Skip to main content

Analysis and Design of Structures - MCQ from AMIE exam (Winter 2024)

1. A beam is defined as a structural member subjected to 
(a) axial loading
(b) transverse loading*
(c) axial and transverse loading
(d) none of these.
Hint: A beam is primarily designed to resist bending moments caused by loads applied perpendicular (transverse) to its longitudinal axis. 
 
2. The equivalent length of a column of length L, having both the ends hinged, is
(a) 2L
(b) L*
(c) L/2
(d) L/√2
 
3. A structural member subjected to compressive stress in a direction parallel to its longitudinal axis, is generally known as
(a) column
(b) stanchion
(c) strut
(d) all the above*

4. The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called 
(a) stiffness
(b) proof resilience*
(c) proofstress
(d) proof load.
Hint:
5. The most economical section for a column, is
(a) rectangular
(b) Solid round
(c) tubular section
(d) hexagonal
Hint: Tubular section spreads material away from the centroid, maximizing II and rr, making it most economical for buckling. 
 
6. Live load
(a) varies in magnitude
(b) varies in position
(c) is expressed as uniformly distributed load
(d) all the above*
 
7. The forces in the members of simple trusses, may be analysed by
(a) graphical method
(b) method of joints
(c) method of sections
(d) all the above*

8. The point of contra flexure is the point where 
(a) B.M. changes sign
(b) B.M is Maximum
(c) B.M is Minimum
(d) S.F is zero. 
Hint: The point of contraflexure (or inflection point in bending) occurs in a beam where the bending moment changes sign (from positive to negative or vice versa), which also means the bending moment is zero at that point. 

By  amiestudycircle.com

Labels:

Comments

Post a Comment

Popular posts from this blog

Mechanics of Fluids (Solved Numerical Problems)

Numerical The surface Tension of water in contact with air at 20°C is 0.0725 N/m. The pressure inside a droplet of water is to be 0.02 N/cm² greater than the outside pressure. Calculate the diameter of the droplet of water. (7 marks) (AMIE Summer 2023) Solution Surface tension, σ = 0.0725 N/m Pressure intensity, P = 0.02 N/m 2 P = 4σ/d Hence, the Diameter of the dropd = 4 x 0.0725/200 = 1.45 mm Numerical Find the surface tension in a soap bubble of 40 mm diameter when the inside pressure is 2.5 N/m² above atmospheric pressure. (7 marks) (AMIE Summer 2023) Answer: 0.0125 N/m Numerical The pressure outside the droplet of water of diameter 0.04 mm is 10.32 N/cm² (atmospheric pressure). Calculate the pressure within the droplet if surface tension is given as 0.0725 N/m of water. (AMIE Summer 2023, 7 marks) Answer: 0.725 N/cm 2   Numerical An open lank contains water up to a depth of 2 m and above it an oil of specific gravity 0.9 for a depth of 1 m. Find the pressure intensity (i) at t...
Post a Comment
Read more

Geotechnical & Foundation Engineering (Solved Numerical Problems)

Numerical A 1000 cc core cutter weighing 946.80 g was used to find out the in-situ unit weight of an embankment. The weight of the core cutter filled with soil was noted to be 2770.60 g. Laboratory tests on the sample indicated a water content of 10.45 % and specific gravity of solids of 2.65. Determine the bulk unit weight, dry unit weight, void ratio, and degree of saturation of the sample. (AMIE Summer 2023, 8 marks) Solution Weight of soil in core cutter = 2770.60 - 946.80 = 1823.8 g Bulk unit weight, γ t = W/V = 1823.8/1000 = 1.82 g/ccDry unit weight, γ d = γ t /(1 + w) = 1.82/(1 + 0.1045) = 1.65 g/cc Void ratio, e = (G s γ w /γ d ) - 1 = (2.65 x 1.0/1.65) - 1 = 0.61 Degree of saturation, S = wG s /e = (0.1045 x 2.65)/0.61 = 0.4540 = 45.4% Numerical What is the theoretical height of the capillary rise and the capillary pressure in fine-grained soil with an effective size (D 10 ) of 0.002 mm? (AMIE Summer 2023, 4 marks) Solution D 10 = 0.002 mm;  Using the assumption that th...
Post a Comment
Read more

Energy Systems (Solved Numerical Problems)

Wind at 1 standard atmospheric pressure and \({15^0}C\) has velocity of 15 m/s, calculate (i) the total power density in the wind stream (ii) the maximum obtainable power density (iii) a reasonably obtainable power density (iv) total power (v) torque and axial thrust Given: turbine diameter = 120 m, and turbine operating speed = 40 rpm at maximum efficiency. Propeller type wind turbine is considered. (AMIE Winter 2023) Solution For air, the value of gas constant is R = 0.287 kJ/kg.K 1 atm = 1.01325 x 105 Pa Air density \(\rho  = \frac{P}{{RT}} = \frac{{1.01325x{{10}^5}}}{{287}}(288) = 1.226\,kg/{m^3}\) Total Power \({P_{total}} = \rho A{V_1}^3/2\) Power density \(\begin{array}{l}\frac{{{P_{total}}}}{A} = \frac{1}{2}\rho {V_1}^3\\ = \frac{1}{2}(1.226){(15)^3}\\ = 2068.87{\mkern 1mu} W/{m^2}\end{array}\) Maximum power density \(\begin{array}{l}\frac{{{P_{\max }}}}{A} = \frac{8}{{27}}\rho A{V^3}_1\\ = \frac{8}{{27}}(1.226){(15)^3}\\ = 1226{\mkern 1mu} W/{m^2}\end{array}\) Assuming eff...
Post a Comment
Read more