MCQOPTIONS
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MCQOPTIONS
This section includes 50 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Solve the following equation for the two roots of : + 5 = 6 |
| A. | = 2, 3 |
| B. | = 1, 5 |
| C. | = 1, 6 |
| D. | = 0.742, 6.74 |
| Answer» D. = 0.742, 6.74 | |
| 2. |
Determine the angle : |
| A. | = 30° |
| B. | = 40° |
| C. | = 60° |
| D. | = 50° |
| Answer» E. | |
| 3. |
Determine the length of side if right angle is similar to right angle : |
| A. | = 5.42 |
| B. | = 3 |
| C. | = 5 |
| D. | = 4 |
| Answer» D. = 4 | |
| 4. |
Solve the following equation for the two roots of x: x2 + 5x = 6 |
| A. | x = 2, 3 |
| B. | x = 1, 5 |
| C. | x = 1, 6 |
| D. | x = 0.742, 6.74 |
| Answer» D. x = 0.742, 6.74 | |
| 5. |
Solve the following equation for the two roots of x: x2 16 = 0 |
| A. | x = 2i, 2i |
| B. | x = 4i, 4i |
| C. | x = 4, 4 |
| D. | x = 2, 2 |
| Answer» D. x = 2, 2 | |
| 6. |
Solve the following equation for x, y, and z:x y + z = 1 x + y + z = 1 x + 2y 2z = 5 |
| A. | x = 1, y = 1, z = 1 |
| B. | x = 5/3, y = 7/6, z = 1/2 |
| C. | x = 2/3, y = 2/3, z = 1 |
| D. | x = 1, y = 1, z = 1 |
| Answer» B. x = 5/3, y = 7/6, z = 1/2 | |
| 7. |
As per IS 875 (part 3): 2015, while considering the wind load acting in the direction normal to the individual structural element or cladding unit, the following is not considered |
| A. | Material density coefficient |
| B. | Internal and external pressure coefficients |
| C. | Surface area |
| D. | Design wind pressure |
| Answer» B. Internal and external pressure coefficients | |
| 8. |
In a situation where torsion is dominant, which one of the following is the desirable section? |
| A. | Angle section |
| B. | Channel section |
| C. | I-section |
| D. | Box type section |
| Answer» E. | |
| 9. |
In a truss girder of a bridge, a diagonal consists of mild steel flat 400 I.S.F. (thickness = 12 mm) and carries a pull of 80 tones. If the gross diameter of the rivet is 26 mm, the number of rivets required in the splice is |
| A. | 6 |
| B. | 7 |
| C. | 8 |
| D. | 9 |
| Answer» D. 9 | |
| 10. |
If 'b' is the width of the plate and ’d’ is the diameter of the rivet, then the efficiency of a riveted joint having diamond riveting is given by ______. |
| A. | (b-d)/b |
| B. | (b-d)/d |
| C. | (b-2d)/b |
| D. | (b-2d)/d |
| Answer» B. (b-d)/d | |
| 11. |
Due to the flexibility of the connected plates under tension, an additional force is induced in the bolts. This phenomenon is known as |
| A. | Unbuttoning |
| B. | Shear lag |
| C. | Bauschinger effect |
| D. | Prying action |
| Answer» E. | |
| 12. |
In an eccentric connection, when the axis of load is lying in the plane of bolted joint, the bolts are subjected to |
| A. | only shear stresses |
| B. | only tensile stresses |
| C. | both tensile and shear stresses |
| D. | tensile, shear and bending stresses |
| Answer» B. only tensile stresses | |
| 13. |
Permissible stress in axial tension amd compression should not be greater than: |
| A. | 0.6 fy |
| B. | 0.66 fy |
| C. | 0.75 fy |
| D. | 0.8 fy |
| Answer» B. 0.66 fy | |
| 14. |
For two plates of equal thickness, full strength of fillet weld can be ensured if its maximum size, for square edge, is limited to |
| A. | 1.5 mm less than the thickness |
| B. | 75% of the thickness |
| C. | 80% of the thickness |
| D. | Thickness of the plate |
| Answer» B. 75% of the thickness | |
| 15. |
As per the limit design of steel structures, the IS 800 code on steel design stipulates the partial safety factor for resistance of member to buckling as |
| A. | 1.1 |
| B. | 1.25 |
| C. | 1.5 |
| D. | 1 |
| E. | 0.8 |
| Answer» B. 1.25 | |
| 16. |
A reduction in the allowable stress in steel chimney construction is necessary if the temperature exceeds |
| A. | 75°C |
| B. | 100°C |
| C. | 200°C |
| D. | 300°C |
| Answer» C. 200°C | |
| 17. |
If ‘p’ is the basic wind pressure, for buildings with large opening design pressure on a wall is taken as: |
| A. | 0.5 p |
| B. | 0.7 p |
| C. | 1.0 p |
| D. | 1.2 p |
| Answer» C. 1.0 p | |
| 18. |
According to IS 800, the modulus of elasticity of steel, irrespective of its grade may be taken as |
| A. | 200 GPa |
| B. | 2000000 MPa |
| C. | 250 GPa |
| D. | 175 GPa |
| E. | 300 GPa |
| Answer» B. 2000000 MPa | |
| 19. |
Consider the following statements:1. When analysing by the Ultimate Load Method, the eccentrically loaded fastener group rotates about rivet group centroid.2. The rivet which is the farthest from the centre of gravity of the rivet group and may also be the nearest to the applied load line is the most ‘critical’ one.3. The deformation at each rivet is not proportional to its distance from the centre of rotation.Which of the above statements are correct? |
| A. | 1 and 3 only |
| B. | 2 and 3 only |
| C. | 1 and 2 only |
| D. | 1, 2 and 3 |
| Answer» D. 1, 2 and 3 | |
| 20. |
For simply supported beams, the maximum permitted deflection is (As pe IS 800:2007) |
| A. | 1/325 of the span |
| B. | 1/300 of the span |
| C. | 1/350 of the span |
| D. | None of these |
| Answer» B. 1/300 of the span | |
| 21. |
In steel design as per IS 800, following are included in the limit state of serviceability except |
| A. | Fire |
| B. | Corrosion |
| C. | Crack due to fatigue |
| D. | Vibrations in the structure |
| E. | Snow load |
| Answer» F. | |
| 22. |
In the case of an axially loaded column, machined for full bearing, the fastenings connecting the column to the base plates through gussets are to designed for |
| A. | 100% of the load on the column |
| B. | 50% of the load on the column |
| C. | 25% of the load on the column |
| D. | Respective erection conditions only |
| Answer» C. 25% of the load on the column | |
| 23. |
Gauge length of steel specimen as per codal provision is:Where d :larger dimension of the specimen; A0 cross sectional area of the specimen |
| A. | 5d |
| B. | \(\;5.65\sqrt {{A_0}} \) |
| C. | 6d |
| D. | 8d |
| Answer» C. 6d | |
| 24. |
As per IS 800:2007, the maximum effective slenderness ratio for a steel member always subjected to tension force is ______. |
| A. | 600 |
| B. | 400 |
| C. | 200 |
| D. | 800 |
| Answer» C. 200 | |
| 25. |
A steel beam is connected to a steel column by means of two angles placed on the two sides of the web of the beam. What is it called? |
| A. | Stiffened seat connection |
| B. | Unstiffened seat connection |
| C. | Framed connection |
| D. | Rigid connection |
| Answer» D. Rigid connection | |
| 26. |
As stated in IS 800, the limit state of strength design of steel includes all of the following except |
| A. | Brittle fracture |
| B. | Fatigue fracture |
| C. | Excessive deformation |
| D. | Repairable damage |
| E. | Rupture of a component in the structure |
| Answer» E. Rupture of a component in the structure | |
| 27. |
Assuming that there is no possibility of shear buckling in the web, the maximum reduction permitted by IS 800-2007 in the (low shear) design bending strength of a semi-compact steel section due to high shear is |
| A. | 50% |
| B. | governed by the area of the flange |
| C. | zero |
| D. | 25% |
| Answer» D. 25% | |
| 28. |
Most appropriate hot rolled Indian standard section for steel girder is: |
| A. | ISMB |
| B. | ISWB |
| C. | ISLB |
| D. | ISHB |
| Answer» B. ISWB | |
| 29. |
ISLC stands for: |
| A. | Indian Standard Lower Weight Channel |
| B. | Indian Standard Lower Channel |
| C. | Indian Standard Light Channel |
| D. | Indian Standard Lightweight Channel |
| Answer» E. | |
| 30. |
As per elastic theory of design, the factor of safety is the ratio of |
| A. | Working stress to stress at the limit of proportionality |
| B. | Yield stress to working stress |
| C. | Ultimate stress to working stress |
| D. | Ultimate load to load at yield |
| Answer» C. Ultimate stress to working stress | |
| 31. |
Of the following four sections, which section has the maximum Plastic Modulus? |
| A. | ISMB250 |
| B. | ISHB250 |
| C. | ISWB250 |
| D. | ISLB250 |
| Answer» C. ISWB250 | |
| 32. |
For a standard 45° fillet, the ratio of size of fillet to throat thickness is ______. |
| A. | 1 : 1 |
| B. | 1 : √2 |
| C. | √2 : 1 |
| D. | 2 : 1 |
| Answer» D. 2 : 1 | |
| 33. |
According to IS 800, the stress range for a category of detail, depending upon the number of cycles it is required to withstand during design life is called as |
| A. | Cut-off strength |
| B. | Yield strength |
| C. | Fatigue strength |
| D. | Plastic strength |
| E. | Fire strength |
| Answer» D. Plastic strength | |
| 34. |
For inspection of welded joint, the method in which iron fillings are spread over the weld and it is then subjected to an electric current is known as: |
| A. | Radiography method |
| B. | Dye penetration method |
| C. | Magnetic particle method |
| D. | Ultrasonic method |
| Answer» D. Ultrasonic method | |
| 35. |
As per IS 800-1984, what will be the permissible axial tension for mild steel power driven rivets? |
| A. | 100 Mpa |
| B. | 250 Mpa |
| C. | 415 Mpa |
| D. | 1000 Mpa |
| Answer» B. 250 Mpa | |
| 36. |
Peak Gust wind speed as per IS 875 (Part 3) - 2015, for design loads is defined as: |
| A. | Wind speed associated with maximum wave length |
| B. | Wind speed associated with maximum frequency and velocity |
| C. | Wind speed associated with maximum amplitude |
| D. | Wind speed associated with maximum amplitude and wave length |
| Answer» D. Wind speed associated with maximum amplitude and wave length | |
| 37. |
A square of side a is placed such that its diagonal is horizontal. The shape factor of the square will be |
| A. | 3.2 |
| B. | 2.0 |
| C. | 1.5 |
| D. | 1.0 |
| Answer» C. 1.5 | |
| 38. |
As per IS 875 (Part 2), the uniformly distributed load (UDL), in kN / sq.m for balconies is taken as |
| A. | 2.0 |
| B. | 1.5 |
| C. | 3.0 |
| D. | 1.4 |
| E. | 2.7 |
| Answer» D. 1.4 | |
| 39. |
IS 800: 2007 is based on |
| A. | Elastic design method |
| B. | Ultimate load method |
| C. | Working stress method |
| D. | Limit state method |
| Answer» E. | |
| 40. |
A wall carries an axial load, 12 kN/m and also an eccentric load on 27 kN/m at 72 mm from the central axis of the wall. The equivalent eccentricity is nearly. |
| A. | 65 mm |
| B. | 60 mm |
| C. | 55 mm |
| D. | 50 mm |
| Answer» E. | |
| 41. |
Buckling of the compression flange of a girder, without transverse stiffeners, can be avoided if (with standard notations) |
| A. | \(\frac{d}{{{t}_{w}}}\le 345\epsilon _{f}^{2}\) |
| B. | \(\frac{d}{{{t}_{w}}}\le 270\epsilon _{f}^{2}\) |
| C. | \(\frac{d}{{{t}_{w}}}\le 345{{\epsilon }_{w}}\) |
| D. | \(\frac{d}{{{t}_{w}}}\le 250{{\epsilon }_{w}}\) |
| Answer» B. \(\frac{d}{{{t}_{w}}}\le 270\epsilon _{f}^{2}\) | |
| 42. |
As per IS:800, the maximum deflection in a beam should not exceed |
| A. | L/180 |
| B. | L/250 |
| C. | L/325 |
| D. | L/360 |
| Answer» D. L/360 | |
| 43. |
As per IS specifications, which of the following physical properties of structural steel is taken irrespective of its grade? |
| A. | Unit mass of steel |
| B. | Modulus of elasticity |
| C. | Poisson’s ratio |
| D. | All the options are correct |
| Answer» E. | |
| 44. |
Solve the following equation for the two roots of x:   — x2 + 5x = — 6 |
| A. | x = 2,   3 |
| B. | x = –1,   –5 |
| C. | x = –1,   6 |
| D. | x = –0.742,   6.74 |
| Answer» D. x = ‚Äì0.742,¬†¬†¬†6.74 | |
| 45. |
Determine the length of side AB if right angle ABC is similar to right angle A'B'C': |
| A. | AB = 5.42 |
| B. | AB = 3 |
| C. | AB = 5 |
| D. | AB = 4 |
| Answer» D. AB = 4 | |
| 46. |
Determine the angles and and the length of side AB of the triangle. Note that there are two possible answers to this question and we have provided only one of them as an answer. |
| A. | = 46.7°,  = 93.3° d = 9.22 |
| B. | = 50.0°,  = 90.0° d = 9.14 |
| C. | = 40.0°,  = 100.0° d = 9.22 |
| D. | = 48.6°,  = 91.4°, d = 9.33 |
| Answer» E. | |
| 47. |
Solve the following equation for x, y, and z:x – y + z = –1   –x + y + z = –1   x + 2y – 2z = 5 |
| A. | x = 1,      y = 1,      z = –1 |
| B. | x = 5/3,      y = 7/6,      z = –1/2 |
| C. | x = –2/3,      y = –2/3,      z = –1 |
| D. | x = –1,      y = 1,      z = 1 |
| Answer» B. x = 5/3,¬†¬†¬†¬†¬†¬†y = 7/6,¬†¬†¬†¬†¬†¬†z = ‚Äì1/2 | |
| 48. |
Determine the angle : |
| A. | = 30° |
| B. | = 40° |
| C. | = 60° |
| D. | = 50° |
| Answer» E. | |
| 49. |
Using the basic trigonomic functions, determine the length of side AB of the right triangle. |
| A. | h = 7.07 |
| B. | h = 10 |
| C. | h = 5 |
| D. | h = 14.14 |
| Answer» B. h = 10 | |
| 50. |
Solve the following equation for the two roots of x:   x2 — 16 = 0 |
| A. | x = 2i,   –2i |
| B. | x = 4i,   –4i |
| C. | x = 4,   –4 |
| D. | x = 2,   –2 |
| Answer» D. x = 2,¬†¬†¬†‚Äì2 | |