Theory Of Machine - Study Mode

[#246] When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a
Correct Answer

(A) Lower pair

[#247] The ratio of the number of teeth to the pitch circle diameter in millimeters, is called
Correct Answer

(B) Diametral pitch

[#248] Which of the following mechanism is an approximate straight line motion mechanism?
Correct Answer

(D) All of these

[#249] In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if $$frac{omega }{{omega { ext{n}}}}$$ is
Correct Answer

(B) Equal to 2

[#250] For an involute gear, the ratio of base circle radius and pitch circle radius is equal to
Correct Answer

(B) $$cos varphi $$