A. 32 km
B. 20 km
C. 8 km
D. 4 km

## The eddy viscosity for turbulent flow is______________?

A. a function of temperature only
B. a physical property of the fluid.
C. dependent on the flow
D. independent of the flow

A. 0.223 R
B. 0.423 R
C. 0.577 R
D. 0.707 R

A. d > m > e
B. d > e > m
C. e > m > d
D. e > d > m

## The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid______________?

B. uniform flow
C. incompressible flow
D. frictionless flow

A. x”7
B. x,/2
C. x4/5
D. x3/5

A. 0.423 D
B. 0.577 D
C. 0.223 D
D. 0.707 D

## The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is__________________?

A. laminar flow
B. transition flow
C. turbulent flow
D. not predictable from the given data

A. 1/3 R
B. 1/2 R
C. 2/3 R
D. 3/4R

## The discharge through a V- notch varies as______________?

A. H1/2
B. H3’2
C. H5/2
D. H5’4 where H is head

A. H/3
B. H/2
C. 2 H/5
D. 2 H/3

## If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will________________?

A. rise until its weight equals the buoyant force
B. tend to move downward and it may finally sink
C. float
D. none of the above

A. 1
B. 4/3
C. 2
D. 4

A. g/3
B. g/2
C. 2g/3
D. g

## An ideal fluid is_______________?

A. one which obeys Newton’s law of viscosity
B. frictionless and incompressible
C. very viscous
D. frictionless and compressible

A. 4 kN/m2
B. 10 kN/m2
C. 12 kN/m2
D. 14 kN/m2

A. 5kN
B. lOkN
C. 15 kN
D. 20 kN

A. 3.75 m
B. 4.0 m
C. 4.2m
D. 4.5m

## A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be________________?

A. 1 m
B. 10m
C. 100m
D. none of the above

## A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is___________________?

A. zero
B. one-fourth its value when cylinder was full
C. one-half its value when cylinder was full
D. cannot be predicted from the given data

## A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be__________________?

A. less than 1 m/sec
B. 1 m/sec
C. 1.5 m/sec
D. 2 m/sec

## A floating body is said to be in a state of stable equilibrium_________________?

A. when its metacentric height is zero
B. when the metacentre is above the centre of gravity
C. when the metacentre is below the centre of gravity
D. only when its centre of gravity is below its centre of buoyancy

## The unit of measurement is per quintal for the following?

A. Collapsible gates with rails

## The trap which is provided to disconnect the house drain from the street sewer is called_________________?

A. Master trap
B. Intercepting trap
C. Interception manhole
D. All the above

## The total length of a cranked bar through a distance D. at 45° in case of a beam of effective length L, is_________________?

A. L + 0.42 d
B. L + (2 × 0.42 d)
C. L – (0.42 d)
D. L – (2 × 0.4 d)

A. 0.25 kg
B. 0.50 kg
C. 0.75 kg
D. 1.00 kg

## While estimating a reinforced cement structure, the omitted cover of concrete is assumed_______________?

A. At the end of reinforcing bar, not less than 25 mm or twice the diameter of the bar
B. In thin slabs, 12 mm minimum or diameter of the bar whichever is more
C. For reinforcing longitudinal bar in a beam 25 mm minimum or diameter of the largest bar which is more
D. All the above

## A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then________________?

1. the ball will move to the front
2. the bubble will move to the front
3. the ball will move to the rear
4. the bubble will move to the rear

Find out which of the above statements are correct ?

## While preparing a detailed estimate__________________?

A. Dimension should be measured correct to 0.01 m
B. Area should be measured correct to 0.01 sqm
C. Volume should be measured correct to 0.01 cum
D. All the above

## While estimating the qualities for the construction of a building, the correct metric unit is________________?

A. Metre for length
B. Cubic metre for area
C. Square metres for volume
D. Litre for capacity

A. velocity
B. discharge
D. pressure

## Centre of buoyancy always_________________?

A. coincides with the centre of gravity
B. coincides with the centroid of the volume of fluid displaced
C. remains above the centre of gravity
D. remains below the centre of gravity

## For laminar flow in circular pipes, the Darcy’s friction factor f is equal to_________________?

A. 16/Re
B. 32/ Re
C. 64/ Re
D. none of the above where R,, is Reynolds number

## For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is________________?

A. directly proportional to Reynolds number and independent of pipe wall roughness
B. directly proportional to pipe wall roughness and independent of Reynolds number
C. inversely proportional to Reynolds number and indpendent of pipe wall roughness
D. inversely proportional to Reynolds number and directly proportional to pipe wall roughness

## Hot wire anemometer is used to measure_______________?

A. discharge
B. velocity of gas
C. pressure intensity of gas
D. pressure intensity of liquid

## If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is________________?

A. less than 1
B. between 1 and 100
C. 160
D. 200

## If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be___________________?

A. from reservoir A to reservoirs B and C
B. from reservoir B to reservoirs C and A
C. from reservoir C to reservoirs A and B
D. unpredictable

## If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is__________________?

A. 0.25
B. 0.50
C. 1.0
D. none of the above

## If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then_____________?

A. the pressure throughout the liquid mass is atmospheric
B. there will be vacuum in the liquid
C. the pressure in the liquid mass is greater than hydrostatic pressure
D. none of the above

## For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is_______________?

A. constant
B. dependent only on Reynolds number
C. a function of Reynolds number and relative roughness
D. dependent on relative roughness only

A. 300
B. 337.5
C. 600
D. 675

A. 0.611
B. 0.707
C. 0.855
D. 1.00

A. slightly less
B. slightly more
C. nearly half
D. equal

A. 1.00
B. 0.855
C. 0.7H
D. 0.611

## Coefficient of velocity of venturimeter_________________?

A. is independent of Reynolds number
B. decreases with higher Reynolds number
C. is equal to the coefficient of discharge of venturimeter
D. none of the above

## Drag force is a function of________________?

1. projected area of the body
2. mass density of the fluid
3. velocity of the body

## Flow at constant rate through a tapering pipe is________________?

2. uniform flow
4. non-uniform flow

## Equation of continuity is based on the principle of conservation of_________________?

A. mass
B. energy
C. momentum
D. none of the above

A. 5%
B. 10%
C. 15%
D. 20%

## Which of the following chemical compounds can be used for dechlorination of water ?

A. carbon dioxide
B. bleaching powder
C. sulphur dioxide
D. chloramines

## Which of the following causes a decrease in per capita consumption ?

A. use of metering system
B. good quality of water
C. better standard of living of the people
D. hotter climate

## If the sewage contains grease and fatty oils, these are removed in_________________?

A. grit chambers
B. detritus tanks
C. skimming tanks
D. sedimentation tanks

## If the coliform bacteria is present in a sample of water, then the coliform test to be conducted is_____________?

1) presumptive coliform test
2) confirmed coliform test
3) completed coliform test

A. 4 mm/hr
B. lOmm/hr
C. 20 mm/hr
D. 40 mm/hr

## If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to________________?

A. total alkalinity
B. total hardness
C. total hardness – total alkalinity
D. non carbonate hardness

## In facultative stabilization pond, the sewage is treated by________________?

A. aerobic bacteria only
B. algae only
C. dual action of aerobic bacteria and anaerobic bacteria
D. sedimentation

## In chlorination, with the rise in temperature of water, death rate of bacteria____________?

A. increases
B. decreases
C. remains unaffected
D. none of the above

A. 100 ppm
B. 200 ppm
C. 300 ppm
D. 400 ppm

A. 100000m3
B. 150000m3
C. 180000m3
D. 270000 m3

A. 1000
B. 4000
C. 100000
D. 400000

A. 0 to 50
B. 50 to 150
C. 150 to 350
D. 350 to 500

## For a given discharge, the efficiency of sedimentation tank can be increased by______________?

A. increasing the depth of tank
B. decreasing the depth of tank
C. increasing the surface area of tank
D. decreasing the surface area of tank

A. 4.5 to 6.0
B. 6.5 to 8.0
C. 8.5 to 10.0
D. 10.5 to 12.0

A. X/4
B. X/2
C. X
D. 2X

## Hardy cross method of analysis of distribution system________________?

1) involves successive trials
2) takes economic aspects into account
3) is time consuming

## Ground water is usually free from________________?

A. suspended impurities
B. dissolved impurities
C. both suspended and dissolved impuri¬ties
D. none of the above

A. 1 minute
B. 5 minutes
C. 2-4 hours
D. 12 hours

## In lime-soda process________________?

A. only carbonate hardness is removed
B. only non-carbonate hardness is re-moved
C. lime reduces the carbonate hardness and soda-ash removes the non-carbo¬nate hardness
D. lime reduces the non-carbonate hard-ness and soda-ash removes the carbo¬nate hardness

## In water treatment, rapid gravity filters are adopted to remove_______________?

A. dissolved organic substances
B. dissolved solids and dissolved gases
C. floating solids and dissolved inorganic solids
D. bacteria and colloidal solids

## Settling velocity increases with_______________?

A. specific gravity of solid particles
B. size of particles
C. depth of tank
D. temperature of liquid

## Septic tank is a______________?

1) settling tank
2) digestion tank
3) aeration tank

## Sewage treatment units are designed for_______________?

A. maximum flow only
B. minimum flow only
C. average flow only
D. maximum and minimum flow

A. 5-10 years
B. 15-20 years
C. 30-40 years
D. 40-50 years

## Sludge volume index is defined as the ratio of_______________?

A. percentage of sludge by volume to percentage of suspended solids by weight
B. percentage of sludge by volume to percentage of total solids by weight
C. percentage of suspended solids by weight to percentage of sludge by volume
D. percentage of total solids by weight to percentage of sludge by volume

A. 10 years
B. 25 years
C. 50 years
D. 75 years

## Sewerage system is designed for_______________?

A. maximum flow only
B. minimum flow only
C. average flow only
D. maximum and minimum flow

A. N = y + R
B. y = N + R
C. R = N + y
D. R > (N + y)

## Scour valves are provided ______________?

A. at street corners to control the flow of water
B. at every depression and dead ends to drain out the waste water that may collect there
C. at the foot of rising main along the slope to prevent back running of water
D. at every summit of rising mains

## Most suitable section of sewer in separate sewage system is________________?

A. rectangular section
B. circular section
C. standard form of egg shaped sewer
D. modified egg shaped section

A. parasitic
B. saprophytic
C. pathogenic
D. anaerobic

## Laying of sewers is usually done with the help of________________?

A. a theodolite
B. a compass
C. sight rails and boning rods
D. a plane table

A. 10 ppm
B. 20 ppm
C. 30 ppm
D. 50 ppm

## Orthotolidine test is used for determination of________________?

A. dissolved oxygen
B. residual chlorine
C. biochemical oxygen demand
D. dose of coagulant

## Residual chlorine in water is determined by________________?

A. starch iodide method
B. orthotolidine method
C. both (A) and (B)
D. none of the above

A. 24 – 48 hours
B. 10-12 days
C. 2-3 months
D. 1-2 year

A. 10 to 25
B. 50
C. 75
D. 100

## For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be________________?

A. separate system
B. combined system
C. partially combined system
D. partially separate system

## Facultative bacteria are able to work in________________?

A. presence of oxygen only
B. absence of oxygen only
C. presence as well as in absence of oxygen
D. presence of water

## Engineering ethics refers to_______________?

A. The rules and standards given by an institution for Engineering practice
B. The rules and regulation relating to obligations and rights of others
C. The professional regulation
D. The rules and standards which govern the conduct of Engineers as professional Engineers

A. P 62.44
B. P44.55
C. P54.66
D. P37.56

## Activated carbon is used for_____________?

A. disinfection
B. removing hardness
C. removing odours
D. removing corrosiveness

## Air binding phenomena in rapid sand filters occur due to_________________?

B. mud ball formation
C. higher turbidity in the effluent
D. low temperature

## An egg shaped section of sewer________________?

A. is economical than circular section
B. provides self cleansing velocity at low discharges
C. is more stable than circular section
D. is easy to construct

A. 2 to 4
B. 4 to 6
C. 6 to 8
D. 8 to 10

## Alkalinity in water is expressed as milli-grams per litre in terms of equivalent_______________?

A. calcium carbonate
B. magnesium carbonate
C. sodium carbonate
D. calcium hydroxide

## Which of these gives the lowest effective rate of interest ?

A. 12.35 % compounded annually
B. 11.90 % compounded annually
C. 12.20 % compounded annually
D. 11.60 % compounded annually

## Which is NOT an essential element of an ordinary annuity ?

A. The amounts of all payments are equal.
B. The payments are made at equal interval of time.
C. The first payment is made at the beginning of the first period.
D. Compound interest is paid on all amounts in the annuity.

## What type of bond where the corporation’s owner name are recorded and the interest is paid periodically to the owners with their asking for it ?

A. Preferred bond
B. Registered bond
C. Incorporators bond
D. Callable bond

A. Mortgage bond
B. Joint bond
C. Tie-up bond
D. Trust bond

## What refers to the value of an intangible item which arises from the exclusive right of a company to provide a specified product and service in a certain region of the country ?

A. Company value
B. Going value
C. Goodwill value
D. Franchise value