MCQOPTIONS
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MCQOPTIONS
This section includes 140 Mcqs, each offering curated multiple-choice questions to sharpen your ENGINEERING SERVICES EXAMINATION (ESE) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
5 SELECTION OF ROLLING CONTACT BEARINGS |
| A. | thrust |
| B. | radial |
| C. | longitudinal |
| D. | transversal |
| Answer» B. radial | |
| 2. |
A single transverse weld is preferred over double transverse fillet weld. |
| A. | true |
| B. | false |
| Answer» C. | |
| 3. |
In hypoid bevel gears, shafts may continue past each other. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
There are common types of bevel gears. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 5. |
Which of the following cannot take radial load? |
| A. | cylindrical roller bearing |
| B. | taper roller bearing |
| C. | thrust ball bearing |
| D. | none of the listed |
| Answer» D. none of the listed | |
| 6. |
Which of the following isn’t the property of taper roller? |
| A. | high rigidity |
| B. | easy dismantling |
| C. | take low radial and heavy loads |
| D. | all are the properties of tapper roller |
| Answer» D. all are the properties of tapper roller | |
| 7. |
In angular contact bearings, bearings are required to take thrust load in both directions. |
| A. | 1 |
| B. | 4 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 8. |
Deep groove ball bearings creates a lot of noise. |
| A. | yes |
| B. | they create very less noise |
| C. | depends on the application |
| D. | no reference frame for comparison is mentioned |
| Answer» C. depends on the application | |
| 9. |
A bearing supports the load acting along the axis of the shaft. |
| A. | thrust |
| B. | radial |
| C. | longitudinal |
| D. | transversal |
| Answer» B. radial | |
| 10. |
In a four stroke cycle engine camshaft revolves at the crank speed. |
| A. | two times |
| B. | half |
| C. | four times |
| D. | three times |
| Answer» C. four times | |
| 11. |
If E = Mean kinetic energy of the flywheel, CS = Coefficient of fluctuation of speed and Δ E = Maximum fluctuation of energy, then |
| A. | Δe = e / cs |
| B. | Δe = e2 × cs |
| C. | topic 4.2 flywheels considering stresses in rims and arms for engines and punching machines |
| Answer» C. topic 4.2 flywheels considering stresses in rims and arms for engines and punching machines | |
| 12. |
The coefficient of fluctuation of speed is the of maximum fluctuation of speed and the mean speed. |
| A. | product |
| B. | ratio |
| C. | sum |
| D. | difference |
| Answer» C. sum | |
| 13. |
If the spring is compressed completely and the adjacent coils touch each other,the the length of spring is called as? |
| A. | solid length |
| B. | compressed length |
| C. | free length |
| D. | none of the mentioned |
| Answer» B. compressed length | |
| 14. |
Among punching and drilling, punching is safer. |
| A. | true |
| B. | false |
| Answer» C. | |
| 15. |
Which of the following isn’t a main part of rivet? |
| A. | head |
| B. | shank |
| C. | point |
| D. | thread |
| Answer» E. | |
| 16. |
Knuckle Joint can’t be used to connect two intersecting rods. |
| A. | yes |
| B. | no, it can’t be used |
| C. | it can be used with some modificatios |
| D. | it is expensive and hence isn’t used |
| Answer» C. it can be used with some modificatios | |
| 17. |
In joining steel plate and asbestos, welding is preferred over riveting. |
| A. | true |
| B. | false |
| Answer» C. | |
| 18. |
Pitch of coil is defined as axial distance in compressed state of the coil. |
| A. | yes |
| B. | it is measured in uncompressed state |
| C. | it is same in uncompressed or compressed state |
| D. | none of the listed |
| Answer» C. it is same in uncompressed or compressed state | |
| 19. |
Hypoid gears are based on surfaces that are paraboloids of revolution. |
| A. | true |
| B. | false |
| Answer» C. | |
| 20. |
Filler material is used in electric resistance welding. |
| A. | yes |
| B. | no filler material used |
| C. | depends on the type of welding |
| D. | none of the listed |
| Answer» C. depends on the type of welding | |
| 21. |
Refer to fig 1.Two plates are fastened by means of two bolts. The yield strength of bolt is 400N/mm² and factor of safety is 4. Determine the permissible shear stress in the bolts. |
| A. | 100n/mm² |
| B. | 50n/mm² |
| C. | 25n/mm² |
| D. | 75n/mm² |
| Answer» C. 25n/mm² | |
| 22. |
Cylinder roller creates lesser noise than deep groove ball bearing. |
| A. | true |
| B. | false |
| Answer» C. | |
| 23. |
Refer to fig 1. Two plates are fastened by means of two bolts. The yield strength of bolt is 400N/mm² and factor of safety is 4. Determine the size of the bolts. |
| A. | 8mm |
| B. | 9mm |
| C. | 10mm |
| D. | 11mm |
| Answer» B. 9mm | |
| 24. |
Transverse fillet weld can be designed using the same equations as of parallel fillet weld. |
| A. | true |
| B. | false |
| Answer» C. | |
| 25. |
Cereals improve flowability and lower collapsibility. |
| A. | true |
| B. | false |
| Answer» C. | |
| 26. |
How much should fuel oil be added to increase the moulding ability of sand? |
| A. | 0.01% – 0.1% |
| B. | 0.02% – 0.2% |
| C. | 0.03% – 0.3% |
| D. | 0.04% – 0.4% |
| Answer» B. 0.02% – 0.2% | |
| 27. |
What is the expression of the bending equation? |
| A. | m/i = σ/y = e/r |
| B. | m/r = σ/y = e/i |
| C. | m/y = σ/r = e/i |
| D. | m/i = σ/r = e/y |
| Answer» B. m/r = σ/y = e/i | |
| 28. |
Flexible shafts have rigidity in bending moment. |
| A. | high |
| B. | low |
| C. | very high |
| D. | extremely low |
| Answer» C. very high | |
| 29. |
The helix angle is very small about 2⁰. The spring is open coiled spring. |
| A. | yes |
| B. | it is closed coiled spring |
| C. | that small angle isn’t possible |
| D. | none of the listed |
| Answer» C. that small angle isn’t possible | |
| 30. |
If yielding strength=400N/mm², the find the permissible shear stress according to ASME standards. |
| A. | 72 n/mm² |
| B. | 76 n/mm² |
| C. | 268 n/mm² |
| D. | 422 n/mm² |
| Answer» B. 76 n/mm² | |
| 31. |
Riveting is not recommended for aluminium alloys. |
| A. | true |
| B. | false |
| Answer» C. | |
| 32. |
If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods. Given: Max allowable compressive stress=25N/mm², thickness of each eye of fork=25mm. |
| A. | 40mm |
| B. | 50mm |
| C. | 60mm |
| D. | 70mm |
| Answer» B. 50mm | |
| 33. |
Flexible shafts have rigidity in torsion making them flexible. |
| A. | low |
| B. | high |
| C. | very high |
| D. | infinitely small |
| Answer» C. very high | |
| 34. |
Hard peening is |
| A. | hammering the weld across the length while the joint is hot |
| B. | hammering the weld along the length while the joint is hot |
| C. | hammering the weld along the length while the joint is cold |
| D. | hammering the weld across the length while the joint is cold |
| Answer» C. hammering the weld along the length while the joint is cold | |
| 35. |
Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6) |
| A. | 31mm |
| B. | 35mm |
| C. | 36mm |
| D. | 40mm |
| Answer» B. 35mm | |
| 36. |
The diameter of the hub of the flywheel is usually taken |
| A. | equal to the diameter of the shaft |
| B. | twice the diameter of the shaft |
| C. | three times the diameter of the shaft |
| D. | four times the diameter of the shaft |
| Answer» C. three times the diameter of the shaft | |
| 37. |
8’CW from the vertical. Hence net shear force = √ [5000cos36.8+1250]²+ [5000sin36.8]². |
| A. | 10.74mm |
| B. | 9.23mm c) 11.54mm |
| C. | 8.68mm |
| Answer» B. 9.23mm c) 11.54mm | |
| 38. |
If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load. |
| A. | 97.3 |
| B. | 95.8 |
| C. | 100.6 |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 39. |
The fundamental equation for viscous flow is given by ∆pbhᵌ/6µl where symbols have their usual meanings. |
| A. | 6 is to be replaced by 3 |
| B. | 6 is to be replaced by 12 |
| C. | 6 is to be replaced by 9 |
| D. | 6 is to be replaced by 15 |
| Answer» C. 6 is to be replaced by 9 | |
| 40. |
In order to find the maximum bending moment on the arms, it is assumed as a |
| A. | simply supported beam carrying a uniformly distributed load over the arm |
| B. | fixed at both ends |
| C. | cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 41. |
Which of the following are functions of bearings? |
| A. | ensure free rotation of shaft with minimum friction |
| B. | holding shaft in a correct position |
| C. | transmit the force of the shaft to the frame |
| D. | all of the listed |
| Answer» E. | |
| 42. |
Angular contact bearing can take thrust as well as radial loads. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 43. |
Splines are keys. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 44. |
Which type of welding is generally used in automobile sector? |
| A. | electric arc welding |
| B. | electric resistance welding |
| C. | gas welding |
| D. | forge welding |
| Answer» C. gas welding | |
| 45. |
Which of the following cannot tolerate misalignment? |
| A. | angular contact bearing |
| B. | cylinder roller bearing |
| C. | thrust ball bearings |
| D. | all of the listed |
| Answer» E. | |
| 46. |
Design factor for most aircraft structures is 2. |
| A. | true |
| B. | false |
| Answer» C. | |
| 47. |
In gear boxes and small size motors, rolling contact bearings are used. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 48. |
Which bolt is under maximum shear stress? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | all are under equivalent shear stress |
| Answer» D. all are under equivalent shear stress | |
| 49. |
Thickness of plate is required more in welding than in riveting. |
| A. | true |
| B. | false |
| Answer» C. | |
| 50. |
A single transverse weld is preferred over |
| A. | true |
| B. | false |
| Answer» C. | |