ASSIGNMENT

Chapter: 1

Q.1 Define the following terms

1. Luminous flux 2. Light 3. Luminous intensity 4. Candle power 5. Lux or power 6. Foot candle 7. MHCP 8. MSCP

9. MHSCP 10. Reduction factor 11. Solid angle 12. Absorption factor 13. Illumination 14. Lumen 15. Nit 16. Stilb

17. Glare 18. Plane angle 19. Reflection factor

2. Explain the Laws of ILLUMINATION.

3. Write the shots note on different luminaries

1. INCANDESCENT LAMP 2. Carbon filament lamp 3. Metal filament lamp 4. Helogen lamp

5. Fluorescent tube light 6. High pressure mercury vapour lamp 7. C.F.L. Lamp 8. Electronics ballast

Chapter: 2

1. Write advantages of electrical heating.

2. Classification of electrical heating.

3. Explain direct and indirect resistance furnace.

4. Explain direct and indirect arc furnace.

5. Explain horizontal type induction furnace.

6. Explain AJEX WYATT furnace.

7. Explain high frequency induction heating.

8. Write the factor affecting on induction heating.

9. Explain die-electric heating.

10. Advantages and disadvantage of die-electric heating.

11. Explain advantages of electrical welding

12. Draw and explain spot welding

13. Write comparison between ac and dc

14. Write comparison between arc welding and resistance welding

Chapter: 3

1. What is electrical drive? Draw block diagram of electrical drive?

2. Write the advantage & disadvantage of electrical drive?

3. List the advantages and disadvantages for A.C. drive and D.C. Drive

4. Why D.C. series motor used in traction system?

5. Draw Torque speed characteristics of D.C. shunt, D.C series. D.C compound motor,3-

phase IM.3-phase SM,

6. Explain the Group drive and Individual drive with advantages and disadvantages

7. State the types of elevator. Explain the hole type hydraulic Elevator.

8. Explain the construction of the gear type traction elevator.

9. Write the Gujarat lifts and escalators ACTs,2000 as on 30th November ,2001.

10. Explain the control of Elevator.

11. Write the Comparison between Hydraulic and Traction Elevator.

12. Explain the Safety and Reliability in Elevators.

13. Comparison between of ac drive and dc drive.

Chapter: 4

1. Write requirements of ideal traction system.

2. Write types of traction system.

3. Write an advantages and disadvantage of electric drive.

4. Explain types of electric system write a classification of track electrification

5. Draw and explain dc electric traction system.

6. Explain single phase traction system.

7. Write a short note on composite system.

8. Write a short note kando system.

9. Explain components of speed time curve.

10. Write short note on sub-urban service

11. Explain trapezoidal speed time curve.

12. Explain quadrilateral speed time curve.

13. Example related to trapezoidal speed time curve.

14. Define following term:

1-crest speed 2- Average speed 3- Scheduled speed 4- Acceleration 5- Retardation 6- Costing retardation 7- Stoppage time

Chapter: 5

1. Write a short note on electrical iron

2. Explain water heater

3. Explain with block diagram of microwave oven

4. Explain ceiling fan

5. Explain contraction of electrical washing machine.

6. Explain energy star concept.