1. Stainless steel contains steel and ___________.
a) manganese
b) vanadium
c) nickel
d) chromium
e) None of these
Hello Readers,
As you know Railway exam has started from today and you must be busy in your preparation. Here we are posting a mini test, which contains some selected questions for your practice. Keep practicing, keep raising.
1. Clear night are colder than cloudy nights because of --
a) conduction
b) condensation
c) radiation
d) insolation
1. The ozone layer absorbs ---
a) infrared radiation
b) ultraviolet radiation
c) X-rays
d) gamma rays
1. The percentage of fresh water on the Earth's surface is nearly:
a) 4
b) 3
c) 8
d) 5
1. The Constitution of India was adopted on ---
a) 26th january, 1950
b) 26th january, 1949
c) 26th November, 1949
d) 15th August, 1947
1. What is the maximum limit of sound intensity in decibel units beyond which a human being cannot hear?
a) 80 decibel
b) 85 decibel
c) 90 decibel
d) 95 decibel