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Wednesday, 9 August 2017

GK quiz 1


GK quiz 1

This is the GK QUIZ 1 Here Is the collection of 10 gk questions you can attempt these and Can grade up your knowledge So guys let's start.

  1. Which of the following are the main sources of knowledge about Indus Valley Civilization ?

  2. inscriptions
    Coins
    Palm and barch leaf manuscripts
    Archaeological excavations

  3. The Indus Valley Civilization was discovered in

  4. 1902
    1921
    1922
    1930

mechanical quiz 1

mechanical quiz 1

Hello guys, Here is a mechanical quiz 1 for you and also you can grade up your knowledge so let's start guys

  1. A cycle consisting of one constant pressure, one constant volume and two isentropic processes is k

  2. Carnot cycle
    Stirling cycle
    Otto cycle
    Otto cycle

  3. The efficiency and work ratio of a simple gas turbine cycle are

  4. low
    very low
    high
    very high

Tuesday, 8 August 2017

top 25 mechanical engineering interview questions & answers





1. Explain the reason that why big tyres are used in rear of vehicles.
1. Large tyres provide larger surface area touching the ground, thus providing the more pulling power. Basically tractors have larger rear tyres because tractors don’t have to operate at higher speeds, thus getting the same ground speed with larger tyres. Moreover gear ratios don’t have to be as high as b/c of the tyres.


2. Explain the reason that why the tyres are always black in colour. Is this phenomena related to the heat conduction?
Tyres colour is black due to the proportion of carbon mixed in it during the vulcanization of the rubber, to make the tyre shear resistant. Without vulcanization tyres won't be able to bear the friction heat and stress of the road. Thus carbon is responsible for giving tyres the prominent black colour. Adding of carbon prevents tyres from rapidly deteriorating because when ozone combines with the ultraviolet light from the sun. It attacks the polymer of the tyre.

Monday, 7 August 2017

TOP 15 Engineering Mechanics Questions & Answers



1. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
A
True
B
False

Answer: Option B

2.The friction experienced by a body, when in motion, is known as
A
rolling friction
B
dynamic friction
C
limiting friction
D
static friction

Answer: Option B

3. Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
A
v
B
v/2
C
v/4
D
v/8

Answer: Option B

4. The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.
A
Agree
B
Disagree

Answer: Option A

5. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
A
equal to
B
less than
C
greater than

Answer: Option A

Saturday, 5 August 2017

Are You Ready For Introduction Of Engineering Mechanics (part-1)

Hello guys, today we are going to discuss about the Basic introduction of the engineering mechanics So guys, Let’s start
ENGINEERING MECHANICS:
The subject of Engineering Mechanics is that branch of Applied Science, which deals with the laws and principles of Mechanics, along with their applications to engineering problems. As a matter of fact, knowledge of Engineering Mechanics is very essential for an engineer in planning, designing and construction of his various types of structures and machines

Wednesday, 5 July 2017

list of inventors and their inventions (part-2)


here is the list of popular inventors and their inventions:-

Invention
Inventor
Vernier Scale
Pierre Vernier
Atomic Number
Mosley
Law of Motion & Gravitation
Newton
Laws of Electrical Resistance
Ohm
Nuclear Reactor
Enrico Fermi
Fuel Cell
William Robert Glove
Celluloid
Alexander Parkes
Hydrogen Bomb
Edward Teller
Computer Architecture
John Von Neumann
Airplane
Wright Brothers (Orville and Wilbur)
Steam Engine
James Watt
Logarithms
John Napier
Theory of Evolution
Charles Darwin
Transformer
Otto Blathy
Cinematography
Edison
Stethoscope
Rane Laennec
Thermo Flask
Dewar
Battery
Alessandro Volta
Barometer
Evangelista Torricelli
Camera
Steven Sasson
Analytical Engine
Thomas Edison
Diesel Engine
Rudolf Diesel
Helicopter
Broquet
Dynamite
Alfred Nobel
First Computer
John Mauchly and J. Presper Eckert
Lift
Otis
Guitar
Adolph Rickenbacker
Light Emission Diode
Nick Holonyak and Oleg Losev
Laser Printer
Gary Starkweather
Mobile Phone
Martin Cooper
MicroScope
Zacharias Janssen
Microwave Oven
Percy Spencer
Printing Press
Johannes Gutenberg
Video Games
Ralph H. Baer
Google
Larry Page
Mozilla
Dave Hyatt and Blake Ross
Facebook
Mark Zuckerberg
Twitter
Evan Williams, Jack Dorsey, and Biz Stone
Microsoft
Bill Gates and Paul Allen
Internet
Vint Cerf
Email
Shiva Ayyadurai
Apple Computers
Steve Jobs
World Wide Web (WWW)
Sir Tim Berners- Lee
IP Address
Robert E. Kahn
Micro Processor
Federico Faggin

Sunday, 2 July 2017

genral knowladge (part-6)

1.Capital of Finland is?
1.Helsinki.

2.The boundary 'Durand Line' is between Pakistan and?

2. Afghanistan.

3.Headquarter of SAARC is in?

3.Kathmandu, Nepal.