Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
A person may bleed from the nose when at a great height above the sea level. With reference to this, which one of the following statements is correct ?
The pressure exerted by the blood in blood capillaries is slightly less than the atmospheric pressure
The pressure exerted by the blood in blood capillaries is more than the atmospheric pressure
There is no difference in the internal and external pressures on the walls of the cells and blood capillaries
Blood capillaries in the nose can absorb less oxygen at greater height so it bursts
The Stethoscope used by a medical practitioner is based on the phenomenon of :
multiple reflection of sound waves
scattering of sound waves
refraction of sound waves
none of the above
The Earth travels on its orbit at a speed of approximately 4400 km per hour. Why do we not feel this high speed ?
We are too small compared to the size of the Earth
Our relative speed with respect to the Earth along the Earth's orbit is zего
The gravity of the Earth constantly pulls us towards the Earth's centre
The solar system as a whole is also moving
During free fall of an object :
its potential energy increases and its kinetic energy decreases
its potential energy decreases and its kinetic energy increases
both its potential energy and kinetic energy increase
both its potential energy and kinetic energy decrease
Spectacles used for viewing 3-Dimensional films have :
convex lens
polaroids
concave lens
bifocal lens
Which one of the following pairs of rays is not electromagnetic in nature ?
X-rays and cathode rays
Gamma rays and X-rays
Alpha rays and beta rays
Beta rays and gamma rays
Gases may be distinguished from other forms of matter by their :
lack of colour
ability to flow
inability to form free surfaces
ability to exert a buoyant force
The vesting of 'residuary' powers in the central government by the Constitution of India indicates :
that India is a federal polity
that India is neither federal nor unitary
that India is quasi federal
unitary character of Indian polity
Ice is lighter than pure water and floats on the surface. Which one of the following statements is correct to explain this phenomenon ?
The structure of ice is similar to that of water
Ice has a disordered 3-dimensional structure
Hydrogen-bonding in ice gives an open type structure with interstitial holes
There is no hydrogen bonding in water
Which one of the following is a compound ?
milk
sugar
tea
coffee
