B.TECH - Semester 8 electric power utilization and electrical safety Question Paper 2021 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Mention the process of electroplating.
- What are the systems of traction?
- Mention the advantages of dielectric heating.
- What do you mean by extraction of metals?
- Sketch the typical speed-time curves for urban, suburaban and mainline service.
- Write the principle of air conditioning systems.
- Explain the circuit of fluorescent lamp.
- How the glare can be controlled in lighting systems?
- What are the main components of human body impedance?
- What is the basic purpose of grounding. $$ \text { ( } 10 \times 2=20 \text { Marks) } $$ P.T.O. Answer any one full questions from each Module.
- (a) How will you design the resistance heating elements. 10
- (b) What do you mean by electric welding Mention the classification of electric welding. Explain the process of Butt welding and spot welding.
- (a) What are the conditions to be satisfied for electrode position.
- (b) Define laws of electrolysis and define the terms current efficiency and energy efficiency.
- (c) Explain four types of arc welding process.
- (a) Explain how regenerative braking can be obtained in DC-locomotives.
- (b) Derive the equation for specific energy output from driving axles. Write the factors affecting specific energy consumption.
- (a) Explain the power supply systems for electric traction.
- (b) Explain the DC motor performance characteristics for electric traction. What do you mean by parallel operation of traction motors.
- (a) Explain the laws of illumination. 10
- (b) What are the major requirements of 10
- (i) Factory lighting (ii) Flood lighting (iii) Street lighting.
- (a) Compare CFL, LED, fluorescent, vapour lamps and their major applications. 10
- (b) Design a lighting scheme considering the different factors of energy conservation.
- (a) Write the process of ground grid design.
- (b) Write the safety aspects of ground grid operation.
- (a) Explain the grounding of distribution systems.
- (b) Explain electric shock related to human body. Write some IEEE standard 10 related to electric shock. 5559