MCQOPTIONS
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MCQOPTIONS
This section includes 439 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Consider a 250mmx15mmx10mm steel bar which is free to expand is heated from 150C to 400C. what will be developed? |
| A. | Compressive stress |
| B. | Tensile stress |
| C. | Shear stress |
| D. | No stress |
| Answer» E. | |
| 2. |
The ratio between direct stress and volumetric strain is: |
| A. | Bulk modulus |
| B. | Poisson’s ratio |
| C. | Factor of safety |
| D. | Modulus of rigidity |
| Answer» B. Poisson’s ratio | |
| 3. |
The direction of bending stresses is along the |
| A. | Axial direction |
| B. | Lateral direction |
| C. | Inclined direction |
| D. | None |
| Answer» B. Lateral direction | |
| 4. |
In a composite beam bending, strain at the common interface will be |
| A. | Equal |
| B. | Unequal |
| C. | Zero |
| D. | None |
| Answer» B. Unequal | |
| 5. |
Moment of inertia of any section about an axis passing through its C.G is |
| A. | Maximum |
| B. | Minimum |
| C. | Depends upon the dimensions of the section |
| D. | Depends upon the shape of the section |
| Answer» C. Depends upon the dimensions of the section | |
| 6. |
What is the other name for a positive bending moment? |
| A. | Hogging |
| B. | Sagging |
| C. | Inflation |
| D. | Contra flexure |
| Answer» C. Inflation | |
| 7. |
What is the SF at support B? |
| A. | 5 kN |
| B. | 3 kN |
| C. | 2 kN |
| D. | 0 kN |
| Answer» E. | |
| 8. |
Brittle material beams need reinforcement on the |
| A. | Tension side |
| B. | Compression side |
| C. | Shear side |
| D. | None |
| Answer» B. Compression side | |
| 9. |
What is elasticity? |
| A. | ability to re-gain It's original size and shape |
| B. | ability to produce permanent deformation |
| C. | both |
| D. | none of above |
| Answer» B. ability to produce permanent deformation | |
| 10. |
The relation between slope and maximum bending moment is |
| A. | Directly proportion |
| B. | Inversely proportion |
| C. | Relative proportion |
| D. | Mutual incidence |
| Answer» C. Relative proportion | |
| 11. |
The diagram shown below, depicts bending diagram for |
| A. | cantilever beam with uniformly distributed load |
| B. | cantilever beam with uniformly distributed load only on half side of the beam |
| C. | simply supported beam with varying distributed load |
| D. | simply supported beam with uniformly distributed load |
| Answer» E. | |
| 12. |
In a cantilever subjected to a concentrated load (W) at the free end and having length =l, Maximum bending moment is |
| A. | Wl at the free end |
| B. | Wl at the fixed end |
| C. | Wl/2 at the fixed end |
| D. | Wl at the free end |
| Answer» C. Wl/2 at the fixed end | |
| 13. |
Pure bending of beam will have |
| A. | Tensile and shear stresses |
| B. | Compressive and shear stresses |
| C. | Tensile and compressive stresses |
| D. | None |
| Answer» D. None | |
| 14. |
Where do the maximum BM occurs for the below diagram. |
| A. | -54 kNm |
| B. | -92 kNm |
| C. | -105 kNm |
| D. | – 65 kNm |
| Answer» D. – 65 kNm | |
| 15. |
In a tensile test, near the elastic limit zone, the |
| A. | tensile strain increases more quickly |
| B. | tensile strain decreases more quickly |
| C. | tensile strain increases in proportion to the stress |
| D. | tensile strain decreases in proportion to the stress |
| Answer» B. tensile strain decreases more quickly | |
| 16. |
A 10 m long mild steel rail section is fixed at 300 K temperature. If temperature increases by 60 K, find stress in rail section if ends are not yielded. Coefficient of thermal expansion is 12×10-6/K. |
| A. | 72 N/mm2 |
| B. | 144 N/mm2 |
| C. | 120 N/mm2 |
| D. | 240 N/mm2 |
| Answer» C. 120 N/mm2 | |
| 17. |
Bending stresses in a beam vary |
| A. | Linearly |
| B. | Parabolically |
| C. | Cubic variation |
| D. | None |
| Answer» B. Parabolically | |
| 18. |
Why is a composite beam is converted into a beam of one material |
| A. | Bending equation is applicable to one material beam |
| B. | Bending equation is applicable to one alloy beam |
| C. | Bending equation is applicable to one metal beam |
| D. | None |
| Answer» B. Bending equation is applicable to one alloy beam | |
| 19. |
A bar 2 m long and 20 mm diameter is subjected to an axial pull of 125.6 KN. Due to this load, length increases by 4 mm and diameter reduce by 0.012 mm. Find Poison‟s ratio. |
| A. | 0.2 |
| B. | 0.25 |
| C. | 0.3 |
| D. | 0.35 |
| Answer» D. 0.35 | |
| 20. |
The percentage reduction in area of a cast iron specimen during tensile test would be of the order of |
| A. | more than 50% |
| B. | 25—50% |
| C. | 10—25% |
| D. | negligible. |
| Answer» E. | |
| 21. |
If the value of poisson‟s ratio is zero |
| A. | the lateral strain is high |
| B. | the material is perfectly elastic |
| C. | there is no linear strain in the material |
| D. | none of the above |
| Answer» D. none of the above | |
| 22. |
For any part of a beam subjected to uniformly distributed load, Shear forcediagram is |
| A. | Horizontal straight line |
| B. | Vertical straight line |
| C. | Line inclined to x-axis |
| D. | Parabola |
| Answer» D. Parabola | |
| 23. |
Determine the moment at fixed end. |
| A. | 40 kNm |
| B. | 50 kNm |
| C. | 60 kNm |
| D. | 80 kNm |
| Answer» E. | |
| 24. |
The ratio of the effective length of a column and minimum radius of gyration ofits cross-sectional area, is known |
| A. | buckling factor |
| B. | slenderness ratio |
| C. | crippling factor |
| D. | none of these |
| Answer» C. crippling factor | |
| 25. |
The slope of shear force line at any section of the beam is also called |
| A. | Bending moment at that section |
| B. | Rate of loading at that section |
| C. | Maximum Shear force |
| D. | Maximum bending moment |
| Answer» C. Maximum Shear force | |
| 26. |
The materials having same elastic properties in all directions are called |
| A. | ideal materials |
| B. | uniform materials |
| C. | isotropic materials |
| D. | elastic materials. |
| Answer» E. | |
| 27. |
Which type of load is applied in tensile testing? |
| A. | Axial load |
| B. | Shear load |
| C. | Transverse load |
| D. | Longitudinal load |
| Answer» D. Longitudinal load | |
| 28. |
For any part of a beam between two concentrated load, Bending momentdiagram is a |
| A. | Horizontal straight line |
| B. | Vertical straight line |
| C. | Line inclined to x-axis |
| D. | Parabola |
| Answer» D. Parabola | |
| 29. |
The beam having one end free and one end fixed is called as |
| A. | Cantilever beam |
| B. | Continuous beam |
| C. | Overhang beam |
| D. | Simply supported beam |
| Answer» B. Continuous beam | |
| 30. |
In bending moment diagram, if no load acts between two sections, then it isrepresented by |
| A. | horizontal line |
| B. | inclined line |
| C. | vertical line |
| D. | all of the above |
| Answer» C. vertical line | |
| 31. |
The direction of shear stress in a loaded beam is |
| A. | Horizontal |
| B. | Horizontal as well as vertical |
| C. | Vertical |
| D. | None |
| Answer» C. Vertical | |
| 32. |
In a S.S. beam, fibers below the neutral axis are in |
| A. | Tension |
| B. | Shear |
| C. | Compression |
| D. | None |
| Answer» B. Shear | |
| 33. |
What is the maximum shear force acting on the beam shown below. |
| A. | 125 N |
| B. | 200 N |
| C. | 4000 N |
| D. | 8000 N |
| Answer» C. 4000 N | |
| 34. |
What is the product of sectional modulus and allowable bending stress called as? |
| A. | Moment of inertia |
| B. | Moment of rigidity |
| C. | Moment of resistance |
| D. | Radius of gyration |
| Answer» D. Radius of gyration | |
| 35. |
The energy absorbed in a body, when it is strained within the elastic limits,is known as |
| A. | strain energy |
| B. | resilience |
| C. | proof resilience |
| D. | modulus of resilience |
| Answer» B. resilience | |
| 36. |
In a simply supported beam, bending moment at the end |
| A. | Is always zero if it does not carry couple at the end |
| B. | Is zero, if the beam has uniformly distributed load only |
| C. | Is zero if the beam has concentrated loads only |
| D. | May or may not be zero |
| Answer» B. Is zero, if the beam has uniformly distributed load only | |
| 37. |
The unit of Young's modulus is |
| A. | mm/mm |
| B. | kg/cm |
| C. | kg |
| D. | kg/cm2 |
| Answer» E. | |
| 38. |
The ultimate shear stress of a mild steel plate of 10 mm thickness is 350 N/mm2. Calculate the diameter of the hole that can be punched to it without exceeding a compressive stress of 700 N/mm2. |
| A. | 10 mm |
| B. | 20 mm |
| C. | 7 mm |
| D. | 35 mm |
| Answer» C. 7 mm | |
| 39. |
Which law is also called as the elasticity law? |
| A. | Bernoulli’s law |
| B. | Stress law |
| C. | Hooke’s law |
| D. | Poisson’s law |
| Answer» D. Poisson’s law | |
| 40. |
SI units of shear force is |
| A. | kN/m |
| B. | kN-m |
| C. | kN |
| D. | m/N |
| Answer» D. m/N | |
| 41. |
The moment of inertia of a triangular section of base 3 unit and height 2 unit, about an axis passing through its base is . |
| A. | 6 |
| B. | 9 |
| C. | 8 |
| D. | 2 |
| Answer» E. | |
| 42. |
steel bar 10 mm x 10 mm cross section is subjected to an axial tensile load of 20kN. If the length of bar is 1 m and E = 200 GPa, then elongation of the bar is: |
| A. | 1 mm |
| B. | 0.5 mm |
| C. | 0.75 mm |
| D. | 1.5 mm |
| Answer» D. 1.5 mm | |
| 43. |
In Fig. (a), slope of S.F.D. between B and C will be |
| A. | Zero |
| B. | 10 kN |
| C. | 15 kN |
| D. | 20 kN |
| Answer» B. 10 kN | |
| 44. |
The materials which have the same elastic properties in all directions are called __________ |
| A. | Isotropic |
| B. | Brittle |
| C. | Homogeneous |
| D. | Hard |
| Answer» B. Brittle | |
| 45. |
The axis about which moment of area is taken is known as . |
| A. | Axis of area |
| B. | Axis of moment |
| C. | Axis of reference |
| D. | Axis of rotation |
| Answer» D. Axis of rotation | |
| 46. |
Hogging is |
| A. | Negative bending moment |
| B. | Positive shear force |
| C. | Positive bending moment |
| D. | Negative shear force |
| Answer» B. Positive shear force | |
| 47. |
In a cantilever subjected to a combination of concentrated load, uniformly distributed load and uniformly varying load, Maximum bending moment is |
| A. | Where shear force=0 |
| B. | At the free end |
| C. | At the fixed end |
| D. | At the mid-point |
| Answer» D. At the mid-point | |
| 48. |
If the radius of wire stretched by a load is doubled, then its Young's modulus will be |
| A. | Doubled |
| B. | Halved |
| C. | become four times |
| D. | remain unaffected |
| Answer» E. | |
| 49. |
The intensity of stress which causes unit strain is called |
| A. | unit stress |
| B. | bulk modulus |
| C. | modulus of rigidity |
| D. | modulus of elasticity |
| Answer» D. modulus of elasticity | |
| 50. |
In a cantilever beam, fibers above the neutral axis are in |
| A. | Tension |
| B. | Shear |
| C. | Compression |
| D. | None |
| Answer» B. Shear | |