A train is travelling on a curve of 500 mt radius at the rate of 66 k ph. Through what angle will it turn in 20 seconds ?

(A)

12^{o}

(B)

13^{o}

(C)

14^{o}

(D)

15^{o}

Question-3

A horse is tied to a post by a rope. If the horse moves along a circular path always keeping the rope tight and describes 88 metres when it has traced out 72^{o} at the centre. Then the length of the rope is :

(A)

35 m

(B)

60 m

(C)

70 m

(D)

80 m

Question-4

In which quadrant 45^{o} lies ?

(A)

I

(B)

II

(C)

III

(D)

IV

Question-5

In which quadrant 500^{o} lies ?

(A)

I

(B)

II

(C)

III

(D)

IV

Question-6

In which quadrant -120^{o} lies ?

(A)

I

(B)

II

(C)

III

(D)

IV

Question-7

Taking the sun’s distance as 1.4950 x 10^{8} km and the angle subtended by the sun at a point on earth as half a degree. Approximately, the diameter of the sun is

(A)

1.304637 x 10 ^{7} km

(B)

1.304637 x 10^{ 6} km

(C)

1.403367 x 10^{ 6} km

(D)

1.340637 x 10 ^{6} km

Question-8

The length of an arc of a circle of radius 10 cm which subtends an angle of 45^{o} at the centre is

(A)

^{5π}/_{4} cm

(B)

^{3π}/_{4 cm}

(C)

^{3π}/_{2} cm

(D)

^{5π}/_{2} cm

Question-9

If the arc of the same length in two circles subtend angles 75^{o} and 120^{o} at the centre, then the ratio of their radii is

(A)

5 : 8

(B)

4 : 5

(C)

8 : 5

(D)

3 : 5

Question-10

The circular measure of two angles of a triangle are ^{1}/_{2} radian and ^{1}/_{3}, radian. What is the number of degrees in the third angle ?

(A)

132^{o }16' 21 ^{9}/_{11}"

(B)

- 132^{o }16' 21 ^{9}/_{11}"

(C)

123^{o }16' 21"

(D)

None of these

Your Score 0/10

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