Related Questions

Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation?
A Decrease in effect
B Increase in thrust
C Develops noise
D Develops high pressure
The scattering resulting from fiber imperfections like core-cladding RI differences, diameter fluctuations, strains, and bubbles is
A Rayleigh scattering
B Mie scattering
C Stimulated Brillouin scattering
D Stimulated Raman scattering
Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than
A 5
B 10
C 20
D 35
Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Certain numbers of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a gril hits a goal is 7/10 whereas the probability than a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Which one is a naturally occuring noble gas?
A Sodium
B Potassium
C Argon
D Boron
Which one is the naturally occuring heaviest element?
A Mercury
B Thorium
C Uranium
D Protactinium
The phenomenon occuring during pumping of a liquid solution containing dissolved gases, which may come out of the solution giving rise to gas pockets, is termed as
A Evaporation
B Cavitation
C Sublimation
D Stripping
Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction?
A 2CO ⟷ C + CO2
B CO + H2O ⟷ CO2 + H2
C C + H2O ⟷ CO + H2
D C + 2H2O ⟷ CO2 + 2H2
'Decennial' means consisting of or occuring every ------.
A five years
B ten years
C six years
D twenty years

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