Mahatma Gandhi University (MGU) 2007 B.Tech B-Tech - exam paper

MG University
B-Tech Degree Examination, May 2007

First and Second Semester
Basic Civil Engineering
(Common for all branches)

Time: Three Hours                                                                                                                                                                        Maximum: 100 Marks

Answer all questions Part A

 

1	List and discuss the various tests for bricks.
2	Discuss the various sources of Aggregates for concrete mix.
3	Define bearing capacity of soils and explain its importance in foundation design.
4	Distinguish between English bond and Flemish bond.
5	Write a brief note on seasoning of timber.
6	Discuss the importance of curing in concrete works.
7	Explain local attraction in compass survey.
8	Discuss the advantages of chain survey.
9	What is waste water? Distinguish it from useful water.
10	Write a brief on traffic island.
	(10 x 4 = 40 marks)
	Part B
11	Discuss the importance of steel reinforcement in RCC work. Give detailed specification for reinforcement steel.
	Or
12	Discuss the preparation and applications of cement mortar in building construction. (12 marks)
13	Write a detailed note on raft foundations. (12 marks)
	Or
14	Discuss the merits and demerits on brick masonry over rubble masonry. (12 marks)
15	Explain water cement ratio and workability in concrete works. (12 marks)
	Or
16	Sketch a typical steel truss for an industrial building to support GI sheet covering. Clear span 3 M. Slope 1 in 6 (12 marks)
17	Define bench mark. Explain the principle of calculating reduced level in leveling works. (12 marks)
	Or
18	The following offsets were taken from a chain line AB:- Chainage: 0 28 52 80 102 Off set: 15 left 20 right 16 right 12 left 0 All measurements are in M. Calculate the area of the plot. (12 marks)
19	Briefly discuss the classification of roads.
	Or
20	What are water borne diseases? How it is prevented through water treatment? (12 marks)

 

MG University
B. Tech Degree Examination, May/June 2001
First and Second Semester
Paper VIII Basic Electrical Engineering
(Common for all branches)

Time: Three Hours                                                                                                                                                                   Maximum: 100 Marks

Answer all questions Each question carries 4 marks each
Part A

1

State and explain Kirchoff's voltage law.

2

State and explain Faradays Laws of Electromagnetic Induction.

3

Explain the concepts of phase and phase difference.

4

Discuss the stator parts of a D.C. machine briefly.

5

Discuss the cooling of transformers.

6

State the principle of operation of a 3phase induction motor.

7

Discuss the application of moving iron instruments.

8

Discuss the working of a mercury vapour lamp.

9

Discuss the electric supply system for traction in India.

10

Discuss the advantages and disadvantages of overhead distribution systems.

Part B
Answer all questions Each question carry 12 marks each

11

a) Discuss the concept of electric current flow, electromotive force and power conversion.
b) 3 batteries P, Q and R consisting of 50, 55 and 60 cells in series supply in parallel, a common load of 100 Amps. Each cell has internal EMF of 2 Volts and a internal resistance of 0.005 ohm. Determine the current supplied by each battery and the terminal voltage.

Or

12

a) Discuss the production of statically and dynamically induced EMF.
b) Two coils having 50 and 500 turns respectively are wound on a closed iron circuit of section 50 sq.cm and mean length 120 cms. Estimate the mutual inductance between the coils and each self inductance. The relative permeability of iron is 1000.

13

a) Discuss the importance of RMS value of an AC wave? What is form factor?
b) Four coils are connected in series. Each has an induced EMF of 100 Volts, 50 HZ, but with a phase different of 14 degrees between them. What is the effective value of the total EMF?

Or

14

a) Discuss the features of a balanced three phase system.
b) Discuss the relationship between line and phase values of currents in a balanced star and delta connected systems.

15

a) Derive the EMF equation of a D.C. Generator.
b) Discuss the various classifications of D.C. generators.

Or

16

a) What are the losses in transformer? How these can be experimentally determined?
b) Discuss the working principle of a 3phase induction motor.

17

a) Explain with neat sketches the working of moving coil instruments.
b) Explain the selection criteria for traction motors.

Or

18

a) Discuss the working and parts of the induction type energy meter.
b) With a neat diagram explain the working of the fluorescent tube circuit.

19

a) Compare hydro-electric and thermal power generations.
b) Discuss the advantages of High Voltage transmission.

Or

20

a) What are the criteria for selection of a distribution voltage?
b) Draw a one line diagram of a typical power system and name the parts.