MCQ
1601. Screw thead-এর Major dia. ও Minor dia-এর পার্থক্য-
Depth of thread
Depth of teeth
Pitch
Whole depth
Civil MCQ
Theory of structure mcq
Civil Department all mcq
থিওরি অব স্ট্রাকচার
চাকুরির বিগত সালের সকল প্রশ্ন
ব্যাখ্যা: Explained:- পিচ ডায়া (Pitch dia) = মেজর ডায়া (Major dia) -মাইনর ডায়া (Minor dia)।
1602. The moment of inertia of a triangular section (height h, base b) about its base, is--
bh²/12
b^2h /12
bh^3 /12
b^3 h/12
1603. The minimum depth of building foundations on
Sandy soils is 80 cm to 100 cm
Clay soils is 90 cm to 160 cm
Rocky soils is 5 cm to 50 cm
All the above
1604. For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as
Dry of OMC and wet of OMC
Wet of OMC and dry of OMC
) Wet of OMC and wet of OMC
Dry of OMC and dry of OMC where OMC is optimum
1605. A material is said to be perfectly elastic if--
It regains its original shape on removal of the load
It regains its original shape partially on removal of the load
It does not regain its original shape at all
None of these
1606. The degree of indeterminacy of the frame in the given figure, is --
1
2
3
Zero
1607. IF Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
Q=S+F
Q=S-F
Q=F-S
Q=S*F
1608. 250mm Rod কে 50kN বল দিয়ে টানলে তা যদি 0.3mm বর্ধিত হয় তাহলে Strain-এর মান কত?
0.0125
0.012
0.0012
0.0015
Civil MCQ
Theory of structure mcq
Civil Department all mcq
থিওরি অব স্ট্রাকচার
চাকুরির বিগত সালের সকল প্রশ্ন
ব্যাখ্যা: Explained: Strain = l/L = 0.3/250 = 0.0012
1609. The ultimate bearing capacity of a soil, is
Total load on the bearing area
Safe load on the bearing area
Load at which soil fails
Load at which soil consolidates
1610. Terzaghi's analysis assumes:
Soil is homogeneous and isotropic
Elastic zone has straight boundaries inclined at = to the horizontal and plastic zones fully developed
Failure zones do not extend above the horizontal plane through the base of the footing
All the above
1611. A compound bar consists of two bars of equal length. Steel bar cross-section is 3500 mm2 and that of brass bar is 3000 mm2. These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 MN/mm2, the stresses developed are:
b=10 N/mm2 s = 20 N/mm2
b=8 N/mm2 s = 16 N/mm2
b=6 N/mm2 s = 12 N/mm2
b=5 N/mm2 s 10 N/mm2
1612. The load on a spring per unit deflection, is called --
Stiffness
Proof resilience
Proof stress
Proof load
1613. Pick up the correct statement from the following:
Isotropic consolidation of clay can be obtained in the triaxial apparatus under equal allround pressure
If the present effective stress is the maximum to which the clay has ever been subjected, it is called normally consolidated clay
If the present effective stress in the past was more than present effective stress, it is called over-consolidated clay
All the above
1614. একটি বিমের উপর Linearly distributed load থাকলে তার Shear Force Diagram এর আকৃতি কীরূপ হবে?
Linear
Parabolic
Cubic
কোনোটি নয়.
Civil MCQ
Theory of structure mcq
Civil Department all mcq
থিওরি অব স্ট্রাকচার
চাকুরির বিগত সালের সকল প্রশ্ন
ব্যাখ্যা: Explained: LDL এর জন্য SFD হবে linear। linear মানে হেলানো সরল রেখা।
1615. A shaft rotating N.R.M. under a torque T, transmits a power--
/30 Newton metres/sec
/30 Newton metres/min
/60 Newton metres/min
/60 Newton metres/sec
1616. Compression of soil occurs rapidly if voids are filled with
Air
Water
Partly with air and partly with water
None of these
1617. A suspended particle falls through a height minutes. If the viscosity of water is and specific gravity of the particle is, the diameter of the particle is (where M is a constant factor)
103M (H/t)
104M (H/t)
105M (H/t)
102M (H/t)
1618. শক্তি প্রয়োগের দিক বরাবর একটি Bar-এর যে পরিবর্তন হয় তাকে কী বলা --
Linear Strain
Lateral Strain
Volumetric Strain
Shear Strain
1619. If the shearing stress is zero on two planes, then the angle between the two planes is
45"
90°
135°
225"
1620. Chemical weathering of soil is caused due to
Oxidation
Carbonation
Hydration
All the above