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Strength of Materials Multiple Choice Questions | MCQs | Quiz

Strength of Materials Interview Questions and Answers
Pratice Strength of Materials questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   Strain
•   Elasticity
•   Hooke's Law
•   Stress & Strain Curve
•   Strain Properties
•   Strain Constants - 1
•   Strain Constants - 2
•   Elastic Constants - 1
•   Elastic Constants - 2
•   Normal & Shear Stress
•   Bending Stress
•   Tensile Stress
•   Compressive Stress
•   Thermal Stress
•   Stress Applications
•   Varying Sections Bars
•   Superposition Principle
•   Composite Sections Bars-1
•   Composite Sections Bars-2
•   Strain Energy Definition
•   Resilience
•   Sudden Loading
•   Gradual Loading
•   Impact Loading
•   Center of Gravity
•   Section Gravity Center
•   Moment of Inertia
•   Section Moment of Inertia
•   Mass Moment of Inertia
•   Beams & Loads Types
•   Shear & Bending Moment
•   Supports Types
•   Maximum Shear Force
•   Maximum Bending Moment
•   Bending Moment Diagram
•   Bending Equation
•   Pure Bending Stress
•   Section Modulus
•   Section Strength
•   Unsymmetrical Sections
•   Composite Beams
•   Shear Stress Basics
•   Shear Stress Distribution
•   Maximum Shear Stress - 1
•   Maximum Shear Stress - 2
•   Combined Stress
•   ↓ Bending Stress ↓
•   Eccentric Loading
•   Eccentric in Both Directions
•   Section Kernel
•   Dams
•   Rectangular Dam
•   Rectangular Dam Analysis
•   ↓ Trapezoidal Dam ↓
•   Vertical Side Phase
•   Inclined Side Phase
•   Dams Stability Analysis
•   Slope
•   Deflection
•   Cantilever Deflection
•   Simply Support Deflection
•   Beams Analyse Slope
•   Analyse Propped Cantilever
•   Propped Deflection
•   Analyse Fixed Beam
•   Fixed Beam Deflection
•   Indeterminate Beam
•   Beam Deflection
•   Torque Definition
•   Torsion Equation
•   Twisting Moment
•   Inertia Polar Moment
•   Torsional Rigidity
•   Combined Bending
•   Power Shaft
•   Composite Shaft
•   Frames Stresses - 1
•   Frames Stresses - 2
•   ↓ Thin Cylinders ↓
•   Thin Cylinders
•   Internal Pressure
•   Hoop Stress
•   Longitudinal Stress
•   Stress - Cylinder Surface
•   Thin Cylinder - Strain
•   Maximum Shear Stress
•   ↓ Thin Spherical Shells ↓
•   Shells Under Stress
•   Shells Under Strain
•   Thick Cylinder Shell
•   Trusses - 1
•   Trusses - 2
•   Column Definition
•   ↓ Euler's Theory ↓
•   At Critical Load
•   At Eccentrically Loaded
•   Columns Design
•   ↓ Rankine's Theory ↓
•   Column Rankine's Theory
•   Buckling & Crushing Load
•   Slenderness Ratio
•   Core Cross Section
•   Shear Failure
•   Rivet Joint
•   Rivet Lap Joint
•   Strain Energy

Best Reference Books

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Strength of Materials Questions and Answers – Shear Stress and Twisting Moment

Posted on December 15, 2017 by Manish

This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on “Shear Stress and Twisting Moment”.

1. The intensity of shear stress at a section is______ to the distance of the section from the axis of the shaft.
a) Inversely proportional
b) Directly proportional
c) Equal
d) Parallel
View Answer

Answer: b
Explanation: The intensity of shear stress at a section is directly proportional to the distance of the section from axis of the shaft. The shear stress at a distance from the centre of the shaft is given by fs/R × r.

2. The shear stress is ____ at the axis of shaft.
a) Minimum
b) Maximum
c) Zero
d) Uniform
View Answer

Answer: c
Explanation: The shear stress is zero at the axis of the shaft and the shear stress is linearly increasing to the maximum value at the surface of the shaft.

3. The shear stress at outer surface of hollow circular section is _________
a) Zero
b) Maximum
c) Minimum
d) Can’t determined
View Answer

Answer: b
Explanation: The shear stress in a hollow circular section varies from maximum at the outer surface to a minimum (but not zero) in the inner face. The minimum value should be greater than zero.

4. The hollow shaft will transmit greater _______ then the solid shaft of the same weight.
a) Bending moment
b) Shear stress
c) Torque
d) Sectional Modulus
View Answer

Answer: c
Explanation: For the same maximum shear stress, the average shear stress in a hollow shaft is greater than that in a solid shaft of same area. Hence the hollow shaft will transmit greater torque than the solid shaft of the same weight.

5. The process of measurement of discharge and water level of a river is called _________
a) Meandering
b) River coursing
c) River gauging
d) Scouring
View Answer

Answer: c
Explanation: The process of measurement of discharge and water level of a river is known as river gauge. It helps in determining the characteristics of flow different times during the year.

6. The quantity of losses in the river can be measured with an aid of ________
a) Runoff coefficient
b) Hydrograph
c) River Coursing
d) River gauging
View Answer

Answer: d
Explanation: By measuring river discharge for number of years, it is possible to know the available and dependable supply. The river gauging helps in measuring discharge in the river and quantity of losses can also be known.

7. The site for the river gauging station should not be liable to ____________
a) Silting
b) Coursing
c) Meandering
d) Runoff
View Answer

Answer: a
Explanation: River gauging station site should be selected in such a way that the site should be stable and there should not be any choice of scouring and silting. At gauge site, the river section should be at right angles to the flow of the river.

8. Stage discharge relationship method is also known as ________ method.
a) Velocity Volume
b) Velocity Area
c) Distance Area
d) Displacement Momentum
View Answer

Answer: b
Explanation: Stage discharge relationship method is a direct method of computing a discharge in a stream by measuring velocity and area of flow. The place where such measurements are taken is known as velocity area station and the method is known as the velocity area method.

9. Velocity in a river flow can be calculated by using _________
a) By current meter
b) By emperical formulae
c) By infiltration method
d) By hydrograph
View Answer

Answer: a
Explanation: The velocity flow at any point in an open channel or in a river can be most accurately and conveniently determined by mechanical device called current metre in this device the velocity of flow can be read from rating table.

10. Which of the following method is not used in measuring the velocity of a stream?
a) By floats
b) By rod float
c) By hydrograph
d) By colour
View Answer

Answer: c
Explanation: Hydrograph is a method of estimation of runoff. While the rest of methods used in measuring the velocity of a stream/ river or canal. Hydrograph is a graph which shows the variations of discharge with respect to time.

11. The maximum flood discharge is also known as ___________
a) Peak flow
b) Maximum flow
c) Peak discharge
d) Peak flood
View Answer

Answer: a
Explanation: The maximum rate of discharge during a period of runoff, which is caused by storm, is called a peak flow maximum flood discharge. An estimation of maximum flood discharge is a first step in planning for flood regulation.

12. Which of the following method is used to estimate maximum flood discharge?
a) By travelling screen
b) By current meter
c) By physical indication of past floods
d) By salt velocity
View Answer

Answer: c
Explanation: The results obtained by the physical indication of past floods methods are somewhat reliable. By oral enquiry in the villages situated on the banks of the river, the maximum water level attained in past 35 years can be obtained. But this method is out-dated.

13. ________formula is used only in southern India for calculating maximum flood discharge.
a) Dickens
b) Ryve’s
c) Lacey’s
d) Francis
View Answer

Answer: b
Explanation: Ryve’s (1884) formula is used only in Southern India.
Q = C(A)2/3.
The coefficient “C” depends on the maximum intensity of rainfall and other factors such as shape slopes exedra of the catchment.

14. A catchment area of 30.5 km2 is situated in Central India calculate the maximum discharge coming from the catchment area.
a) 253.08 cumecs
b) 341.06 cumecs
c) 457.88 cumecs
d) 485.66 cumecs
View Answer

Answer: a
Explanation: As the catchment area is situated in central India. Dicken’s formula is suitable and a maximum value of Dickens Coefficient is taken as 19.5
Q = CA3/4
Q = 19.5 × (30.5)3/4
Q = 253.08 cumecs.

15. If the catchment area is situated in north India, then what is the flood coefficient?
a) 10.45
b) 11.37
c) 12.6
d) 19.4
View Answer

Answer: b
Explanation: Dicken’s formula (1865)

Region Value of C
North India 11.37
Central India 11.77 – 19.28
Western India 22.04

Sanfoundry Global Education & Learning Series – Strength of Materials.

To practice all areas of Strength of Materials, here is complete set of 1000+ Multiple Choice Questions and Answers.

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