This document contains a 12-page test for the SAIL Model Test-2014. It consists of multiple choice questions related to thermodynamics, internal combustion engines, mechanics of materials, metallurgy and strength of materials. The test covers topics such as definitions of thermodynamic concepts, properties of gases, heat engines, engine cycles, materials properties and failure theories. Negative marking is included, with 33% of the marks for each incorrect answer being deducted. Calculators are not permitted.
Diseno en ingenieria mecanica de Shigley - 8th ---HDes
descarga el contenido completo de aqui http://paralafakyoumecanismos.blogspot.com.ar/2014/08/libro-para-mecanismos-y-elementos-de.html
Diseno en ingenieria mecanica de Shigley - 8th ---HDes
descarga el contenido completo de aqui http://paralafakyoumecanismos.blogspot.com.ar/2014/08/libro-para-mecanismos-y-elementos-de.html
Electrical engineering objective type questions(www.allexamreview.com) أساأ...Ahmed Mohammed Alhntoshi
UNIT NAME NO OF QNS
1 DC GENERATORS 124
2 DC MOTORS 123
3 TRANSFORMERS 135
4 THREE PHASE INDUCTION MOTORS 101
5 SINGLE PHASE INDUCTION MOTORS 110
6 SYNCHRONOUS MOTORS 124
7 TRANSMISSION AND DISTRIBUTION 102
8 CABLES 56
TOTAL 875
GATE 2013 CHEMICAL ENGINEERING SolutionsSundar Kannan
Solutions for gate 2013 chemical engineering paper.
The same in a powerpoint format can be downloaded from:
https://drive.google.com/file/d/0B6g7hNFF87j3ZkQydGFEQ3QxaVE/edit?usp=sharing
mskannan20@gmail.com
in this presentation i have discussed about question related to power plant engineering. it can be useful ESE 2021 mechanical Engineering. Power plant contains description about steam and Gas turbine, jet Engine.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
1. SAIL Model Test-2014 - Me
Page 1 of 12
SAIL Model Test[Negative marking is there, 33% of marks allotted will be
deducted for each wrong answer]
Calculators are not allowed
1. A definite area or space where some thermodynamic process takes place
is known as
A thermodynamic system
B thermodynamic cycle
C thermodynamic process
D thermodynamic law
Ans. (a)
2. Which of the following is an intensive property of a thermodynamic
system?
A volume
B Temperature
C mass
D energy
Ans. (b)
3. Temperature at which the volume of the gas becomes 0 is called
A absolute scale of temperature
B absolute 0 temperature
C absolute temperature
D none of these
Ans. (b)
4. The unit of energy in SI units is
A joule
B joule metre
C watt
D joule/metre
Ans. (a)
5. 1 joule is equal to
A 1 Nm
B kNm
C 10 Nm/s
D 10 kNm/s
2. Page 2 of 12
Ans. (a)
7. The following is an SI engine
A diesel engine
B petrol engine
C gas engine
D none of the above
Ans. (b)
8. In a 4 stroke cycle petrol engine during suction stroke
A only air is sucked in
B only petrol is sucked in
C mixture of petrol and air is sucked in
D none of the above
Ans. (c)
9. The thermal efficiency of petrol engine as compared to diesel engine is
A lower
B higher
C same for same power output
D same for same speed
Ans. (a)
10. Compression ratio of diesel engines may have a range
A 8 to 10
B 10 to 15
C 16 to 20
D none of the above
Ans. (c)
11 The thermal efficiency of good I.C engine at the rated load is in the range
of
A 80 to 90%
B 60 to 70%
C 30 to 35%
D 10 to 20%
Ans. (c)
12 Carburettor is used for
A SI engines
B gas engines
C CI engines
D none of the above
Ans. (a)
SAIL Model Test-2014 - Me
3. Page 3 of 12
13 In SI engine to develop high voltage for spark plug
A battery is installed
B distributor is installed
C carburetor is installed
D ignition coil is installed
Ans. (d)
14 In a four cylinder petrol engine the standard firing order is
A 1-2-3-4
B 1-4-3-2
C 1-3-2-4
D 1-3-4-2
Ans. (b)
15 The knocking is SI engines increases with
A increase in inlet air temperature
B increase in compression ratio
C increase in cooling water temperature
D all of the above
Ans. (d)
16 Petrol commercially available in India for Indian passenger cars has
octane number in the range
A 40 to 50
B 60 to 70
C 80 to 85
D 95 to 100
Ans. (c)
17 The knocking tendency in C.I engines increases with
A decrease of compression ratio
B increase of compression ratio
C increasing the temperature of inlet air
D increasing cooling water temperature
Ans. (a)
18 The air standard otto cycle comprises
A two constant pressure processes and two constant volume processes
B two constant pressure and two constant entropy processes
C two constant volume processes and two constant entropy processes
D none of the above
Ans. ( c)
19 The thermal efficiency of theoretical otto cycle
A increases with increase in compression ratio
B increases with increase in isentropic index gamma
SAIL Model Test-2014 - Me
4. Page 4 of 12
C does not depend upon the pressure ratio
D follows of the above
Ans. (a)
20 Thermal efficiency of a gas turbine plant has compared to diesel engine
plant is
A higher
B lower
C same
D may be higher or lower
Ans. (c)
21 Mechanical efficiency of a gas turbine as compared to internal
combustion Reciprocating engine is
A higher
B lower
C same
D unpredictable
Ans. (a)
22 For a gas turbine the pressure ratio may be in the range
A 2 to 3
B 3 to 5
C 16 to 18
D 18 to 22
Ans. (b)
23 Thermal efficiency of a closed cycle gas turbine plant increases by
A reheating
B intercooling
C regenerator
D all of the above
Ans. (c)
24With the increase in pressure ratio thermal efficiency of a simple gas
turbine Plant with fixed turbine inlet temperature
A decreases
B increases
C first increases and then decreases
D first decreases and then increases
Ans. (b)
25In two stage turbine plant, reheating after first stage
A increases work ratio
B decreases work ratio
C does not affect work ratio
SAIL Model Test-2014 - Me
5. Page 5 of 12
D none of the above
Ans. (a)
26For a jet propulsion unit , ideally the compressor work and turbine work
are
A equal
B unequal
C not related to each other
D unpredictable
Ans. (a)
27 Various kinematic pairs are given below choose the lower pair
A ball bearings
B tooth gears in mesh
C cam and follower
D crank shaft and bearing
Ans. (c)
30A kinematic chain is known as a mechanism when
A none of the link is fixed
B one of the links is fixed
C two of the links are fixed
D all of the links are fixed
Ans. (b)
31 Which of the following is an inversion of single slider crank chain?
A beam engine
B watt’s indicator mechanism
C elliptical trammels
D whitworth quick return motion mechanism
Ans. (d)
32 control volumes refer to
A a fixed region in space
B a specified mass
C an isolated system
D a closed system
Ans. (a)
33An isentropic process is always
A irreversible and adiabatic
B reversible and isothermal
C friction less and irreversible
D reversible and adiabatic
SAIL Model Test-2014 - Me
6. Page 6 of 12
Ans. (d)
34Work done in a free expansion process is
A 0
B minimum
C maximum
D positive
Ans. (a)
1. Time dependent permanent deformation is called
(a) Plastic deformation
(b) Elastic deformation
(c) Creep
(d) Anelastic deformation
1. c
2. Figure-out the odd point in the following
(a) Proportinal limit
(b) Elastic limit
(c) Yeild point
(d) Fracture point
2. d
3. If a material is subjected to two incremental true strains namely ε
1
and ε
2
,
then the total true strain is
(a) ε
1
* ε
2
(b) ε
1
- ε
2
(c) ε
1
+ ε
2
(d) ε
1
/ ε
2
3. c
4. Engineering stress-strain curve and True stress-strain curve are equal up
to
(a) Proportional limit
(b) Elastic limit
(c) Yield point
(d) Tensile strength point
4. c
5. Value of Poisson’s ratio for ionic solids in the range of
(a) 0.1
(b) 0.2
(c) 0.3
(d) 0.4
SAIL Model Test-2014 - Me
7. Page 7 of 12
5. b
6. Hydrostatic stress results in the following
(a) Linear strain
(b) Shear strain
(c) Both linear and shear strains
(d) None
6. d
7. High elastic modulus in materials arises from
(a) High strength of bonds
(b) Weak bonds
(c) combination of bonds
(d) None
7. a
17. The rails are welded by
(a) Thermit welding
(b) Gas welding
(c) Arc welding
(d) MIG welding
Ans: A
8. Change in elastic modulus for ordinary materials between 0 K and
melting point is
(a) 10-20% increase
(b) 10-20% decrease
(c) 80-90% decrease
(d) 80-90% increase
8. b
9. Bauschinger effect
(a) Hysteresis loss during loading and unloading
(b) Anelastic deformation
(c) Dependence of yield stress on path and direction
(d) None
9. c
10. Shape of true stress-strain curve for a material depends on
(a) Strain
(b) Strain rate
(c) Temperature
(d) All
10. d
SAIL Model Test-2014 - Me
8. Page 8 of 12
11. Toughness of a material is equal to area under ____________ part of the
stress-strain curve.
(a) Elastic
(b) Plastic
(c) Both
(d) None
11. c
12. True stress-strain curve need to be corrected after
(a) Elastic limit
(b) Yield limit
(c) Tensile strength
(d) no need to correct
12. c
14. As compared with conventional stress-strain curve, the true stress-strain
curve is
(a) Above and right
(b) Below and right
(c) Above and left
(d) Below and left
14. c
15. According to distortion-energy criterion, yielding occurs when
(a) Distortion energy reaches a critical value
(b) Second invariant of the stress deviator exceeded some critical value
(c) Octahedral shear stress reaches a critical value
(d) All
15. d
17. Plastic deformation results from the following
(a) Slip
(b) Twinning
(c) Both
(d) None
17. c
1. Which of the following material has the maximum ductility?
(a) Mild steel
(b) Copper
(c) Zinc
(d) Aluminium
Ans. (a)
3. Steel containing upto 0.15% carbon is known as
(a) mild steel
(b) dead mild steel
(c) medium carbon steel
(d) high carbon steel
SAIL Model Test-2014 - Me
9. Page 9 of 12
Ans. (b)
6. The material commonly used for crane hooks is
(a) cast iron
(b) wrought iron
(c) mild steel
(d) aluminium
Ans. (b)
8. The steel widely used for motor car crankshafts is
(a) nickel steel
(b) chrome steel
(c) nickel-chrome steel
(d) silicon steel
Ans. (b)
10. 18/8 steel contains
(a) 18 per cent nickel and 8 per cent chromium
(b) 18 per cent chromium and 8 per cent nickel
(c) 18 per cent nickel and 8 per cent vanadium
(d) 18 per cent vanadium and 8 per cent nickel
Ans. (b)
11. Ball bearing are usually made from
(a) low carbon steel
(b) high carbon steel
(c) medium carbon steel
(d) high speed steel
Ans. (c)
14. The metal suitable for bearings subjected to light loads is
(a) silicon bronze
(b) white metal
(c) monel metal
(d) phosphor bronze
Ans. (d)
15. Thermoplastic materials are those materials which
(a) are formed into shape under heat and pressure and results in a permanently hard product
(b) do not become hard with the application of heat and pressure and no chemical change occurs
(c) are flexible and can withstand considerable wear under suitable conditions
(d) are used as a friction lining for clutches and brakes
Ans. (b)
3. The temperature at which the new grains are formed in the metal is called
(a) lower critical temperature
(b) upper critical temperature
(c) eutectic temperature
(d) recrystallization temperature
Ans. (d)
5. During hot working of metals
(a) porosity of the metal is largely eliminated
(b) grain structure of the metal is refined
(c) mechanical properties are improved due to refinement of grains
(d) all of the above
Ans. (d)
SAIL Model Test-2014 - Me
10. Page 10 of 12
8. The process extensively used for making bolts and nuts is
(a) hot piercing
(b) extrusion
(c) cold peening
(d) cold heading
Ans. (d)
10. The algebraic difference between the maximum limit and the basic size is called
(a) actual deviation
(b) upper deviation
(c) lower deviation
(d) fundamental deviation
Ans. (b)
12. A basic hole is one whose
(a) lower deviation is zero
(b) upper deviation is zero
(c) lower and upper deviations are zero
(d) none of these
Ans. (a)
15. According to Indian standard specification, 100 H6/g5 means that
(a) tolerance grade for the hole is 6 and for the shaft is 5
(b) tolerance grade for the shaft is 6 and for the hole is 5
(c) tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7
(d) tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
Ans. (a)
14. The maximum energy that can be stored in a body due to external loading upto the elastic limit is
called
(a) resilience
(b) proof resilience
(c) strain energy
(d) modulus of resilience
Ans. (b)
1. When a machine member is subjected to torsion, the torsional shear stress set up in the member is
(a) zero at both the centroidal axis and outer surface of the member
(b) Maximum at both the centroidal axis and outer surface of the member
(c) zero at the centroidal axis and maximum at the outer surface of the member
(d) none of the above
Ans. (b)
4. At the neutral axis of a beam,
(a) the layers are subjected to maximum bending stress
(b) the layers are subjected to tension
(c) the layers are subjected to compression
(d) the layers do not undergo any strain
Ans. (d)
Ans. (a)
SAIL Model Test-2014 - Me
11. Page 11 of 12
Ans. (a)
12. Rankine’s theory is used for
(a) brittle materials
(b) ductile materials
(c) elastic materials
(d) plastic materials
Ans. (a)
13. Guest’s theory is used for
(a) brittle materials
(b) ductile materials
(c) elastic materials
(d) plastic materials
Ans. (b)
10. The residential compressive stress by way of surface treatment of a machine member subjected to
fatigue loading
(a) improves the fatigue life
(b) deteriorates the fatigue life
(c) does not affect the fatigue life
(d) immediately fractures the specimen
Ans. (a)
Ans. (b)
Ans. (c)
SAIL Model Test-2014 - Me
12. Page 12 of 12
6. In case of thick cylinders, the tangential stress across the thickness of cylinder is
(a) maximum at the outer surface and minimum at the inner surface
(b) maximum at the inner surface and minimum at the outer surface
(c) maximum at the inner surface and zero at the outer surface
(d) maximum at the outer surface and zero at the inner surface
Ans. (b)
SAIL Model Test-2014 - Me