HHM Assignment 2

MAHATMA GANDHI INSTITUTE OF TECHNOLOGY

Gandipet, Hyderabad 500 075

DEPARTMENT OF CIVIL ENGINEERING

HYDRAULICS & HYDRAULIC MACHINERY

Assignment – II

Date of Issue: 29 March, 2012

Last Date for Submission: 9 April, 2012

JANUARY 2012

SET 1

1. (a) Differentiate between speed Ratio and jet ratio in a Pelton wheel. What are the ranges of these ratios.

(b) What is Hydraulic Brake in a Pelton wheel? What for it is used?

(c) How do you design the size of the buckets and number of buckets in a Pelton wheel? [5+5+5]

2. (a) Obtain an expression for the work done by impeller of a centrifugal pump on water per second per unit weight of water.

(b) A centrifugal pump is to discharge 0.12m3/s at a speed of 1400 r.p.m. against a head of 30 m. The diameter and width of the impeller at outlet are 25 cm and 5 cm respectively. If the manometric efficiency is 75% determine the vane angle at outlet. [7+8]

3. (a) Explain the working of a Servo-motor with a neat sketch.

(b) A turbine develops 7300KW power under a head of 25m and at 135rpm speed.What is its specific speed? What would be the normal speed and output under a head of 29m. [7+8]

SET 4

4. (a) A Kaplan turbine generates 45 MW under a head of 22 m. The overall efficiency is 90% and the ratio of outlet to hub diameter is 2.85. Calculate the speed, specific speed and diameter of the runner.

(b) A Pelton wheel has a tangential velocity of buckets of 15 m/sec. The water is being supplied under a head of 36m at the rate of 20 lit/sec. The bucket deects the jet through an angle of 1600. If the coefficient of velocity of the nozzle is 0.98, and the power produced by the turbine. [7+8]

5. (a) What is the significance of Unit Power, Unit speed and unit discharge? Explain.

(b) Prove that for s single jet Pelton wheel, the specific speed is given by the relation:NS = 250d/D*n Where NS = Specific speed d = diameter of the jet in metres, D = diameter of the runner in metres n= overall efficiency of the wheel. Take coefficient of velocity for the nozzle as 0.98 and bucket speed as 0.46times the speed of the jet. [7+8]

6. (a) Define specific speed of a centrifugal pump. What is its significance..

(b) A centrifugal pump discharges 1200 lit/minute against a head of 16.5m when the speed is 1500 rpm. The diameter of the impeller is 35 cm and the power required is 6 h.p. A geometrically similar pump of 45 cm is to run at 1750 rpm. Assuming equal efficiencies, and i. the head developed ii. the discharge iii. power developed by 45 cm pump.

To download 2012 question papers: http://www.mediafire.com/?nc6995fahg7zn69

BMCP Assignment No. 2

MAHATMA GANDHI INSTITUTE OF TECHNOLOGY

Gandipet, Hyderabad 500 075

DEPARTMENT OF CIVIL ENGINEERING

Building Materials, Construction & Planning

Assignment – II

Date of Issue: 21^st March, 2012

Last Date for Submission: 4^th April, 2012

1.    Distinguish between the English and Flemish Bonds in brick masonry.

2.    Write a note on Ashlar Masonry.

3.    Explain the following terms in the stone masonry.

                                      I.        Perpend

                                    II.        Queen Closer 

                                   III.        Bat

                                  IV.        Quion

                                    V.        Mitred Closer

                                  VI.        Through Stone

                                 VII.        Buttress                      

                                VIII.        Lap

4.    What are the requirements of good plaster?

5.    What is scaffolding? Enumerate on different types of scaffolding.

6.    Explain the process of shoring. What are the types of shoring?

7.    What are the requirements of ventilation system? Enumerate on different types of providing ventilation.

8.    Write a short note on Accoustic Defects.

9.    What are the factors to be considered in acoustic design of buildings?

10.  Enumerate on fire safety requirements of buildings.

11.  Write a note on Classification of Buildings.

12.  What are the factors to be considered in the Planning of Buildings.

13.  Write a note on Building Bye-laws.

14.  Write a note on the following

                                      I.        Lux Levels

                                    II.        Constituents of a Paint

                                   III.        Underpinning

                                  IV.        Fire Load

                                    V.        Air changes per hour

   

CAD LAB RECORD

CAD of Buildings Lab

Record Writing - Coverage of Commands in Exercises

Ex No.	Date		Commands to be written
	Batch 1	Batch 2
	09/01/12	28/12/11	Introduction to AUTOCAD, hardware requirements, advantages of Automated drafting Layout of AUTO CAD Screen
1	23/01/12	04/01/12	Conventional Signs POINT, LINE, ARC, RECTANGLE, BHATCH, UNITS & REGENERATE, DDPTYPE
2	30/01/12	18/01/12	Stretcher/Header Bond Coordinate systems & Drawing modes ORTHO, POLAR. OSNAP
3	04/02/12	01/02/12	English/Flemish Bond SNAP, GRID, LWT, The use of FUNCTION KEYS Object Selection methods – PICK BOX, WINDOW, CROSSING WINDOW, POLYGON,WINDOW POLYGON & FENCE,
4	06/02/12	08/02/12	Stair Case Display commands like PAN, ZOOM & SCALE,
5	13/2/12	12/2/12	Practice Editing Commands like COPY MOVE, TRIM, OFFSET etc. ARRAY
6	05/03/12	07/03/12	King Post Truss BREAK, Managing Object Properties LIKE COLOR, LINE TYPE AND LINE WEIGHT with CHANGE, PROPERTIES TOOLBAR & MATCHPROP
7	12/03/12	14/03/12	Sloped Roof Building QSELECT, TEXT & DIMENSIONING COMMANDS
8	19/03/12	21/03/12	Sloped Roof Building – Contd. FILLET, CHAMFER, PLINE & EXPLODE
9	26/03/12	28/03/12	Flat roof Building BLOCK, WBLOCK & INSERT
10	02/04/12	04/04/12	Flat roof Building LIST, REGION, Determining the properties of Area using MASSPROP

Note: Paste the Drawing drafted in the laboratory on the left hand side in the record.

TECHNICAL QUIZ IN NIRVANA 2012

Hi everyone,our jp sir is conducting a technical quiz in nirvana 2012,it contains simple questions from our subjects.Interested people can give your names to jp sir by Monday.Quiz will be conducted on 13th
rules:
*Two members per team
*one from 1st year and one from 2nd year
REGISTRATION FEE:60 per team

BMCP

Trench Shoring 
http://www.youtube.com/watch?v=_YddAbeesnI&feature=endscreen&NR=1

BMCP

Bridge Shoring System
Shoring is basically a temporary structure to support a component of a structure namely a wall, or a slab or a beam etc. 
The following video demonstates the installation of a shoring system for a bridge.
http://www.youtube.com/watch?v=H_X7mEObSYQ
V.Venkat Ramayya, Asst. Professor, CED.

BMCP

Few interesting videos and links on Aluminium Composite Panel (ACP)

http://www.youtube.com/watch?NR=1&feature=endscreen&v=b_PO1T32L8o http://www.aluminumcompositepanelindia.com/ 
http://www.youtube.com/watch?v=UaScyQCfcZE&feature=BFa&list=PL472D5FC8F448EC38&lf=results_main


V.Venkat Ramayya, Asst. Professor, CED.