What is Work ?
In our daily language, we use the word work for some sort of exertion, physical or mental or at times for various activities e.g. while writing we say that we are doing work.
But in Physics, the term work is used in relation to the movement of the force applied on the body. The work is said...
What is a transformer ?
A transformer is a device by which the amplitude of an alternating e.m.f. can be increased or decreased.
It does not affect the frequency of the alternating voltage.
It works on the principle of electromagnetic induction and makes use of two coils coupled together with a soft iron core.
Working Principle ;
A transformer cannot be used with direct...
Heat Treatment – A combination of operation involving heating and cooling under controlled conditions for obtaining desired properties in a material.
Heat Treatment also infulences creep resistance of steel. At temperature of 500 degree Celcius or above the max cree resistance is usually produced by normalizing, provided drawing temp. is about 100 degree more than the test temperature
The lowest creep resistance...
Hooke's Law ;
Sir Robert Hooke's (1635 - 1703 ) Law states that the stress is directly proportional to strain upto elastic limit.
Heat Treatment - A combination of operation involving heating and cooling under controlled conditions for obtaining desired properties in a material.
Those properties of a material that define its behavior under applied force are called mechanical properties.
Mechanical Properties ;
These...
World Cup Cricket Winners
Year
Host Country
Winner
Runner – Up
1975
England
West Indies
Australia
1979
Ebgland
West Indies
England
1983
England
India
West Indies
1987
India and Pakistan
Australia
England
1991
Australia and New Zealand
Pakistan
England
1996
India, Sri Lanka, Pakistan
Sri Lanka
Australia
1999
England
Australia
Pakistan
2003
South Africa
Australia
India
2007
West Indies
Australia
Sri Lanka
2011
India, Sri Lanka, Bangladesh
India
Sri Lanka
2015
Australia & NewZealand
Australia
NewZealand
2019
England
England
NewZealand
2023
India
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20 – 20 World Cup Cricket Winners
Year
Host Country
Winner
Runner – Up
2007
South Africa
India
Pakistan
2009
England
Pakistan
Sri Lanka
2010
West Indies
England
Australia
2012
Sri Lanka
West Indies
Sri Lanka
2014
Bangladesh
Sri Lanka
India
2016
India
West Indies
England
Important Civilizations and their excavators ;
Site
River
District
State/Province
Excavators
Harappa
Ravi
Montgom
ery
Punjab (Pakistan)
Daya Ram Sahani (1921). Madho Swaroop Vatsa (1926). Wheeler (1946)
2.Mohenjodaro
Indus
Larkana
Sindh (Pakistan )
Rakhalal Das Banerjji (1992), Mackay (1921), Wheeler (1930)
3.Chanhudaro
Indus
Nawabshah
Sindh (Pakistan)
Mackay (1925), N.G. Mazumdar (1931)
4. Lothal
Bhogava
Kathiyawar
Gujarat (India)
S.K. Rao (1954)
5. Kalibanga
Ghaggar
Hanumangarh
Rajasthan (India)
Amalanand Ghosh (1951), B.B. Lal and B.K. Thapar (1961)
6. Banawali
Ghaggar
Hissar
Haryana (India)
R.S. Bist (1973)
7. Dholavira
Luni
Kutch
Gujarat (India)
J.P. Joshi
Ancient World Civilizations
Serial No.
Civilization Name
Modern Area
River...
Important Dams in India details :
Dams
River
State
Tehri
Bhagirathi
Uttarakhand
2. Mulliperiyar
Periyar
Kerela
3. Bhakra
Sutlej
Himachal Pradesh
4. Hirakund Dam
Mahanadi
Odisha
5. Nagarjuna Sagar Dam
Krishna
Andhra Pradesh
6. Sardar Sarovar Dam
Narmada
Gujarat
7. Indira Sagar Dam
Narmada
Madhya Pradesh
8. Tungabhadra Dam
Tungabhadra
Karnataka
9. BhavaniSagar Dam
Bhavani
Tamil Nadu
10. Koyna Dam
Koyna
Maharashtra
11. Idukki Dam
Periyar
Kerela
12. Krishna Raja Sagar
Kaveri
Karnataka
13. Mettur Dam
Kaveri
Tamil Nadu
14. Srisailam Dam
Krishna
Andhra Pradesh
15. Banasura Sagar Dam
Kabini
Kerela
India's First Women to :
Member of Parliament (M.P.) - Radhabai Subbaryan
Become Governor - Sarojini Naidu ( from U.P. )
Become I.P.S. - Kiran Bedi
Become I.A.S. - Anna George
Become Chief Minister - Sucheta Kriplani
be awarded Ashok Chakra - Neerja Bhanot
climb Mount Everest - Bichendri Pal
climb Mount Everest twice - Santosh Yadav
become Miss...
Material Science/ Metallurgy/ Mechanical Interview Questions
Answers are marked bold
Q.1 ] A Surface hardening process for medium and high carbon steels making use of oxy-acetylene flame
is known as ________
A. Cyaniding
B. Nitriding
C. Flame hardening
D. Induction hardening
Q.2 ] Capacity of a material to store strain energy is known as ______.
A. Resilience
B. Creep
C. Fatigue
D. Stiffness
Q.3 ] Which is not a indentation testing machine?
A....
What Should You Choose Between a Carport and a Garage?
Look no further if you require additional storage space for your belongings or vehicles and are unclear of the benefits of a carport vs. garage.
Both carports and garages provide easy and useful additional storage space for vehicles, tractors, and other motorised equipment, but they are not the same. When deciding...
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