MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Railway Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a formula used to calculate the length of a transition curve? |
| A. | L = 0.008C<sub>a</sub>xV<sub>m</sub> |
| B. | L = 0.008C<sub>d</sub>xV<sub>m</sub> |
| C. | L = 0.72C<sub>a</sub> |
| D. | L = 0.08C<sub>d</sub>xV<sub>m</sub>x S |
| Answer» E. | |
| 2. |
Which of the following is not correct in case of an S-shaped transition curve? |
| A. | Curvature assumes shape of quadratic parabola |
| B. | Shift required is twice |
| C. | Gradient is at centre and twice steeper |
| D. | Desirable when shift is restricted |
| Answer» C. Gradient is at centre and twice steeper | |
| 3. |
What is the correct formula of shift? |
| A. | S = L<sup>2</sup> / 24R |
| B. | S = L<sup>2</sup> / 2R |
| C. | S = L<sup>2</sup> / 4R |
| D. | S = L<sup>2</sup> / 24R<sup>2</sup> |
| Answer» B. S = L<sup>2</sup> / 2R | |
| 4. |
Which of the following is wrong about Transition curves? |
| A. | Degree of curvature is uniform throughout its length |
| B. | Radius of curvature decreases from a specified value to zero |
| C. | Gradual increase in superelevation from zero |
| D. | Should ensure a gradual increase or decrease in centrifugal forces |
| Answer» C. Gradual increase in superelevation from zero | |
| 5. |
On which portion of the track is a Transition curve provided? |
| A. | Between straight line and circular curve |
| B. | Before straight line |
| C. | On one side of circular curve |
| D. | In the middle of circular curve |
| Answer» B. Before straight line | |
| 6. |
Calculate the super elevation for a 2 curve for equilibrium speed of 80kmph. |
| A. | 146.3mm |
| B. | 214mm |
| C. | 100.8mm |
| D. | 78.5mm |
| Answer» D. 78.5mm | |
| 7. |
Which of the following is the correct revised formula for the calculation of speed at transitioned curves? |
| A. | V = 0.27((C<sub>a</sub> + C<sub>d</sub>) x R)<sup>1/2</sup> |
| B. | V = 0.347((C<sub>a</sub> + C<sub>d</sub>) x R)<sup>1/2</sup> |
| C. | V = 0.27((C<sub>a</sub> + C<sub>d</sub>) x R)<sup>1/4</sup> |
| D. | V = 0.27((C<sub>a</sub> + C<sub>d</sub>) x R)<sup>1/3</sup> |
| Answer» B. V = 0.347((C<sub>a</sub> + C<sub>d</sub>) x R)<sup>1/2</sup> | |
| 8. |
Which formula was used earlier for the calculation of Safe speed on curves? |
| A. | Martin s Formula |
| B. | Henry s equation |
| C. | Bolt s formula |
| D. | Anderson s formula |
| Answer» B. Henry s equation | |