General Science - Online Test
Q1. Disinvestment is a
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. The _______ is often the preferred measure of central tendency if the data are severely skewed.
Answer : Option E
Explaination / Solution:
The median is usually preferred to other measures of central tendency when your data set is skewed.
Q3. Which of the following is false regarding formal sector
Answer : Option C
Explaination / Solution:
Sector which encompasses all jobs with normal hours and regular wages, and are recognized as income sources on which income taxes must be paid can be termed as formal sector.
Q4. Neglecting air resistance, in which of the following cases the net force acting on a stone of mass 0.1 kg is not acting downward?
Answer : Option C
Explaination / Solution:
Weight of the stone is balanced by the reaction of the floor. The only acceleration is provided by the horizontal motion of the train.
a = 1ms-2
force in horizontal direction
F = ma = 0.1 x 1 = 0.1N
Q5. The Hofmann elimination proceeds via a(n) __________ pathway.
Answer : Option D
Explaination / Solution:
Hoffmann elimination follows mechanism.
Q6. Model in physics refers
Answer : Option D
Explaination / Solution:
A model is a representation of something that is often too difficult (or impossible) to display directly. While a model's design is justified using experimental information, it is only accurate under limited situations. An example is the commonly used "planetary model" of the atom, in which electrons are pictured as orbiting the nucleus, analogous to the way planets orbit the Sun. We cannot observe electron orbits directly, but the mental image helps explain the observations we can make, such as the emission of light from hot gases. Physicists use models for a variety of purposes.
Q7.
Match the following :
Animal
a) Sphyrna
b) Pediculus
c) Asterias
d) Metridium
type of skeleton
i) exoskeleton
ii) hydrostatic skeleton
iii) cartilaginous skeleton
iv) endoskeleton
Answer : Option A
Explaination / Solution:
Different kinds of skeleton system is found in different organisms. Sphyma contain cartilaginous skeleton. Pediculus contain exoskeleton. Asterias contain endoskeleton and Metridium contains hydrostatic skeleton.
Q8. Transgenic mice are being developed for use in testing the safety of
Answer : Option C
Explaination / Solution:
Transgenic mice are being developed for use in testing the safety of vaccines before they are used on humans. Transgenic mice are being used to test the safety of the polio vaccine. If successful and found to be reliable, they could replace the use of monkeys to test the safety of batches of the vaccine.
Q9. Assign oxidation number to P in
Answer : Option D
Explaination / Solution:
Oxidation state of P in NaH2PO4 is +5.
Let the oxidation number of P be x. As we already know oxidation number of other atoms so we can calculate that of P too.
Na = +1
H= +1 (+2 for hydrogen molecule)
O = -2
Now calculating oxidation number of P:-
1 +2 + x +(-8) = 0
On solving we get x= +5.
Q10. Which one out of following is not a consequence of overpopulation
Answer : Option C
Explaination / Solution:
The consequence of overpopulation includes unemployment, price rise, and energy crisis. Hygienic condition is not directly affected by overpopulation.
