a steel works. Describe fully how these conditions are fulfilled in the case selected. Assume an ac supply, the driving motors being either direct or alternating.
9. What type of drives do you suggest for paper mill and steel rolling mill ? Explain in brief.
10. Suggest suitable type of motors with reasons for spinning mills and cement mills.
11. Suggest suitable type of motors with reasons for textile mill and paper mill drives.
12. Write typical motors and controllers for (i) Pump drives, (ii) Celing fan, (iii) Kiln drive of cement mills, (iv) Rolling mill drives and (v) Electric traction.