General Science - Online Test
Q1. One example where science predates technology is
Answer : Option B
Explaination / Solution:
The idea of wireless communication predates the discovery of "radio" with experiments in "wireless telegraphy" via inductive and capacitive induction and transmission through the ground, water, and even train tracks from the 1830s on. James Clerk Maxwell showed in theoretical and mathematical form in 1864 that electromagnetic waves could propagate through free space.
Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system
Q2. Can the net factor income earned from abroad be positive?
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. The amount of energy a capacitor can store is called its
Answer : Option B
Explaination / Solution:
Energy stored in a capacitor
Q4. The molar mass of Al2O3 is
Answer : Option A
Explaination / Solution:
Molar mass
= [ 2 x ( atomic mass of Al ) , 3 x ( atomic mass of O ) ]u
=
= ( 54 + 48 ) u
= 102 u.
Q5. Which of the following assumption is not necessary for the cardinal utility theory?
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. When a mass is rotating in a plane about a fixed point, its angular momentum is directed along
Answer : Option B
Explaination / Solution:
cular to both
and that is along the axis of rotation according to right hand screw rule.
Q7. A wooden block is taken to the bottom of a deep, calm lake of water and then released. It rises up with a
Answer : Option B
Explaination / Solution:
The wooden block rises up with acceleration,
a =
Upthrust and mass of block will be constant.So the acceleration will also be a constant throughout mo
Q8. Basophils help the body defense by
Answer : Option C
Explaination / Solution:
Basphils are responsible for inflammatory reactions during immune response, as well as in the formation of acute and chronic allergic diseases. They can perform phagocytosis (cell eating), produce histamine and serotonins that induce inflammation, and heparin that prevents blood clotting.
Q9. Which of the following is prepared by cyanamide process?
Answer : Option D
Explaination / Solution:
Q10. Cellular genes which are known to take part in producing cancer are termed as
Answer : Option C
Explaination / Solution:
Cellular genes which are known to take part in producing cancer are called cellular oncogenes. Cancer is caused due to uncontrolled division of cells to produce tumor on body.
