Civil Engineering MCQs

Page No. 20

The surface tension of mercury at normal temperature compared to that of water is____________________?


amore


bless


csame


dmore or less depending on size of glass tube


View Answer more

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?


a10m/sec2


b9.81 m/sec2


c10.2/m sec


d9.75 m/sec2


View Answer 10m/sec2

The normal stress in a fluid will be constant in all directions at a point only if_________________?


ait has uniform viscosity


b it has zero viscosity


cit is frictionless


d it is at rest.


View Answer it is at rest.

When the flow parameters at any given instant remain same at every point, then flow is said to be____________________?


aquasi static


bsteady state


claminar


duniform


View Answer uniform

The specific weight of water is 1000 kg/m” _______________?


a at norma] pressure of 760 mm


b at 4°C temperature


c at mean sea level


dall the above


View Answer all the above

The property of a fluid which enables it to resist tensile stress is known as________________?


acompressibility


bsurface tension


ccohesion


dadhesion


View Answer cohesion

Property of a fluid by which its own molecules are attracted is called ________________?


aadhesion


bcohesion


cviscosity


dcompressibility


View Answer cohesion

Density of water is maximum at ___________________?


a 0°C


b0°K


c4°C


d100°C


View Answer 100°C

Pick up the incorrect statement from the following?


aThe process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion


bSludge digestion is carried out in sludge tank


cThe gases produced in sludge digestion process, contain 75% carbon dioxide


dThe gases produced in sludge digestion process, contain 75% methane



Pick up the incorrect statement from the following?


aThe mixture of water and waste products, is called sewage


bThe treated sewage effluents, are generally used for irrigating the crops


cThe process of collecting, treating and disposing off the sewage, is called sewerage


d The old convergence system was definitely better than water carried sewerage system



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