MCQOPTIONS
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MCQOPTIONS
This section includes 509 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
Approximate horse power that can be transmitted by a shaft 60 mm diameter at 180 r.p.m. with permissible shear stress of 850 kg/cm2, would be |
| A. | 35-50 |
| B. | 85-95 |
| C. | 30-35 |
| D. | 50-65 |
| E. | 65-85 |
| Answer» C. 30-35 | |
| 502. |
The type of cam used for low and moderate speed engines is generally |
| A. | Involute |
| B. | Harmonic |
| C. | Flat |
| D. | Cylindrical |
| E. | Tangent |
| Answer» C. Flat | |
| 503. |
In door shutters, the type of the spring used is |
| A. | spiral spring |
| B. | helical torsion spring |
| C. | Cast steel |
| D. | close coiled helical spring |
| E. | conical helical spring |
| Answer» C. Cast steel | |
| 504. |
The included angle of American National threads is |
| A. | 55? |
| B. | 50? |
| C. | 29? |
| D. | 47 |
| E. | 60? |
| Answer» F. | |
| 505. |
For minimum noise use which type of gears are used |
| A. | Bevel gears |
| B. | Hypoid gears |
| C. | Helical gears |
| D. | Cast steel |
| E. | Spur gears |
| Answer» D. Cast steel | |
| 506. |
Miter gears are |
| A. | Spur gears with same number of teeth |
| B. | Gears with different profiles |
| C. | Helical gears with same number of teeth |
| D. | Stepped spur gears |
| E. | Right angled bevel gears with same number of teeth |
| Answer» F. | |
| 507. |
Which material is expected to be the hardest? |
| A. | Brass |
| B. | Copper-zinc |
| C. | Molybdenum |
| D. | Silver |
| E. | Aluminium |
| Answer» D. Silver | |
| 508. |
Stub tooth |
| A. | Has a profile which is involutic at the base and cycloidal at the top |
| B. | Has a profile which is cycloidal at the base and involutic at the top |
| C. | Is provided on racks only |
| D. | Has a profile shorter than the standard tooth |
| E. | Has a profile longer than the standard tooth |
| Answer» E. Has a profile longer than the standard tooth | |
| 509. |
A foundation bolt with a circular end is secured to the floor by means of a steel cotter. If the pull on the bolt is 14000 kg, the diameter of the bolt should be |
| A. | Double shear |
| B. | 50 mm |
| C. | 10 mm |
| D. | 30 mm |
| E. | 20 mm |
| Answer» B. 50 mm | |