TNPSC Question Paper-2015 Questions and answers

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Exams

This page contains the questions asked in previous year TNPSC Group 1 preliminary exam. You can practice these questions as practice test in this link.

51). The length of a chain used as the boundary of a semicircular park is 72 m. What is the area of the park?

A). 77 \( m^2 \)

B). 91 \( m^2 \)

C). 126 \( m^2 \)

D). 308 \( m^2 \)

View Answer

Correct Answer: 308 \( m^2 \)

The area or the boundary of semi circular park

=> \( \pi r + 2 r = 72 m \)

=> \( r\left(\pi + 2 \right) = 72\)

=> r(3.14+ 2) = 72

=> 5.14 r = 72

= > \( \large r = \frac{72}{5.14} = 14m \)

Area of the semi circular park =\( \large\frac{\pi r^{2}}{2} \)

= > \( \large\frac{22/7 \times 14 \times 14}{2} = \frac{615.44}{2} \)

=307.7 = 308\( m^{2}\)

52). Find the least number which when divided by 5, 6, 7 and 8 leaving a remainder 3, but when divided by 9 leaves no remainder.

A). 1677

B). 1683

C). 2523

D). 3363

View Answer

53). Find the next number in the following series. 4, 6, 9, 13 1/2

A). 20.25

B). 22.75

C). 19

D). 17.5

View Answer

54). Consider the following statements:
Assertion (A): Scholars distinguished a culture midway between palaeolithic and Neolithic called Mesolithic.
Reason (R) : The chief characteristics of mesolithic were the stone implements used were extremely small and made up of Chalcedony and silicate instead of quartzite.
Select your answer according to the coding scheme given below:

A). Both (A)and (R) are false

B). Both (A)and (R) are true but (R) is not explanation for (A)

C). Both (A)and (R) are true and (R) is the correct explanation for (A)

D). (A)is true but (R)is false

View Answer

55). Match the following:

A)Na and K	i. Obtained by electrolysis of fused salt
B)Cu and Ag	ii. Occur only in native state
C)Au and Pt	iii. Occur both native and combined state
D)Na and Ca	iv. Reducing agent in metallurgy
E) Al and Mg	v. Occur only in combined state.

Below codes are given in A B C D order:

A). (a)-(v) (b) -(iii) (c)-(ii) (d) -(i) (e)-(iv)

B). (a)-(iv) (b)-(i) (c)-(ii) (d)-(iii)(e)-(v)

C). (a)-(ii) (b) -(iii) (c)-(v) (d)-(iv)(e)-(i)

D). (a) -(iii) (b)-(ii) (c)-(i) (d)-(v)(e)-(iv)

View Answer

56). Which of the following is/are wrong?
I. \( Mg_2C_3 \) on hydrolysis gives acetylene
II. \( Be_2C \) on hydrolysis gives methane
III. \( Al_4C_3 \) on hydrolysis gives allylene
Choose the correct answer:

A). I and II

B). II and III

C). I and III

D). I,II and III

View Answer

57). For the Daniel cell E0 = 1.10 V. The value of equilibrium constant (K) for the reaction (at 298 K) is
\( Zn_\left( s\right) + Cu_\left( aq \right)^{2+}\rightarrow Zu_\left( aq \right)^{2+} + Cu_\left( s \right) \)

A). 4.36 X \( 10 ^ 39\)

B). 2.79 X \( 10 ^41\)

C). 6.53 X \( 10 ^ 35\)

D). 1.55 X \( 10 ^ 37\)

View Answer

58). Agricultural unemployment may be classified into
I. Seasonal unemployment
II. Disguised unemployment
III.Chronic unemployment
Which is the correct answer?

A). I and II only

B). II and III only

C). I and Ill only

D). I, II and III

View Answer

59). Fill up the blanks:
National population policy adopted in 2000 with a view to encourage ______ and aim at stabilizing the population by ______

A). Two child norm, 2020

B). One child norm, 2030

C). Two children norm, 2046

D). One child norm, 2050

View Answer

60).

List I	List II
A)Tax revenue	1. Provident funds
B)Capital receipts	2. Taxes on income and expenditure
C)Non-plan expenditure	3. Sales tax
D)Value added tax	4. Interest payments

Below codes are given in A B C D order

A). 4 3 2 1

B). l 3 4 2

C). 2 l 4 3

D). 2 3 4 l

View Answer

3	4	5	6	7	8	9

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