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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 – Combined Stress

Posted on December 15, 2017 by Manish

This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on “Combined Stress”.

1. Bond stress for M20 grade concrete in tension is
a) 1.4
b) 1.2
c) 1.5
d) 1.8
View Answer

Answer: b
Explanation: Bond stress is the shear stress acting parallel to the bar on the interface between the reinforcing bar and the surrounding concrete. Hence it is the stress developed between the contact surface of Steel and concrete to keep them together. The value of M20 designs Bond stress is 1.2 in tension.

2. The formation of diagonal cracks at junctions is due to ________
a) Shear stress
b) Bond stress
c) Temperature stress
d) Lateral stress
View Answer

Answer: a
Explanation: Bending is usually accompanied by shear. The combination of shear and bending stresses produces the principle stresses which causes diagonal tension in the beam section. This should be resisted by providing shear reinforcement in the form of vertical stirrups (or) bent up bars along with stirrups.

3. Calculate the factored bending moment of a rectangular reinforced concrete beam of effective span 4300 mm and load imposed 37.5 kN/m.
a) 100kNm
b) 127kNm
c) 130kNm
d) 145kNm
View Answer

Answer: c
Explanation: Factored load (w) = 1.5×37.5 = 56.25 kN/m.
Factored bending moment for simply supported beam (M) = wl2/ 8.
= 56.25×(4.3)2/ 8 = 130kNm.

4. Determine the limiting percentage of steel for singly reinforced sections of M20 grade & Fe415.
a) 0.68
b) 0.79
c) 0.96
d) 1.76
View Answer

Answer: c
Explanation: The limiting percentage of steel for singly reinforced sections of M20 grade & Fe415 is 0.96.

Grade of concrete Limiting percentage of tensile Steel for a Fe415
M15 0.72
M20 0.96
M25 1.19

5. Calculate the limiting depth of neutral axis for mild steel of effective depth 400 mm
a) 318mm
b) 212mm
c) 455mm
d) 656mm
View Answer

Answer: b
Explanation: The limiting depth of neutral axis Fe 250 steel is
Xu (max) = 0.53 × d ( for Fe250)
= 0.53 × 400
= 212mm.

6. Lap splices should not be used for bars larger than _____ mm.
a) 45mm
b) 54mm
c) 36mm
d) 72mm
View Answer

Answer: c
Explanation: Splices are provided when the length of bar is less than that required. The splicing of reinforcement is provided either by lap joint or mechanical joint or welded Joint. Lap splices should not be used for bars larger than 36 mm for larger diameter, bars may be welded.

7. Anchorage value for “U” hook is ________
a) 16 × diameter of bar
b) 12 × diameter of bar
c) 10 × diameter of bar
d) 8 × diameter of bar
View Answer

Answer: a
Explanation: Anchorage value for “U” hook is 16 × diameter of bar.

Type of Hook / Bend in degrees Anchorage Value
U hook 16 × diameter of bar
45 bend 4 × diameter of bar
90 bend 8 × diameter of bar
135 bend 12 × diameter of bar

8. The standard ____ are provided in deformed bars.
a) Anglets
b) Bends
c) Fillets
d) Lugs
View Answer

Answer: b
Explanation: In situations, where straight anchorage length cannot be provided due to lack of space. To improve the anchorage of bars, standard bends are provided in deformed bars.

9. Transverse bars are also called as_____
a) Main bars
b) Anchor bars
c) Distribution bars
d) Stirrups
View Answer

Answer: c
Explanation: In addition to main bars, along the shorter direction provided at the bottom, minimum reinforcement along the longer span and are also provided on top of the main bars and at right angles to them. These are called distribution bars are transverse bars.

10. A slab supporting only in two edges opposite to each other is ______
a) Two way slab
b) One way slab
c) Continuous slab
d) Cantilever slab
View Answer

Answer: b
Explanation: If the ratio of the longest span the shorter span is greater than 2 or A slab supporting only in two edges (opposite to each other) is called one way slab. This slab spans across shorter span practically.

11. Torsion reinforcement is provided in _____ slab
a) One way slab
b) Two way slab
c) Simply supported slab
d) Cantilever slab
View Answer

Answer: b
Explanation: A slab supporting on all four edges is known as two way slab. In this slab, the ratio of longest span to the shorter span is less than 2. It requires torsional reinforcement because there’s a chance of twisting at corners.

12. Generally in residential buildings, the width of stay is kept as ______
a) 2m
b) 1m
c) 5m
d) 4m
View Answer

Answer: b
Explanation: The stair consists of series of steps with landings at appropriate intervals. The width of stair depends upon the type of building in which it is provided. Generally in residential buildings, the width of stair is 1 m.

13. As per IS 456:2000; the slope or pitch of stairs should be in between 25 ° to _____
a) 45°
b) 90°
c) 40°
d) 120°
View Answer

Answer: c
Explanation: Each step has one tread and one rise. As per IRC, the tread is in between 250mm to 300 mm. The slope or pitch of the stairs should be in between 25° to 40°.

14. When space is less; the _____ staircases is much preferred.
a) Open well
b) Dog legged
c) Spiral stair
c) Circular
View Answer

Answer: b
Explanation: The most common type of Stairs arranged with two adjacent flights running parallel with mid landing. Where the space is less, dog legged staircase is generally provided resulting in economical utilisation of available place.

15. The ________ of a column is the distance between the points of zero bending moments.
a) Slenderness ratio
b) Eccentricity
c) Radius of gyration
d) Effective length
View Answer

Answer: d
Explanation: Effective length of a column is the distance between the points of zero bending moments (point of contra flexure) of a buckled column the effective length of the column depends upon the unsupported length and the end conditions.

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.

« Prev Page - Strength of Materials Questions and Answers – Maximum Shear Stress – 2
» Next Page - Strength of Materials Questions and Answers – Bending Stress due to Eccentric Loading
« Strength of Materials Questions and Answers – Maximum Shear Stress – 2
Strength of Materials Questions and Answers – Bending Stress due to Eccentric Loading »

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