MCQOPTIONS
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MCQOPTIONS
This section includes 188 Mcqs, each offering curated multiple-choice questions to sharpen your Strength Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A rectangular channel has cross sectional area of 50 m2. If the channel section is to be most economical calculate the depth. Take B = 10m. |
| A. | 10 m |
| B. | 5 m |
| C. | 8 m |
| D. | 12 m |
| Answer» C. 8 m | |
| 2. |
In manning’s formula, V = 1/n×m2/3×i1/2. N stands for ___________ |
| A. | Coefficient of viscosity |
| B. | Coefficient of rugosity |
| C. | Coefficient of runoff |
| D. | Coefficient of friction |
| Answer» C. Coefficient of runoff | |
| 3. |
Biological Oxygen Demand (BOD) of safe drinking water must be ________ |
| A. | 10 |
| B. | 15 |
| C. | 5 |
| D. | 0 |
| Answer» E. | |
| 4. |
Which of the following is used as retarding admixture? |
| A. | Calcium chloride |
| B. | Fluosilicates |
| C. | Treitanlamine |
| D. | Starch |
| Answer» E. | |
| 5. |
Which of the following cement is used for marine structures? |
| A. | Rapid hardening cement |
| B. | Hydrophobic cement |
| C. | High Alumina cement |
| D. | Super sulphated cement |
| Answer» D. Super sulphated cement | |
| 6. |
IS: 455 is associated with ____________ |
| A. | Portland slag cement |
| B. | Ordinary Portland cement |
| C. | High alumina cement |
| D. | Super sulphated cement |
| Answer» B. Ordinary Portland cement | |
| 7. |
The angle of repose is zero for ______________ |
| A. | Water |
| B. | Masonry |
| C. | Soil |
| D. | Cement |
| Answer» B. Masonry | |
| 8. |
What is the desirable limit of calcium in drinking water? |
| A. | 45 mg/l |
| B. | 60 mg/l |
| C. | 75 mg/l |
| D. | 90 mg/l |
| Answer» D. 90 mg/l | |
| 9. |
The most common coagulant is _____________ |
| A. | Magnesium sulphate |
| B. | Alum |
| C. | Chlorine |
| D. | Salt |
| Answer» C. Chlorine | |
| 10. |
Trusses are adopted for ___________ span. |
| A. | Medium |
| B. | Short |
| C. | Very large |
| D. | Large |
| Answer» D. Large | |
| 11. |
The top line of roof truss is called as ___________ |
| A. | Eves |
| B. | Main tie |
| C. | Pitch |
| D. | Ridge line |
| Answer» E. | |
| 12. |
If the members connected don’t lie in the same plane, then structures are called __________ |
| A. | Space truss |
| B. | Plane truss |
| C. | Main truss |
| D. | Foot truss |
| Answer» B. Plane truss | |
| 13. |
__________ is a framed structure composed of members. |
| A. | Purlin |
| B. | Gussets |
| C. | Ridge tops |
| D. | Truss |
| Answer» E. | |
| 14. |
About ____________ % volume of concrete is occupied by aggregates. |
| A. | 60% |
| B. | 50% |
| C. | 75% |
| D. | 30% |
| Answer» D. 30% | |
| 15. |
King post trusses are used for spans ______ |
| A. | 5 to 8 m |
| B. | 6 to 9 m |
| C. | 4 to 6 m |
| D. | 6 to 8 m |
| Answer» C. 4 to 6 m | |
| 16. |
________ shape of the frame offers great rigidity. |
| A. | Trapezoidal |
| B. | Triangular |
| C. | Rectangular |
| D. | Square |
| Answer» C. Rectangular | |
| 17. |
The turbidity in water is expressed in terms of ________ |
| A. | pH value |
| B. | Silica scale |
| C. | Ppm |
| D. | Platinum cobalt scale |
| Answer» C. Ppm | |
| 18. |
Distribution bars are also known as __________ |
| A. | Transverse bars |
| B. | Radial bars |
| C. | Flexural bars |
| D. | Regant bars |
| Answer» B. Radial bars | |
| 19. |
Taste and odour are expressed in terms of ______ |
| A. | GTU |
| B. | Threshold numbers |
| C. | Silica scale |
| D. | Ppm |
| Answer» C. Silica scale | |
| 20. |
A pipe sunk into the ground to draw the underground water is known as ___________ |
| A. | An open well |
| B. | A tube well |
| C. | An artesian well |
| D. | An infiltration well |
| Answer» C. An artesian well | |
| 21. |
_______ torque produces the maximum shear stress due to combined bending. |
| A. | Seasonal |
| B. | Equipment |
| C. | Composite |
| D. | Series |
| Answer» C. Composite | |
| 22. |
Rate of demand is also known as __________ |
| A. | Domestic demand |
| B. | Per capita demand |
| C. | Commercial demand |
| D. | Livestock demand |
| Answer» C. Commercial demand | |
| 23. |
Expand MPN? |
| A. | Maximum proximity number |
| B. | Most probable number |
| C. | Membrane plate notation |
| D. | Maximum probable notation |
| Answer» C. Membrane plate notation | |
| 24. |
_______ is as the maximum energy that can be absorbed within the proportionality limit. |
| A. | Proof resilience |
| B. | Modulus of resilience |
| C. | Impact resilience |
| D. | Resilience |
| Answer» B. Modulus of resilience | |
| 25. |
What is the desirable limit for sulphates in drinking water? |
| A. | 180 ng/L |
| B. | 230 mg/L |
| C. | 150 mg/L |
| D. | 340 mg/L |
| Answer» D. 340 mg/L | |
| 26. |
If fluoride concentration in drinking water increases to more than ______ ppm, it causes fluorosis. |
| A. | 2.5 |
| B. | 2 |
| C. | 1.5 |
| D. | 3 |
| Answer» D. 3 | |
| 27. |
E – coli was formerly known as _________ |
| A. | F. Coli |
| B. | B. Coli |
| C. | G. Coli |
| D. | R. Coli |
| Answer» C. G. Coli | |
| 28. |
Draw down is also known as __________ |
| A. | Frictional head |
| B. | Depression head |
| C. | Tensile head |
| D. | Positive head |
| Answer» C. Tensile head | |
| 29. |
The maximum permissible total solid content in water for domestic purposes should not exceed. |
| A. | 350 ppm |
| B. | 600 ppm |
| C. | 500 ppm |
| D. | 1000 ppm |
| Answer» D. 1000 ppm | |
| 30. |
__________ is a measure of its water yielding capacity. |
| A. | Specific capacity |
| B. | Specific weight |
| C. | Specific yield |
| D. | Yield capacity |
| Answer» D. Yield capacity | |
| 31. |
________ is the gravity conduits used while crossing a hill or lock. |
| A. | Flumes |
| B. | Aqueducts |
| C. | Canals |
| D. | Tunnels |
| Answer» E. | |
| 32. |
The presence of calcium and magnesium chloride in water causes ___________ |
| A. | Hardness |
| B. | Bad taste |
| C. | Turbidity |
| D. | Softening |
| Answer» E. | |
| 33. |
The breaking stress is ____________ the ultimate stress. |
| A. | Equal to |
| B. | Less than |
| C. | Greater than |
| D. | As same as |
| Answer» C. Greater than | |
| 34. |
The odour of water can be determined by _________ |
| A. | Jackson turbidometer |
| B. | Osmoscope |
| C. | Thermometer |
| D. | Sonoscope |
| Answer» C. Thermometer | |
| 35. |
Membrane filter technique is used for testing? |
| A. | Copper |
| B. | E -coli |
| C. | Bacteria |
| D. | Boron |
| Answer» C. Bacteria | |
| 36. |
What is the flow of velocity in the pressure conduit? |
| A. | 0.5 to 0.6 m/s |
| B. | 0.6 to 0.7 m/s |
| C. | 0.6 to 0.8 m/s |
| D. | 0.8 to 1 m/s |
| Answer» D. 0.8 to 1 m/s | |
| 37. |
________ head should be higher than working head in a hydraulic test. |
| A. | Pressure |
| B. | Water |
| C. | Working |
| D. | Gauge |
| Answer» D. Gauge | |
| 38. |
NTU is measurement unit of _______ |
| A. | Turbidity |
| B. | Chlorines |
| C. | Hardness |
| D. | Colour |
| Answer» B. Chlorines | |
| 39. |
Pressure conduits are also known as _______ |
| A. | Pipe conduits |
| B. | Gravity conduits |
| C. | Artesian conduits |
| D. | Surface conduits |
| Answer» B. Gravity conduits | |
| 40. |
According to Freeman, estimate of fire demand can be made from the formula? |
| A. | Q = 3175 P |
| B. | Q = 2125 P |
| C. | Q = 1136.5 (P/5 +10) |
| D. | Q = 2715 (P/5 + 10) |
| Answer» D. Q = 2715 (P/5 + 10) | |
| 41. |
Fire hydrants are located in a main at a distance of ______________ |
| A. | 200 to 250 m |
| B. | 150 to 200 m |
| C. | 100 to 150 m |
| D. | 50 to 100 m |
| Answer» D. 50 to 100 m | |
| 42. |
Calculate the hoop stress at the bottom of penstock, if a steel penstock of 1 m and 10 mm thick is subjected to 100m head of water. Take w = 9.81 kN/m³. |
| A. | 49 N/mm² |
| B. | 47 N/mm² |
| C. | 45 N/mm² |
| D. | 43 N/mm² |
| Answer» B. 47 N/mm² | |
| 43. |
The type of joint provided to release thermal stresses is called _______ |
| A. | Socket and spigot joint |
| B. | Expansion joint |
| C. | Flash joint |
| D. | Simplex joint |
| Answer» C. Flash joint | |
| 44. |
_______ pipes are not easily biodegradable. |
| A. | RCC |
| B. | PSC |
| C. | PVC |
| D. | G I |
| Answer» B. PSC | |
| 45. |
Saprotrophs are also known as _________ |
| A. | Detritus Feeders |
| B. | Decomposers |
| C. | Tertiary consumers |
| D. | Omnivores |
| Answer» B. Decomposers | |
| 46. |
What is a design period for storage dam? |
| A. | 45 years |
| B. | 50 years |
| C. | 60 years |
| D. | 90 years |
| Answer» C. 60 years | |
| 47. |
Energy does not recycle. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 48. |
In _________ springs, that trench acts as a storage reservoir. |
| A. | Surface |
| B. | Erotic |
| C. | Artesian |
| D. | Gravity |
| Answer» E. | |
| 49. |
Calculate thickness of metal, if the pressure inside the water main is 0.6 N/mm². The diameter of water main is 600 mm. Take hoop stress = 25 N/mm². |
| A. | 7.20 mm |
| B. | 9.45 mm |
| C. | 10.58 mm |
| D. | 12.24 mm |
| Answer» B. 9.45 mm | |
| 50. |
Pressure conduits with steel pipes varies diameter _______ |
| A. | 2500 mm |
| B. | 3000 mm |
| C. | 3500 mm |
| D. | 4000 mm |
| Answer» C. 3500 mm | |