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 →
Vicat apparatus with plunger of 10 mm diameter is used to determine which property of cement?
AFineness of cement
BNormal consistency of standard cement paste
CTensile strength
DSoundness due to magnesia
A rainfall hyetograph represents a graphical plot of:
AAccumulated rainfall versus time
BRainfall intensity versus time
CStreamflow discharge versus time
DEvaporation loss versus temperature
The depth of water required by a crop during its entire period of growth in the field is called its:
ADuty
BDelta
CBase Period
DCrop Period
The silt factor ‘f’ in Lacey’s regime theory for canal design is related to average particle diameter ‘d’ (in mm) by:
Af = 1.76 * sqrt(d)
Bf = 1.35 * (d)^(1/3)
Cf = 2.00 * sqrt(d)
Df = 0.75 * d
In PERT project management, the activity variance (sigma^2) is calculated using optimistic (a) and pessimistic (b) time estimates as:
A[(b - a) / 6]^2
B[(b + a) / 6]^2
C[(b - a) / 4]^2
D[(b - m) / 6]^2
In CPM network diagramming, a dummy activity is used to:
ARepresent an activity consuming maximum time and cost
BEstablish logical precedence relationship without consuming time or resources
CConnect initial and final nodes directly
DDelay critical path activities
Which wastewater treatment unit process works primarily on an aerobic suspended-growth biological mechanism?
ATrickling Filter
BActivated Sludge Process (ASP)
CAnaerobic Digester
DSeptic Tank
The sound pressure level corresponding to the threshold of human hearing is standardized at:
A0 dB
B20 dB
C60 dB
D100 dB
The minimum radius of curvature for a circular railway curve of 1 degree (1° curve on 30m arc) is approximately:
A573 m
B1720 m
C1146 m
D860 m
The presence of excessive iron and manganese in municipal water supply causes:
ADental fluorosis
BReddish-brown staining of laundry and plumbing fixtures
CMethemoglobinemia (blue baby disease)
DGoiter and thyroid disorders