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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

540 UNIT 09 Algebra and Trigonometry

145)   

 If height = 100 m and angle of elevation is 45°, the distance from the object = ?

A.
B.
C.
D.
146)   

The angle of depression is measured:

A.
B.
C.
D.
147)   

A 15 m pole casts a 15 m shadow. The sun’s angle of elevation is:

A.
B.
C.
D.
148)   

 Which function is used to calculate height from base and angle?

A.
B.
C.
D.
149)   

Which trigonometric ratio is height/hypotenuse? 

A.
B.
C.
D.
150)   

 If angle of elevation = 30° and distance = 100 m, height = ? 

A.
B.
C.
D.
151)   

A man is standing 100 m away from a tower. The angle of elevation to the top of the tower is 45°. The height of the tower is:

A.
B.
C.
D.
152)   

 In a right-angled triangle, if the adjacent side = 4 and hypotenuse = 5, what is cos θ?

A.
B.
C.
D.
153)   

 A vertical wall and ground make an angle of 90°. A ladder is placed making an angle of 60° with the ground. If the ladder is 10 m long, the height it reaches on the wall is: 

A.
B.
C.
D.
154)   

 If sin θ = 0.6, then cos θ = ? 

A.
B.
C.
D.
155)   

 A pole of height 20 m casts a shadow of length 20√3 m. The angle of elevation of the sun is: 

A.
B.
C.
D.
156)   

Which of the following is the correct identity?

A.
B.
C.
D.
157)   

 An observer finds the angle of elevation to a tower to be 60°. If the distance from the tower is 50 m, what is the height of the tower? 

A.
B.
C.
D.
158)   

 What is the value of sin θ when θ = 0°?

A.
B.
C.
D.
159)   

 In triangle ABC, right-angled at B, if AB = 6 and BC = 8, then AC = ?

A.
B.
C.
D.
160)   

 The ratio of height to base in a 30° right triangle is:

A.
B.
C.
D.