21. What is Bisphenol A (BPA)?
a) A medical test for detecting cancer
b) A test for testing the use of drugs to improve performance by athletes
c) A chemical used for the development of food – of food – packaging materials.
d) A special type alloy steel
22. Who among the following scientists shared the Nobel Prize in physics with his son?
a) William Henry Bragg
b) Albert Einstein
c) Max Planck
d) Enrico Fermi
23. Consider the following statement sabout robotic food
1) Probiotic food contains live bacteria which are considered beneficial to humans.
2) Probiotic food helps in maintaining gut flora.
Which of the statements given above is / are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
24. Which one of the following laser types is used in a laser printer?
a) Dye laser
b) Gas laser
c) Semiconductor laser
d) Excimer laser.
25. Which one of the following is the correct sequence in respect of the Roman numerals C, D, L and M?
a) C > D> L> M
b) M> L> D> C
c) M> D> C> L
d) L> C> D> M
26. Which of the following pairs is / are correctly matched?
1) Francis Collins: mapping human genome
2) Sergey bring: Google search engine
3) Jimmy Wales : Wikipedia
Select the correct answer using the codes given below
a) 1 and 2
b) 2 and 3
c) Only 3
d) All of these
27. Match the following
List I
|
List ii
|
a. Explanation of the photoelectric effect
|
1. JJ Thomson
|
b. Discovery of a comet
|
2. Robert millikan
|
c. Measurement of the electronic charge
|
3. Einstein
|
d. Thermoelectricity
|
4. Edmund Halley
5. See back
|
Codes
A B C D
a) 3 2 4 5
b) 5 1 4 3
c) 5 4 1 3
d) 3 4 2 5
28. Stem cell therapy (SCT) is not useful for the treatment of which one of the following aliments?
a) Kidney failure
b) Cancer
c) Brain injury
d) Vision impairment.
29. Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statement (s) is / are correct?
1) Coconut shells, groundnut shells and rice husk can be used in biomass gasification
2) The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.
3) The combustible gas generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.
Select the correct answer using the codes given below
a) Only 1
b) 2 and 3’
c) 1 and 3
d) All of these
30. Which oif the following pair / pairs is / are correctly matched?
Mineral composition
a) Amphibole: calcium –magnesium – iron silicate
b) Mica : magnesium – iron – aluminum silicate
c) Quartz :silicon dioxide
Select the correct answer using the codes given below
a) 1 and 2
b) 2 and 3
c) Only 3
d) All of these
ANSWERS
21. B
22. B
23. D
24. D
25. D
26. B
27. D
28. B
29. D
30. B