Group 4 2019 September GT TNPSC Question Paper

Group 4 VAO Question Papers

Group 4 2019 September GT TNPSC Questions

31.
Which of the following fact is incorrect about monocotyledonous plants?
A.
Seeds has single cotyledon
B.
Leaves have parallel venation
C.
Fibrous root system present
D.
Flowers are pentamerous
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ANSWER :
D. Flowers are pentamerous
32.
Which of the following fact is incorrect about mitosis?
A.
It occurs only in body cells
B.
Mitosis has two divisions
C.
Maintenance of 2n chromosomes
D.
Two diploid cells are produced
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ANSWER :
B. Mitosis has two divisions
33.

Which of the following is wrong?

I. Na2CO3 is used in softening hard water

II. NaHCO3 is used for bleaching cotton and linen in textile industry

III. CaSO4 1/2 H2O is used for plastering fractured bones

IV. CaOCl2 is used in making of baking powder

A.

I and IV

B.

II and IV

C.

I and III

D.

III and IV

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ANSWER :

B. II and IV

34.
Focal length of a convex mirror whose radius of curvature 40 cm is
A.
20 cm
B.
40 cm
C.
80 cm
D.
infinity
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ANSWER :
A. 20 cm
35.
A man has to exert a forceof 10N at the edge of a door to push it open. How much force will the man have to exert if he pushes the centre of the door?
A.
10N
B.
5N
C.
15N
D.
20N
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ANSWER :
D. 20N
36.
The first battery was made by
A.
Joule
B.
George Simon ohm
C.
Alessandro Volta
D.
Newton
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ANSWER :
C. Alessandro Volta
37.
The average height of 12 students in a class was calculated as 152 cm. On verification it was found that one reading was wrongly recorded as 148 cm instead of 172 cm. Find the correct mean height.
A.
150 cm
B.
156 cm
C.
158 cm
D.
154 cm
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ANSWER :
D. 154 cm
38.
The difference of the squares of two positive numbers is 45. The square of the smaller number is four times the larger number. Find the numbers
A.
3 and 15
B.
9and 5
C.
3 and 16
D.
9 and 6
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ANSWER :
D. 9 and 6
39.
The radius of a cart wheel is 35 cm. How many revolution does it make in travelling a distance of 154 m
A.
70
B.
189
C.
119
D.
86
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ANSWER :
A. 70
40.
Saran is 6 times as old as his son Sankar. After 4 years, he will be 4 times as old as his son. What are their present ages?
A.
30, 5
B.
36, 6
C.
48, 8
D.
24, 4
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ANSWER :
B. 36, 6