General Science - Online Test
Q1. Which of the following is a line source of air pollution?
Answer : Option B
Explaination / Solution:
A line source, as opposed to a point source, area source, or volume source, is a source of air, noise, water contamination or electromagnetic radiation that emanates from a linear (one-dimensional) geometry.
A smoking person while walking is line source of air pollution as the smoke released by smoking person spread in linear direction.
Q2.
Answer : Option D
Explaination / Solution:
Scientific notation is conveniently used to represent extremely large or even very small numerical values . It is an exponential notation in which any number can be represented in the form , N x 10n , where n is an exponent having positive or negative values and N can vary between 1 and 10 , but not 10 itself.
Q3. CH3 = CH2 CH3 + H – I → CH3 CH2 CH2I + CH3 CHICH3 (major) This reaction is
Answer : Option D
Explaination / Solution:
This is electrophilic addition reaction following Markovnikoffs rule.and negative part that is I will go to the carbon having lesser number of hydrogen.
Q4. Information and Communication Technology includes:
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. Acetylation of glucose yields
Answer : Option D
Explaination / Solution:
Acetyl group adds in glucose, giving acetylation reaction.
Q6. Signal in electronic communication refers to
Answer : Option B
Explaination / Solution:
In communication a signal implies a time varying electrical signal obtained by transforming original signal with the help of a suitable transducer.It is single valued function of time that conveys the information.
Q7. If a body is rotating about z axis with a speed ω and a point is at a distance of r in the x-y plane then the velocity of the point is
Answer : Option B
Explaination / Solution:
angular displacement of particle about z axis
differentiate with respect to time
Q8. Parrots have life span of about
Answer : Option C
Explaination / Solution:
The life span of parrot is about 140 years. It is much more than other common animals living in our surrounding. Even more than human being life span.
Q9. What is meant by investment
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Goods which were exported during colonial period
Answer : Option A
Explaination / Solution:
During colonial period India became an exporter of primary products such as raw silk, cotton, wool, sugar, indigo, jute etc. and an importer of finished consumer goods like cotton, silk and woollen clothes.
