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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

Strength of Materials Books
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Strength of Materials Questions and Answers – Deflection of Continuous Beam

Posted on December 15, 2017 by Manish

This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on “Deflection of Continuous Beam”.

1. The maximum negative bending moment in fixed beam carrying udl occurs at ___
a) Mid span
b) 1/3 of the span
c) Supports
d) Half of the span
View Answer

Answer: c
Explanation: In case of fixed beam subjected to gravity loads maximum hogging or negative bending moment develops at the supports. At centre, the maximum bending moment is reduced.

2. A fixed beam of uniform section is carrying a point load at the centre, if the moment of inertia of the middle half portion is reduced to half its previous value, then the fixed end moments will ______
a) Increase
b) Remains constant
c) Decrease
d) Change their direction
View Answer

Answer: a
Explanation: The flexural rigidity value is reduced in middle half portion of second case fixed end moments which have developed in a beam section will be increases.

3. STATEMENT: “ In propped cantilevers, the prop reaction is 3/8 wl “ .
a) True
b) False
View Answer

Answer: a
Explanation: In propped cantilever beam net deflection at fixed end is zero therefore Rl3/3EI = wl4/8EI
R= 3wl/8.

4. A propped cantilever beam carrying total load “W” distributed evenly over its entire length calculate the vertical force required in the prop.
a) 3/4 W
b) W
c) 5/8 W
d) 3/8 W
View Answer

Answer: d
Explanation: Therefore Total load on beam = W = wl
strength-materials-questions-answers-deflection-continuous-beam-q4
Rl3/3EI = Wl3/ 8EI.
R = 3W/8.
The vertical force required at the prop is 3W/8.

5. _____ is a small opening made in the bottom or sides of a tank.
a) Mouthpiece
b) Orifice
c) Sill
d) Sluice
View Answer

Answer: b
Explanation: An orifice is defined as a small opening of any cross sections such as circular, square, triangular& rectangular etc. made in the walls or the bottom of a tank containing liquid in it through which the liquid flows.

6. A mouthpiece is a short length of a pipe which is not more than____ times its diameter.
a) 3-4
b) 5-6
c) 1 -2
d) 2-3
View Answer

Answer: d
Explanation: A mouth piece is defined as a short length of a pipe which is not more than two or three times its diameter, fitted to an orifice of same diameter provided especially in a tank containing liquid.

7. The section which has minimum cross sectional are in a flow is known as _______
a) Vena contracta
b) Thyrocade
c) Submergent
d) Upstream edge
View Answer

Answer: a
Explanation: The section of the jet, at which the flow in a liquid has minimum cross sectional area, is known as vena contracta. This is due to the fact that liquid particles do not change their directions abruptly.

8. Bell mouthed orifices can be categorised in according to _____
a) Size
b) Shape
c) Shape of upstream
d) Nature of discharge
View Answer

Answer: c
Explanation: The orifices are classified on the basis of their size, shape, shape of upstream edge and discharge conditions. According to shape of upstream edge, the orifices are classified as sharp edged orifice and Bell mouthed orifice.

9. Which of the following is not a hydraulic coefficient?
a) Coefficient of contraction
b) Coefficient of discharge
c) Coefficient of viscosity
d) Coefficient of velocity
View Answer

Answer: c
Explanation: Coefficient of viscosity can be defined as the shear stress required producing unit rate of angular deformation. It is also called as dynamic viscosity.

10. Theorotical velocity = _______
a) (2gh)1/3
b) (2gh)1/2
c) (2gh)1/4
d) 2gh
View Answer

Answer: b
Explanation: The coefficient of velocity the ratio of actual velocity of the liquid to the theoretical velocity. Theoretical velocity = (2gh)1/2.
Where h = liquid head above the centre of orifice.

11. The value of Cv varies _______ to ________
a) 0.95 – 0.99
b) 0.93 – 0.95
c) 0.97 – 1
d) 0.94 – 0.96
View Answer

Answer: a
Explanation: The value of coefficient of velocity (Cv) vary from 0.95 to 0.99 for different orifices depending on shape, size of the orifices and the head under which floor takes place.

12. The Cv taken for sharp edged orifice generally is ____
a) 0.97
b) 0.98
c) 0.95
d) 0.99
View Answer

Answer: b
Explanation: The Cv taken for sharp edged orifice generally is 0.98.

Value For Sharp edged orifice Hydraulic coefficient
0.98 Cv
0.64 Ca
0.62 Cd

13. Coeffecient of discharge varies from ____ to _____
a) 0.64 to 0.68
b) 0.61 to 0.65
c) 0.63 to 0.67
d) 0.67 to 0.7
View Answer

Answer: b
Explanation: Coefficient of discharge is defined as the ratio between actual discharge from an orifice and its theoretical discharge. It varies from 0.61 to 0.65.Generally, the value for Cd = 0.62 Sir sharp edged orifice.

14. STATEMENT: The relation between hydraulic coefficients is Cd = Cc × Cv.
a) False
b) True
View Answer

Answer: b
Explanation: Cd = Qa / Qth
But Qa = ac V =(Cc a) × Cv × (2gh)1/2.
Qth = a Vth
Cd = Qa Qth = Cc a × Cv (2gh)1/2/a × (2gh)1/2.
Cd = Cc × Cv.

15. Calculate the actual velocity of jet if coefficient of velocity is 0.97. The head of water on orifice of diameter 2 cm is 6 m.
a) 11 m/s
b) 12 m/s
c) 10.5 m/s
d) 13 m/s
View Answer

Answer: c
Explanation: We know that quotient of velocity the ratio of actual velocity to theoretical velocity. The actual velocity of jet Va = Cv × (2gh)1/2.
Va = 0.97 (2× 9.81 ×6 )1/2.
Va = 10.5 m/s.

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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