Civil Engineering
Civil Engineering MCQs with Answers and Explanations
Civil engineering MCQs with answers and detailed explanations for PEC, NTS, WAPDA, PPSC and engineering job tests. Free subject-wise online practice. Take a scored quiz instead →
Euler’s crippling load formula for a column with both ends hinged (pinned) is given by:
Api^2 * E * I / L^2
Bpi^2 * E * I / (4 * L^2)
C4 * pi^2 * E * I / L^2
D2 * pi^2 * E * I / L^2
For a simply supported beam of length L carrying a central point load W, the maximum bending moment is:
AW * L^2 / 8
BW * L / 4
CW * L / 2
DW * L / 8
The point of contraflexure in a beam is defined as the point where the:
ADeflection is zero
BBending moment is maximum
CShear force is maximum
DBending moment changes sign (becomes zero)
The ratio of linear stress to linear strain within the elastic limit is defined as:
AModulus of Rigidity
BYoung's Modulus of Elasticity
CPoisson's Ratio
DBulk Modulus
The contour lines of different elevations can intersect each other only in the case of a:
ARidge line
BOverhanging cliff
CVertical cliff
DSaddle
The sensitivity of a level tube increases with:
AIncrease in the viscosity of the liquid
BDecrease in the diameter of the tube
CIncrease in the radius of curvature of the bubble tube
DDecrease in the length of the bubble tube
The whole circle bearing (WCB) of a line is 290 degrees 30 minutes. Its reduced bearing (RB) is:
AS 69 degrees 30 minutes W
BS 20 degrees 30 minutes E
CN 69 degrees 30 minutes W
DN 20 degrees 30 minutes W
In levelling, the correction for combined curvature and refraction is given by (where D is distance in km):
A0.0567 * D^2 meters
B0.0785 * D^2 meters
C0.0673 * D^2 meters
D0.0112 * D^2 meters
In surveying, the curvature of the earth is taken into account when the area exceeds:
A50 square kilometers
B250 square kilometers
C500 square kilometers
D100 square kilometers