General Science - Online Test
Q1. The moment of inertia of a planar body (lamina) about an axis perpendicular to its plane is.
Answer : Option C
Explaination / Solution:
According to perpendicular axis theorem "For a planar object, the moment of inertia about an axis perpendicular to the plane is the sum of the moments of inertia of two perpendicular axes through the same point in the plane of the object".
Q2. The lift on an aircraft wing arises because of
Answer : Option C
Explaination / Solution:
This is the application of Bernoulli's Theorem.
If air speeds up the pressure is lowered.Thus,a wing generates lift because the air goes faster over the top creating a region of low pressure,and thus lift.
Q3. In the case of compounds such as etc which of the following term is used as bond enthalpy.
Answer : Option D
Explaination / Solution:
For polyatomic molecules the term mean bond enthalpy is used for the enthalpy changes associated with chemical bonds.
Q4. Study of tissues is called
Answer : Option C
Explaination / Solution:
Study of organisms at tissues level is called histology.It includes study of tissue structure, origin, location and function.
Q5. Which among the following is photosynthetic as well as saprophytic?
Answer : Option C
Explaination / Solution:
Euglena is photosynthetic in presence of sunlight and is saprophytic in absence of sunlight.
Q6. When expenditure is more than income
Answer : Option D
Explaination / Solution:
When expenditure is more than income, the excess is known as deficit.
Q7. Nominal exchange rate is the price of
Answer : Option B
Explaination / Solution:
The nominal exchange rate is defined as the number of units of the domestic currency that can purchase a unit of a given foreign currency. A decrease in this variable is termed nominal appreciation of the currency.
Q8. The heights in cm of a group of first year biology students were recorded. The variance of these heights was subsequently calculated. The unit of measurement for this variance is:
Answer : Option B
Explaination / Solution:
As the variance is mean of sum of square deviation so unit will be in squared cm.
Q9. s-block elements comprise of
Answer : Option A
Explaination / Solution:
s-block contains two group of elements including alkali earth metal and alkaline earth metal.
Q10. Out of 65 percent of total energy consumption of commercial energy in India which of its source has largest share of consumption
Answer : Option D
Explaination / Solution:
India produces nearly 90 percent of its energy requirements, 65 percent of which are met by coal.
