B.TECH - Semester 8 electrical system design Question Paper 2019 (nov)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- (a) List out the practices used for improving energy efficiency in lighting and domestic applications.
- (b) A house has a hall, a kitchen and two bedrooms. There are two light points in each of the rooms (including one bath room attached to one of the bed rooms). Each room, hall and kitchen has two plug points. In the hall and kitchen, there is one pow...
- What is the relevance of National electric code?
- Draw the standard symbols for motor-switch and calling bell.
- What is the difference between MCCB and ELCB?
- What do you mean by pre-commissioning tests?
- How do you select cables for sub-circuits in wiring schemes?
- List the protective devices in substations.
- What are the different types of substations?
- Define touch potential and step potential.
- What is the utility of earth-mat installations?
- What are the factors affecting the design of illumination schemes? ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{2} \boldsymbol{=} \mathbf{2 0}$ Marks) P.T.O. Answer any one full question from each module. ## module - I
- (a) What are the different electric services in buildings?
- (b) How do you classify electric installations, based on their voltage levels? Describe the safety aspects applicable to these installations.
- Write notes on the following: (a) BEE
- Write notes on the following: (b) Indian electricity rules 1956
- Write notes on the following: (c) Electricity Act 2003
- Write notes on the following: (d) IS codes for electrical installations. ## module - II
- (a) Two lamps, 1 tube light, 2 sockets $(6 \mathrm{~A})$ and 2 fans are to be installed 1 a room $20 \mathrm{~m} \times 6 \mathrm{~m} \times 5 \mathrm{~m}$, with independent switches. There are two switch boards, palced 1.3 m above ground level and w...
- (b) What are the specifications for air conditioning loads? Suggest the type and rating of AC required for the room mentioned in question 14. a.
- (a) Describe in detail, the selection of drives for small and medium industries. Why do you need starters? What are the different starting methods?
- (b) What are the types of standby generation? Describe their selection criteria.
- Prepare an estimate of quantity of materials required along with the layout and single line diagram from energy meter for a workshop with 3 numbers of 5 Hp ( 400 V , 3 phase) induction motors, one 1 Hp ( 230 V , single phase) induction motor, 0.5 kW ...
- (a) Describe the design considerations for lightning protection.
- (b) Explain the illumination systems of yard lighting and flood lighting.
- What are the different factors to be considered in the design of following installations? (a) Recreational facilities
- What are the different factors to be considered in the design of following installations? (b) High-rise buildings
- What are the different factors to be considered in the design of following installations? (c) Lifts
- What are the different factors to be considered in the design of following installations? (d) Escalators.