General Science - Online Test
Q1. Isomers of the compoundC4H9Br are
Answer : Option A
Explaination / Solution:
Q2. A billionth of a second is defined as
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. If a film of width L is stretched in the longitudinal direction a distance d by force F, surface tension is given by
Answer : Option D
Explaination / Solution:
Let L be the width of the film. Since the film has two surfaces, the total length along which the surface force acts on the slider is 2L. The surface tension S in the film is defined as the ratio of the surface force F to the length d (perpendicular to the force) along which the force acts
Hence, in the case, d = 2L
Q4. Why is paramagnetic ?
Answer : Option C
Explaination / Solution:
is a superoxide ( 3 electron species) so has one unpaired electron thus it is paramagnetic.
Q5. Fourier analysis of a periodic signal implies
Answer : Option A
Explaination / Solution:
The concept is that there are two descriptions of a signal according to Fourier. The time domain in form of time waveform and the frequency domain form in form of a combination of complex periodic signal with frequency as a variable instead of t. Hence Fourier analysis of a periodic signal implies periodic signal can be regarded as a superposition of sine wave signals
Q6. The fragrance of flowers is due to the presence of some steam volatile organic compounds called essential oils. These are generally insoluble in water at room temperature but are miscible with water vapour in vapour phase. A suitable method for the extraction of these oils from the flowers is:
Answer : Option C
Explaination / Solution:
A suitable method for the extraction of these oils from the flowers is Steam distillation
Q7. The important factor influencing the propensity to save in an economy is
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. Which of the following statement is true regarding the condition of Infrastructure
Answer : Option C
Explaination / Solution:
The relationship between the growth of British capitalism and the evolution of a dependent, colonial economy in India is greatly manifested in the development of Indian railways, roads, bridges and post and telegraph.
Q9. The metabolism of hormones in human body is an example of
Answer : Option C
Explaination / Solution:
It is pseudo first order reaction.
Q10. Pie chart is
Answer : Option C
Explaination / Solution:
A pie diagram is also a component diagram, but unlike a bar diagram, here it is a circle whose area is proportionally divided among the components. it represents. It is also called a pie chart. The circle is divided into as many parts as there are components by drawing straight lines from the centre to the circumference
