Quiz: Civil Quiz 89

Civil Quiz 89

Which of the following statement is correct as regard to water wheels?

They give constant efficiency, even if the discharge is not constant.

all of the above

They have slow speeds.

They are suitable even for low water heads

A flow through an expanding tube at constant rate is called

Steady non-uniform flow

Steady uniform flow

Unsteady non-uniform flow

Unsteady uniform flow

A river meandering through an alluvial plain has a series of consecutive curves of reversed order connected with short straight sketches, is called

meandering length

crossing

none of these

meandering belt

The normal consistency of ordinary Portland cement is about

20%

30%

40%

10%

Which of the following is not the method of disposal of sewage from septic tank?

biological filters

vacuum filter

upflow anaerobic filter

soil absorption system

The oldest part of exogenous tree is

pith

sapwood

heartwood

cambium layer

Which of these problems can occur during de-watering of well?

Shifting of wells

All of the above

Tilting of wells

Sand blowing

Which of the following pump is sucessfully used for lifting water to the boilers?

Reciprocating pump

Jet pump

Air-lift pump

Centrifugal pump

Reciprocating pumps

Single stroke produce pulsating flow

Are not suitable for variable heads

Are four times costlier than centrifugal pumps

Are not suitable for pumping water containing sediments

4 PROJECTION OF SOLIDS WITH AXIS INCLINED TO HORIZONTAL PLANE AND PARALLEL TO VERTICAL PLANE

TRUE

FALSE

None of the above

Both A and B

In high rate activated sludge treatment, bacterias are removed from

40 to 60%

80 to 95%

20 to 40%

60 to 80%

A regular cone is placed on horizontal plane on its base the top view is

square

triangle

circle

rectangle

______ is the branch of civil engineering dealing with the behaviour of fluid when it is in motion, with reference to the force responsible for flow.

hydro kinematics

Hydraulics

hydro statics

Hydro dynamics

dimensionally homogeneous equation is applicable to

C.G.S. system only

All systems of units.

F.P.S. system only

M.K.S. and SI systems

The peaking factor is directly proportional to the population of the city.

FALSE

Both A and B

None of the above

TRUE

Hard water may cause bursting of boilers.

None of the above

Both A and B

Agree

Disagree

Splines are keys.

Both A and B

FALSE

TRUE

None of the above

Critical Path Net Work helps an engineer

To concentrate his attention on critical activities

To divert the resources from non-critical advanced activities to critical activities

All the above

To be cautious for avoiding any delay in the critical activities to avoid delay of the whole project

The colour of water is expressed in numbers of a

pO value

platinum cobalt scale

silica scale

none of these

If the surface of liquid is convex, men

Cohesion pressure is decreased

Cohesion pressure is increased

Cohesion pressure is negligible

There is no cohesion pressure

Which of the following bolt is not used in rail tracks?

Fish bolt

Rag bolt

Eye bolt

Dog bolt

Principles of management provide

methods and procedures.

rules and regulations.

general guidelines.

readymade solutions to problems.

"The keyword "" POSDC"" was given by :"

All of these

Koontz & O'Donnell

Fredrick Herzberg

Chesner Barnard

The curve used for ideal transition curve is a

cubic spiral

cubic parabola

clothoid spiral

lemniscate

Bar charts are suitable for

Large projects

Major works

Minor works

All the Above

When semaphore and warner are installed on the same post, then the stop indication is given when

Both semaphore and warner arms lowered

None of the above

Both arms are horizontal

Semaphore arm lowered but warner arm horizontal

What is the specific gravity of settleable particles in the grit chamber?

2.56

2.98

2.89

2.65

A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm2 produces a strain of cm. If Young's modulus of steel is 2.1 _____ 106kg/cm2, the bar is

In the elastic range

At yield point

In the plastic range

None of these

The hammer blow in pipes occurs when

The flow of fluid through the pipe is suddenly brought to rest by closing of the valve

There is excessive leakage in the pipe

The flow of fluid through the pipe is gradually brought to rest by closing of the valve

The pipe bursts under high pressure of fluid

The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:

Twisted fibres

Wind cracks

Radial shakes

Heart shakes