TNPSC
Exam-GROUP – II - Subject wise analysed questions and Answers- Science-Part-1
TNPSC
GROUP – II
NOVEMBER
– 2012
(SCIENCE)
1. Consider the following statements :
I.
kwashior is a protein deficiency disease
II.
Kwashiorkor is an iron deficiency disease
III. Kwashiorkor is a nutritional
deficiency disease
Now select the correct answer.
A) I
and II are correct
B) II
and III are correct
C) I
and II are correct
D) All
three are correct
Ans : (C)
2. The younger leaves of a tomato plant in your garden shows
interveinal
chlorosis. Select what supplement you will give?
A) Sulphur B) Iron
C) Copper D) Molybdenum
Ans : (B)
3. The soil zone is considered to be a great biological factory
because :
A) a
great varieties of organic compounds are generated in the soil layers
B) necessary
nutrients are made available to plants from the soil layers
C) soil
layer holds water in storage which is used by plants and animals
D) all
of the above
Ans : (D)
4. Ketone bodies appear in the urine due to diabetes mellitus
during
A) Ketosis
B) Albuminuria
C) Creatinuria
D) Myoglobinuria
Ans : (A)
5. Consider the following:
I. CO
burns with a blue flame
II. CO
is good reducing agent and reduces alkali metal oxides
III. Co
is toxic because it forms a complex with Hemoglobin in the blood and this complexes is
300 times more stable than oxy - hemoglobin
IV. Co
form complex with Ni at 50°C and decomposition resulting
complex given pune Ni
Which of the statements given above is/are
correct?
A) All
are correct
B) It
is not correct while I, III and Iv are correct
C) I,
II and III only correct
D) II,
III and IV are correct
Ans : (B)
6. The source of solar energy is
A) fission B) radiation
C) fusion D) conduction
Ans : (C)
7. Consider the following statements:
Assertion (A) : Insulin lowers the
blood glucose concentration
Reason (R) : Lowered blood glucose
concentration stimulates Secretion
of glucagons
Now select your answers according to the coding scheme
given below:
B) Both
(A) and (R) are true and (R) is not the correct explanation of (A)
C) (A)
is ture, but (R) is false
D) (A)
is false, but (R) is true
Ans : (A)
8. The best known example of waggle dance was exhibited by
Honey bees which was first observed
by
A) Girlomi
and Bielert 1987
B) Dixon
1998
C) Eugave
Marais in 1920
D) Kari
Von Frisch in 1940
Ans
: (D)
9. Fill in the blank :
Bacteria differ from viruses in being sensitive to
_______
A) Sugars B) Proteins
C) Tetracyline D) Facts and oils
Ans
: (C)
10. The PH of a soft drink is 3 and that of milk is 7.
How many times greater is the
concentration of H3O+ is soft drink than in milks?
A) 4
times B) 40 times
C) 1,000
time D) 10,000 times
Ans
: (D)
11. Nicotine upon oxidation with chromic acid gives
A) Pyridine
-3-carboxylic acid
B) Pyridine
-2-carboxylic acid
C) Pyridine
-4-carboxylic acid
D) Pyridine
-2,3- discarboxylic acid
Ans
: (A)
12. Natural rubber is
A) Polymer
of ethylene
B) Polymer
of butadience
C) Polymer
of acetylene
D) Polymer
of 2-methyl butadiene
Ans
: (D)
13. Mr. X wants to establish a broadband wireless net connection
for his employers spread over a radius
of 30 kms. The wireless standard he needs to impart to them is
A) Bluetooth
connectivity
B) Infra-red
connectivity
C) Wimax
connectivity
D) Wifi
connectivity
Ans
: (C)
14. Which of the following is correct regarding steel?
A) Iron
with > 0.5% carbon
B) Iron
with < 0.25% carbon
C) Iron
with 0.25 - 2% carbon
D) Iron
with 2-4.5% carbon
Ans
: (C)
15. The Smallest difference in radiation detected by the satellite
sensor is called
A) Spectral
resolution
B) Spectral
resolution
C) Radiometric resolution
D) Temporal
resolution
Ans
: (A)
16. Fujita scale refers to
A) the scale to assess the severity of
flood
B) the
scale to assess the earthquake severity
C) the
scale to assess the relative severity and damage of tornado
D) The
scale to assess the cyclonic severity
Ans
: (C)
17. Which I wrongly matched?
A) Zinc
- Enzymes
B) Iron
- Hemoglobin
C) Magnesium
- Dry cell
D) Beryllium
- X-ray tubes
Ans
: (C)
18. In the digestion of carbohydrates, the following sugars are
converted to their simple forms
A) Starch
®
Maltose + Isomaltose
B) Maltose
®
Glucose
C) Lactose
®
Maltose
D) Sucrose
®
Glucose + Fructose
Which one is/are correct?
A) I
alone B) II and III
C) II,
III and IV D) I, II and IV
Ans
: (D)
19. Match List I with List II and select your answer using the
codes given below:
List I List II
a) Smallest
flower 1. Dischidia rafflesia
b) Biggest
flower 2. Canna
c) Irregular
flower 3. Phyllanthus
d) Monochlamydous
flower 4. Wolfia
a b c d
A) 2 1 3 4
B) 1 2 3 4
C) 3 4 1 2
D) 4 1 2 3
Ans : (D)
20. A is the assertion and R is the reason. Examine these two
statements carefully and select the answer
using the codes given below:
A : We are able to hear the
sound behind the walls or obstacles
R : When
the wavelength of a wave is comparable or less than that of an obstacle, diffraction happens.
C) : A
is true; but R is false
D) : A
is false; but R is true
Ans : (A)
21. Match the following List I and
List II and select the correct answer
List I List II
a) Cyano
bacteria 1. Rhodospirillum
b) Ammonifying
becteria 2. Thiobacillus
c) Photosynthetic
bacteria 3. Bacillus
d) Denitrifying
bacteria 4. Nostoc
a b c d
A) 1 2 4 3
B) 1 2 3 4
C) 4 3 2 1
D) 4 3 1 2
Ans : (C)
22. Which one of the following is a polar orbiting satellite?
A) INSAT B) GSAT
C) METSAT D) Resource Sat
Ans : (D)
23. Identify the odd one from the group of materials given below:
Glass, ebonite, copper, rubber
A)
ebonite B) copper C) glass D) rubber
Ans : (B)
TNPSC
GROUP – II 2012
Science
24. ‘Argentine’ is a chief ore mineral of
A)
Silver B) gold
C) mica D) Limestone
Ans : (A)
25. ‘Quantum Confinement’ is associated with
A) Telecommunication
B) Wireless technology
C) Photonics
D) Nanotechnology
Ans : (D)
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