MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Dynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For a V-twin engine, which of the following means can be used to balance the primary forces? |
| A. | Revolving balance mass |
| B. | Rotating balance mass |
| C. | Reciprocating balance mass |
| D. | By the means of secondary forces |
| Answer» B. Rotating balance mass | |
| 2. |
From the following data of a 60 degree V-twin engine, determine the minimum value for primary forces in newtons:Reciprocating mass per cylinder = 1.5 KgStroke length = 10 cmLength of connecting rod = 25 cmEngine speed = 2500 rpm |
| A. | 7711 |
| B. | 4546 |
| C. | 2570 |
| D. | 8764 |
| Answer» D. 8764 | |
| 3. |
From the following data of a 60 degree V-twin engine, determine the maximum value for primary forces in newtons:Reciprocating mass per cylinder = 1.5 KgStroke length = 10 cmLength of connecting rod = 25 cmEngine speed = 2500 rpm |
| A. | 7711 |
| B. | 4546 |
| C. | 2508 |
| D. | 8764 |
| Answer» B. 4546 | |
| 4. |
From the following data of a 60 degree V-twin engine, determine the maximum value for secondary forces in newtons:Reciprocating mass per cylinder = 1.5 KgStroke length = 10 cmLength of connecting rod = 25 cmEngine speed = 2500 rpm |
| A. | 890.3 |
| B. | 760.4 |
| C. | 580.3 |
| D. | 970.6 |
| Answer» B. 760.4 | |
| 5. |
A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 34.5 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in kN? |
| A. | 2.238 |
| B. | 2.508 |
| C. | 2.754 |
| D. | 2.908 |
| Answer» C. 2.754 | |
| 6. |
A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 23 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in Newtons? |
| A. | 7172 |
| B. | 1672 |
| C. | 1122 |
| D. | 1272 |
| Answer» C. 1122 | |
| 7. |
If the mass of the reciprocating parts is doubled, then the primary force is halved. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 11.5 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in Newtons? |
| A. | 736 |
| B. | 836 |
| C. | 936 |
| D. | 636 |
| Answer» C. 936 | |