MCQ for LAB - Theory of Machine Lab MCQ PDF

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Theory of Machine Lab MCQ...

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Each carry equal marks (select most suitable answer) √ mark the answer column. S. N 1.

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Answer (b (c (d ) ) )

In “MOTORIZED GYROSCOPE” following formula is used : Tthe = I ω ωp Where , ωp is (a) Angular velocity of disc (b) Angular position of disc (c) Weight on pan, (d) Angular velocity of precession of yoke What is the end condition for “WHIRLING OF SHAFT” as seen in Laboratory (a) Both end Fixed (b) Both end Open (c) One end Fixed (d) None of the above In “STATIC & DYNAMIC BALANCING” How do we measure distance between masses along axis (a) Between two faces on same side (b) Between two faces on opposite sides (c) Between centre of masses (d) All of the above In “GOVERNOR” Experiment which governor was seen most sensitive (a) Watt governor (b) Proell governor (c) Porter governor (d) Hartnell governor δ C Damping ratio, = C = is seen in which experiment C √ 4 π 2+ δ (a) Forced Vibration (b) Compound pendulum (c) Torsional vibration with water base (d) Simple pendulum The relation of time period for a simple pendulum is given by: T = 2π × L g (a) True (b) False 91.2 g Relation between speed and rise N= is valid for: H

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(a) Watt governor (c) Porter governor 8.

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(b) Proell governor (d) Hartnell governor

PRECESSION motion is: (a)Rotatory motion (b)Linear motion (c)General Plane Motion (d)None of the above In “WHIRLING OF SHAFT” primarily we try to observe : (a) Wave form of Vibration (b) Whirling noise (c) Resonance vibration (d) All of the above What is required for Static and Dynamic Balancing A. The forces in the reference plane must balance, i.e. the resultant force must be zero. B. The couple about the reference plane must balance, i.e. the resultant couple must be zero.

(a) Only A (c) A and B

(b) Only B (d) Neither A nor B

11. Write Procedure of an experiment done by you under “THEORY OF MACHINE” (Use back of this page)

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