General Science - Online Test
Q1. The system of adjacent cell walls that is continuous throughout the plant is called as
Answer : Option C
Explaination / Solution:
The apoplastis the system of adjacent cell walls that iscontinuousthroughout the plant, except at the casparianstrips of the endodermis in the roots. The apoplastic movement of water occurs exclusively through the intercellular spaces and the walls of the cells.
Q2. _______ infrastructure raise the stock of physical capital where as ______ infrastructure will raise the stock of human capital
Answer : Option A
Explaination / Solution:
Infrastructure contributes to economic development of a country both by increasing the productivity of the factors of production i.e. stock of physical capital and improving the quality of life of its people i.e. stock of human capital.
Q3. Electrical conductivity of semi conductors increases with increase in
Answer : Option A
Explaination / Solution:
Conductivity increases with temperature.
Q4. The correct order of stages of embryogeny in dicotyledonous embryo is
Answer : Option C
Explaination / Solution:
Embryogeny in dicotyledonous plants involves mitotic division of zygote to form proembryo, further division in proembryo results into globular embryo followed by heart-shaped embryo to mature embryo.
Q5. In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600 at an angle of 45.0 to the window surface. Each hailstone has a mass of 5.00 g and a speed of 8.00 m/s. If the collisions are elastic, what is the pressure on the window?
Answer : Option A
Explaination / Solution:
P=FAF=500×ΔpΔt=500×2mvcos45∘Δt=500×2×5×10−3×8×130×1.41A=0.6m2P=500×2×5×10−3×8×130×1.41×0.6=1.57Pa
Q6. The correct increasing order of atomic radii for the same element is ----?
Answer : Option D
Explaination / Solution:
For the same element ,
- Metallic radius of atoms are always greater than corresponding covalent radius.
- Metallic radius is always lesser than van der Waal's radius
Hence , the correct increasing order of atomic radii of an element is
Q7. A statement 933 females per 1000 males depict
Answer : Option C
Explaination / Solution:
Sex ration is the no of female available per thousands of male in a population. Sex ratio is decline due to female feticides alarmingly in some part of India.
Q8. The commercial name of polyacrylonitrile is ______________.
Answer : Option A
Explaination / Solution:
Commercial name of polyacrylonirile is Orlon.
Q9. Which one is not a element deficiency symptoms
Answer : Option D
Explaination / Solution:
Deficiency of elements in plants manifest as symptoms like chlorosis, necrosis, scorched leaf tips etc. smaller fruit size is not a deficiency symptoms.
Q10. Absorption of fats takes place through :
Answer : Option C
Explaination / Solution:
Lymph are the extracellular fluid that constitute the lymphatic system in human body. Absorption of fats takes place through lymphatic ducts. As fats cannot be carried through narrow capillaries.
