Description : In distribution pipes, air valves are provided at (A) Lower points (B) Junction points (C) Higher points (D) Anywhere
Last Answer : (C) Higher points
Description : The valves provided at low points of pipes to drain off water quickly under gravity, are called (A) Blow off valves (B) Drain valves (C) Sewer valves (D) All the above
Last Answer : (D) All the above
Description : Sluice valves are fitted in a distribution system (A) Along straight length of pipes at suitable intervals (B) At the junctions of the pipes (C) At the branching off points of sub-mains (D) All the above
Description : Air valves are generally provided in pressure pipes of water supply (A) At pipe junctions (B) At summits (C) At low points (D) Near service pipes
Last Answer : (B) At summits
Description : Pressure relief valves are provided in water mains (A) To reduce the pressure (B) At low points (C) Upstream of sluice (D) All the above
Description : Pick up the incorrect statement regarding a master trap from the following: (A) It is provided in between the lower end of the house drain and the street sewer (B) It is provided a cleaning eye at the ... fitted at the top of the inlet pipe (D) The water seal is less than that of ordinary traps
Last Answer : (D) The water seal is less than that of ordinary traps
Description : Sluice valves in main water supplies (A) Are used to regulate the flow of water in pipes (B) Are spaced about 5 km apart (C) Are usually placed at the summits (D) All the above
Description : Will it kill the pipes if I pour boiling-hot liquid down the drain?
Last Answer : I guess it depends on what you are looking to clear in the way of a clog. Acid (vinegar) can attack the metal of the pipe. But the problem is that it would never touch the pipe at least not in ... calcium or iron deposits off the pipes, the vinegar will do great. Other than that, I'd go with Drano.
Description : Is sulfuric acid safe to clean old cast iron drain pipes?
Last Answer : I'm not sure, I believe so though.
Description : Pick up the incorrect statement from the following: (A) Tresguet did not provide the top camber for the drainage of surface water (B) Tresguet provided the top camber for the drainage of surface ... (D) Macadam provided a camber to the formation at the dug-up state, to drain percolated water
Last Answer : Answer: Option A
Description : Along a hill road, a side drain is provided on (A) Outer side of a spur curve (B) Outer side of a re-entrant curve (C) Outer side of both (a) and (b) (D) Inner side of both (a) and (b)
Last Answer : Answer: Option D
Description : Intermediate catch water drains are provided only, if (A) Catchment area of the watershed above road is large (B) Intensity of rainfall is heavy (C) Single catch water drain is inadequate (D) All the above
Description : The drain which is provided parallel to roadway to intercept and divert the water from hill slopes is known as (A) Sloping drain (B) Catch-water drain (C) Side drain (D) Cross drain
Last Answer : Answer: Option B
Description : Pick up the correct statement from the following: (A) In a gully trap, a water seal of 6 to 7.5 cm is provided (B) The gully trap collects waste water from the kitchen, sink, wash basins ... the sullage drain from the main drainage system (D) The grating provided over gully traps is 23 cm square
Last Answer : (B) The gully trap collects waste water from the kitchen, sink, wash basins, etc.
Description : 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
Description : Pick up the incorrect statement from the following: (A) The retaining wall should be structurally capable to resist the applied earth pressure (B) The section of the retaining wall should be so ... off water from the earth retained, weep holes are provided near the top of the retaining wall
Description : Weep holes are provided in retaining and breast walls (A) To drain off the water from the filling (B) To ventilate the stone masonry (C) To add architectural beauty (D) To increase compaction of the earth retained
Description : Pick up the correct statement from the following: (A) Construction joints in columns are provided a few cm below the junction of beam (B) Construction joints in columns are provided at the bottom ... (C) Construction joints in beams and slabs are provided within middle third (D) All the above
Description : For a city developed haphazardly, the layout of distribution pipes preferred to, is (A) Ring system (B) Radial system (C) Grid iron system (D) Dead end system
Last Answer : (D) Dead end system
Description : The type of pipe commonly used in water supply distribution schemes, is (A) R.C.C. pipes (B) Hume pipes (C) Cast iron pipes (D) G.I. pipes
Last Answer : (C) Cast iron pipes
Description : In a well planned city, the layout of distribution pipes generally adopted, is (A) Grid-iron system (B) Interlaced system (C) Reticulation system (D) All the above
Description : Service connections to consumers houses, are generally provided with (A) Copper pipes (B) Hume pipes (C) Galvanised iron pipes (D) P.V.C. pipe
Last Answer : (C) Galvanised iron pipes
Description : At a road junction, 16 cross conflict points are severe, if (A) Both are one-way roads (B) Both are two-way roads (C) One is two-way road and other is one-way road (D) None of these
Description : At a road junction, 7 cross conflict points are severe if (A) Both are one-way roads (B) Both are two-way roads (C) One is two-way road and other is one-way road (D) None of these
Last Answer : Answer: Option C
Description : Barometer is used to measure (A) Velocity of liquid (B) Atmospheric pressure (C) Pressure in pipes and channels (D) Difference of pressure between two points in a pipe
Description : Manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points
Description : A differential manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe
Description : A manometer is used to measure (A) Atmospheric pressure (B) Pressure in pipes and channels (C) Pressure in Venturimeter (D) Difference of pressures between two points in a pipe
Description : Barometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points
Description : Differential manometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points
Description : Why non-return valves are provided in the steam extraction lines?
Last Answer : Non-return valves are provided because when the turbine trips there will be an instant drop in pressure inside the turbine. But there will be steam in feed water heaters, which is at high pressure ... . So non-return valves are provided in steam extraction lines to prevent over speeding of turbine.
Description : Foot valves provided in pumps are __________ valves. (A) Relief (B) Three/four way (C) Pressure reducing (D) Directional contro
Last Answer : (D) Directional control
Description : Foot valves are provided in the suction line of a centrifugal pump to (A) Avoid priming, every time we start the pump (B) Remove the contaminant present in the liquid (C) Minimise the fluctuation in discharge (D) Control the liquid discharge
Last Answer : (A) Avoid priming, every time we start the pump
Description : If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is A. 100 cm B. 90 cm C. 80 cm D. 50 cm
Last Answer : ANS: A
Description : Blow off cock is provided in steam boiler to (A) Guard the boiler in case of abnormal rise in steam pressure (B) Drain out water and sludge during its repair (C) Regulate the supply of water in boiler (D) Put out the fire in the furnace when the water level in the boiler falls to unsafe limit
Last Answer : (B) Drain out water and sludge during its repair
Description : Line losses in a distribution circuit are kept to a minimum by __________. A. adding rubber insulation conductors to the circuit B. using higher current and lower voltage C. increasing the number of thermal relays in the circuit D. using higher voltage and lower current
Last Answer : Answer: D
Description : Time of concentration (A) Is the time taken, for precipitation (B) Duration of rainfall (C) Time taken for all the ran off to reach the drain (D) Time taken for the storm water to travel from the most remote point to the drain
Last Answer : (D) Time taken for the storm water to travel from the most remote point to the drain
Description : A manhole is generally provided at each A. Bend B. Junction C. Change of gradient D. All the above
Last Answer : ANS: D
Description : From distribution main of 50 mm size, number of service pipes of 15 mm size can be taken off are ------ a) 6 b)10 c) 12 e):20*
Last Answer : e):20*
Description : Distribution of wash water is provided in (A) Sedimentation tank (B) Slow sand filter (C) Rapid gravity filter (D) All the above
Last Answer : (C) Rapid gravity filter
Description : Distribution reinforcement in a simply supported slab, is provided to distribute (A) Load (B) Temperature stress (C) Shrinkage stress (D) All the above
Description : For sewers, inverted siphon is provided for A. One pipe B. Two pipes C. Three pipes D. Four pipes
Last Answer : ANS: C
Description : Pick up the in-correct statement from the following: A. Manholes are provided in sewer pipes at suitable intervals B. Catch basins are generally provided in sewers for carrying drainage discharge C. Inlets are generally provided in all sewers D. None of these
Description : Vent pipes are provided in a condenser to (A) Remove non-condensable gases (B) Purge the condenser (C) Facilitate easy cleaning of tubes (D) None of these
Last Answer : (A) Remove non-condensable gases
Description : If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is (A) 1°43' 08" (B) 1°43' 18" (C) 1°43' 28" (D) 1°43' 38"
Last Answer : (C) 1°43' 28"
Description : Transition curves are introduced at either end of a circular curve, to obtain (A) Gradually decrease of curvature from zero at the tangent point to the specified quantity at the junction of the ... specified amount at the junction of the transition curve with main curve (D) None of these
Last Answer : (B) Gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve
Description : If the radius of a main curve is 300 m and length of the transition curve is 100 m, the angle with tangent to locate the junction point, is (A) 1° 11' (B) 2° 11' (C) 3° 11' (D) 4° 11'
Description : Assertion : Current between two points in an electrical always flows from higher potential to lower potential. Reason : During charging of a battery c
Last Answer : Assertion : Current between two points in an electrical always flows from higher potential to lower ... . If both Assertion and Reason are false.
Description : Primary alcohols have boiling points that are _____________ the corresponding aldehydes. (a) Lower than (b) Higher than (c) About the same
Last Answer : Higher than
Description : Which statements about alkenes and alkanes of corresponding chain lengths is true? (I) Alkenes have slightly lower melting points than alkanes (II) Alkenes have slightly higher melting points than alkanes (III) Alkenes have higher boiling ... (a) I and III (b) II and IV (c) I and IV (d) II and III
Last Answer : I and III