Engineering
Engineering MCQs With Answers
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Duty of irrigation water is defined as the area of land irrigated per unit of:
AVolume of rainfall (hectares per mm)
BTotal canal length (km per hectare)
CDischarge (hectares per cumec)
DCrop depth (meters per hectare)
Lacey’s regime theory for stable channel design in alluvial soil is applicable when flow is in:
APurely non-scouring supercritical flow
BRigid boundary lined canal
CNon-coherent boundary condition
DTrue regime condition with silt factor f
The critical path in a CPM network diagram represents the sequence of activities having:
AMinimum duration
BMaximum total float
CZero total float and maximum duration
DIndependent float equal to activity time
The soundess of cement is tested to detect excess presence of:
AIron oxide
BFree lime and magnesia
CAlumina and silica
DGypsum content
In PERT, the duration of an individual activity is assumed to follow which probability distribution?
ABeta distribution
BPoisson distribution
CExponential distribution
DNormal distribution
Initial setting time of ordinary Portland cement (OPC) should not be less than:
A10 minutes
B60 minutes
C30 minutes
D600 minutes
The maximum permissible limit of fluoride in drinking water as per WHO guidelines is:
A3.0 mg/L
B0.5 mg/L
C1.5 mg/L
D5.0 mg/L
Self-cleansing velocity in a sanitary sewer pipe is maintained to prevent:
AProduction of toxic gases
BDeposition and settling of suspended solid matter
CBackflow into domestic connections
DExcessive scouring of pipe invert
Biochemical Oxygen Demand (BOD5) test is standardly measured after incubation at:
A10 degrees Celsius for 5 days
B37 degrees Celsius for 3 days
C25 degrees Celsius for 7 days
D20 degrees Celsius for 5 days
The main objective of adding alum during water treatment process is to act as a:
AFilter aid to increase pH
BDisinfectant to kill pathogenic bacteria
CSoftener to remove permanent hardness
DCoagulant to precipitate colloidal impurities