Engineering
Engineering MCQs With Answers
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The active earth pressure coefficient Ka for a soil with internal friction angle phi is given by:
A(1 + sin(phi)) / (1 - sin(phi))
Bcos(phi) / (1 + sin(phi))
C(1 - sin(phi)) / (1 + sin(phi))
D1 / sin(phi)
Quick sand is a condition that occurs in cohesionless soils when the effective stress becomes:
AZero due to upward seepage pressure
BInfinite due to soil compaction
CEqual to total stress
DMaximum due to heavy surcharge
Atterberg limit corresponding to the water content at which soil passes from plastic state to liquid state is:
AConsistency index
BPlastic limit
CLiquid limit
DShrinkage limit
When the degree of saturation of a soil sample is 100%, the soil is said to be:
ASubmerged soil without voids
BFully saturated soil
CPartially saturated soil
DDry soil
Terzaghi’s ultimate bearing capacity equation for a strip footing on c-phi soil is given by:
Aq_u = c * Nc + q * Nq + 0.5 * gamma * B * Ngamma
Bq_u = c * Nc + q * Nq + 0.3 * gamma * B * Ngamma
Cq_u = 1.3 * c * Nc + q * Nq + 0.4 * gamma * B * Ngamma
Dq_u = 1.2 * c * Nc + q * Nq + 0.5 * gamma * B * Ngamma
The maximum strain in concrete at the outermost compression fiber in flexure at collapse is assumed to be:
A0.0015
B0.002
C0.0045
D0.0035
The ratio of volume of voids to the total volume of soil mass is called:
ADegree of saturation
BAir content
CPorosity
DVoid ratio
The minimum percentage of shear reinforcement in a beam is provided to prevent sudden failure from:
ADiagonal tension cracking
BBond failure
CFlexural cracking
DTorsional fatigue
In reinforced concrete beams, side face reinforcement is provided when the depth of the web exceeds:
A450 mm
B500 mm
C750 mm
D1000 mm
The modular ratio ‘m’ in working stress design of reinforced concrete is taken as:
A280 / sigma_cbc
BEs / Ec without modifier
C200 / (3 * sigma_cbc)
D280 / (3 * sigma_cbc)