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QUESTIONS

Engineering Materials
Manganese is added in low carbon steel to

All of these
Make the steel ductile and of good bending qualities
Raise the yield point
Make the steel tougher and harder

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Theory of Machine
Shaft revolving in a bearing is the following type of pair

Higher pair
Cylindrical pair
Lower pair
Spherical pair

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Indian Politics
The provisions of financial emergency have been laid down in:

Article 351
Article 377
Article 360
Article 378

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Theory of Machine
The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where ω = Angular velocity of the link AB)

(ω × AB)²
ω × (AB)²
ω × AB
ω² × AB

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Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

4 tp
tp /16
16 tp
tp /4

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