Theory Of Machine MCQ Questions & Answers

The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where $$\omega $$ = Angular velocity of the link AB)

A) $$\omega \times {\text{AB}}$$ B) $$\omega \times {\left( {{\text{AB}}} \right)^2}$$ C) $${\omega ^2} \times {\text{AB}}$$ D) $${\left( {\omega \times {\text{AB}}} \right)^2}$$

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Answer & Solution

Answer: Option A

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Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

A) Slow speed B) Moderate speed C) Highs peed D) Any one of these

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Answer & Solution

Answer: Option C

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A machine mounted on a single coil spring has a period of free vibration of $${{\text{t}}_{\text{p}}}$$ . 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

A) $$\frac{{{{\text{t}}_{\text{p}}}}}{{16}}$$ B) $$\frac{{{{\text{t}}_{\text{p}}}}}{4}$$ C) $$4{{\text{t}}_{\text{p}}}$$ D) $$16{{\text{t}}_{\text{p}}}$$

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Answer & Solution

Answer: Option B

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Theory Of Machine MCQ Questions & Answers | Mechanical Engineering