MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The relation between the pitch of the chain ( p) and pitch circle diameter of the sprocket (d) is given by |
| A. | p = d sin (600/T) |
| B. | p = d sin (900/T) |
| C. | p = d sin (1200/T) |
| D. | is given bya) p = d sin (600/T)b) p = d sin (900/T)c) p = d sin (1200/T)d) p = d sin (1800/T) |
| Answer» E. | |
| 2. |
When the belt is stationary, it is subjected to some tension, known as initial tension. The value of this tension is equal to the |
| A. | tension in the tight side of the belt |
| B. | tension in the slack side of the belt |
| C. | sum of the tensions in the tight side and slack side of the belt |
| D. | average tension of the tight side and slack side of the belt |
| Answer» E. | |
| 3. |
The velocity of the belt for maximum power is |
| A. | √T/3m |
| B. | √T/4m |
| C. | √T/5m |
| D. | √T/6m |
| Answer» B. √T/4m | |
| 4. |
Two pulleys of diameters d1 and d2 and at distance x apart are connected by means of an open belt drive. The length of the belt is |
| A. | π /2 (d1 + d2) 2x + (d1 + d2)2/4x |
| B. | π /2 (d1 – d2) 2x + (d1 – d2)2/4x |
| C. | π /2 (d1 + d2) 2x + (d1 – d2)2/4x |
| D. | π /2 (d1 – d2) 2x + (d1 + d2)2/4x |
| Answer» D. π /2 (d1 – d2) 2x + (d1 + d2)2/4x | |
| 5. |
WHEN_THE_BELT_IS_STATIONARY,_IT_IS_SUBJECTED_TO_SOME_TENSION,_KNOWN_AS_INITIAL_TENSION._THE_VALUE_OF_THIS_TENSION_IS_EQUAL_TO_THE?$ |
| A. | tension in the tight side of the belt |
| B. | tension in the slack side of the belt |
| C. | sum of the tensions in the tight side and slack side of the belt |
| D. | average tension of the tight side and slack side of the belt |
| Answer» E. | |
| 6. |
The_relation_between_the_pitch_of_the_chain_(_p)_and_pitch_circle_diameter_of_the_sprocket_(d)_is_given_by$ |
| A. | p = d sin (60<sup>0</sup>/T) |
| B. | p = d sin (90<sup>0</sup>/T) |
| C. | p = d sin (120<sup>0</sup>/T) |
| D. | p = d sin (180<sup>0</sup>/T) |
| Answer» E. | |
| 7. |
The centrifugal tension in belt? |
| A. | increases power transmitted |
| B. | decreases power transmitted |
| C. | have no effect on the power transmitted |
| D. | increases power transmitted upto a certain speed and then decreases |
| Answer» D. increases power transmitted upto a certain speed and then decreases | |
| 8. |
The power transmitted by a belt is maximum when the maximum tension in the belt (T) is equal to |
| A. | T<sub>C</sub> |
| B. | 2T<sub>C</sub> |
| C. | 3T<sub>C</sub> |
| D. | 4T<sub>C</sub> |
| Answer» D. 4T<sub>C</sub> | |
| 9. |
When two pulleys of different diameters are connected by means of an open belt drive, then the angle of contact taken into consideration should be of the |
| A. | larger pulley |
| B. | smaller pulley |
| C. | average of two pulleys |
| D. | none of the mentioned |
| Answer» C. average of two pulleys | |
| 10. |
Due to slip of the belt, the velocity ratio of the belt drive |
| A. | decreases |
| B. | increases |
| C. | does not change |
| D. | none of the mentioned |
| Answer» B. increases | |
| 11. |
Two pulleys of diameters d1 and d2 and at distance x apart are connected by means of an open belt drive. The length of the belt is |
| A. | π /2 (d<sub>1</sub> + d<sub>2</sub>) 2x + (d<sub>1</sub> + d<sub>2</sub>)<sup>2</sup>/4x |
| B. | π /2 (d<sub>1</sub> – d<sub>2</sub>) 2x + (d<sub>1</sub> – d<sub>2</sub>)<sup>2</sup>/4x |
| C. | π /2 (d<sub>1</sub> + d<sub>2</sub>) 2x + (d<sub>1</sub> – d<sub>2</sub>)<sup>2</sup>/4x |
| D. | π /2 (d<sub>1</sub> – d<sub>2</sub>) 2x + (d<sub>1</sub> + d<sub>2</sub>)<sup>2</sup>/4x |
| Answer» D. ‚âà√¨‚àö√ë /2 (d<sub>1</sub> ‚Äö√Ñ√∂‚àö√ë‚àö¬® d<sub>2</sub>) 2x + (d<sub>1</sub> + d<sub>2</sub>)<sup>2</sup>/4x | |
| 12. |
The velocity ratio of two pulleys connected by an open belt or crossed belt is |
| A. | directly proportional to their diameters |
| B. | inversely proportional to their diameters |
| C. | directly proportional to the square of their diameters |
| D. | inversely proportional to the square of their diameters |
| Answer» C. directly proportional to the square of their diameters | |