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 : 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 : Manholes are less common in (A) Cast iron pipes (B) Steel pipes (C) Hume steel pipes (D) R.C.C. pipes
Last Answer : (A) Cast iron pipes
Description : Q No: 78 Hume steel pipes are A. Steel pipes B. Steel shell coated from inside with cement mortar C. Steel shell coated from outside with cement mortar D. Both B. and C.
Last Answer : ANS: D
Description : The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v w = Specific weight of the flowing liquid) (A) 4 (B) 8 (C) 16 (D) 32
Last Answer : Answer: Option D
Description : House connections to the laterals is generally made by A. R.C.C. B. P.C.C. C. Cast iron D. Glazed stonewares
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 correct statement from the following: (A) Copper pipes are highly resistant to acidic and alkaline water (B) Wrought iron pipes are lighter than cast iron pipes (C) Wrought iron pipes corrode quickly and are less durable (D) All the above
Last Answer : (D) All the above
Description : An inverted siphon is designed generally for A. One pipe B. Two pipes C. Three pipes D. Four pipes
Description : Cast iron pipes are generally preferred to, because (A) Of moderate cost (B) Of ease to join (C) Of longer life (D) All the above
Description : The type of joint generally used in cast iron pipes, is (A) Socket and spigot joint (B) Flanged joint (C) Dresser coupling joint (D) All the above
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 : Air inlet valve in water mains, is generally provided at (A) Summit of the pipe (B) Upstream of sluice valve (C) Downstream of sluice valve (D) Both (a) and (c) of above
Last Answer : (D) Both (a) and (c) of above
Description : Which of the following materials is used for overhead transmission lines ? (a) Steel cored aluminium (b) Galvanised steel (c) Cadmium copper (d) Any of the above
Last Answer : (d) Any of the above
Description : P.V.C. pipes can withstand pressure bead of water upto (A) 25 m (B) 50 m (C) 75 m (D) 100 m
Last Answer : (D) 100 m
Description : Galvanised steel wire is generally used as (a) stay wire (b) earth wire (c) structural components (d) all of the above
Last Answer : (d) all of the above
Description : Two pipes P and Q can fill a cistern in 15 minutes and 20 minutes respectively. Both are opened together, but at the end of 5 minutes, the pipe P is t
Last Answer : Two pipes P and Q can fill a cistern in 15 minutes and 20 minutes respectively. Both are opened ... will the pipe Q take to fill the cistern ?
Description : Pipes P, Q and R which fill the tank together in 12 hours are opened for 2hours after which pipe R was closed. Find the number of hours taken by pipe R to fill the tank if the remaining tank is filled in 14 hours. A) 16 B) 14 C) 20 D) 42
Last Answer : D 1/P + 1/Q + 1/R = 1/12 Now given that first all open for 2hours, then R closed and P+Q completes in 14 hours, so (1/P + 1/Q + 1/R) *2 + (1/P + 1/Q)*14 = 1 Put 1/P + 1/Q = 1/12 – 1/R (1/12 – 1/R + 1/R) *2 + (1/12 – 1/R)*14 = 1 1/6+ 14/12 – 14/R = 1 Solve, R = 42
Description : A cistern is filled in 15 hours by three pipes P, Q and R. The pipe R is thrice as fast as Q and Q is thrice as fast as P. How much time will pipe P alone take to fill the tank? A) 120 hrs B) 195 hrs C) 135 hrs D) Cannot be determined
Last Answer : B Suppose pipe P alone takes x hours to fill the tank. Then, pipes Q and R will take x/3 and x/9hours respectively to fill the tank. 1/x + 3/x + 9/x = 1/15 13/x = 1/15 => x = 195 hrs.
Description : Two pipe P & Q fill a tab in 5 hrs and 20 hrs respectively. If both the pipes are open then due to the leakage, it took 30mins more to fill the tab. If the tab is full, how long will it take for the leakage alone to empty the tank? A) 28 B) 24 C) 36 D) 12
Last Answer : C Part filled by(P+Q) in 1 hr = 1/5 + 1/20 = ¼ So P & Q together can fill the tank in 4 hrs. Work done by the leak in 1 hr = 1 / 4 - 2/9 Leak will empty the tank in 36 hrs.
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 : Galvanised iron sheets have a coating of which metal? -General Knowledge
Last Answer : The answer is 'Zinc'
Last Answer : answer:
Description : Galvanised iron is made by coating iron with – (1) Zinc (2) Nickel (3) Chromium (4) Sulphur
Last Answer : (1) Zinc Explanation: Galvanization) is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting, Although galvanization can be done with electrochemical and electro- ... is hot-dip galvanization, in which steel parts are submerged in a bath of molten zinc.
Description : Galvanised iron sheets have a coating of which metal?
Last Answer : Zinc
Description : Plate and frame filter press is usually made of (A) Mild steel (B) Cast iron (C) Stainless steel (D) Galvanised iron
Last Answer : (B) Cast iron
Description : Phenol is not shipped in (A) Nickel lined steel tank cars (B) Galvanised or tin lined drums (C) Boxed glass carboys (D) Cast iron containers
Last Answer : (D) Cast iron containers
Description : Galvanised iron is (A) Harder (B) Protected from rusting (C) Alumina coated iron (D) None of these
Last Answer : (B) Protected from rusting
Description : Galvanised Iron sheets have a coating of------ A. Tin B. Silver C. Zinc (Answer) D. Chromium
Last Answer : C. Zinc (Answer)
Description : Galvanised Iron sheets have a coating of (1) Tin (2) Lead (3) Zinc (4) Chromium
Last Answer : (3) Zinc
Description : Galvanised iron is made by coating iron with (1) Zinc (2) Nickel (3) Chromium (4) Sulphur
Description : Which one of the following statements is not true in respect of A.O. Hume? (SSC CGL 1st Sit. 2013) (a) He founded the Indian National Congress. (b) He presided over the Congress Annual Sessions twice. (c) He was an ornithologist. (d) He was a member of the Indian Civil Service.
Last Answer : b) He presided over the Congress Annual Sessions twice.
Description : One method of testing for a reversed shunt field coil in a DC generator or motor is by connecting the field to a direct current source, at reduced field rated voltage, and test for ... placed near each field C. test lamp across adjacent fields D. copper jumper across the interpole connections
Last Answer : Answer: B
Description : Pick up the correct statement from the following: (A) Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe (B) Incrustation of the pipe reduces the discharge (C) Acidic waters cause corrosion of the pipes (D) All the above
Description : Pick up the correct statement from the following: (A) The internal pressure within a pipe, is caused due to water head and hammer pressure (B) In pressure pipes with water at rest, the pressure ... (C) Sudden closure of a valve, causes the water hammer pressure (D) All the above
Description : 14. When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe A) Yes B) No
Last Answer : A
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
Last Answer : Answer: Option B
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 : A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if (A) Length of both the pipes is same (B) Diameter of both the pipes is same (C) Loss of ... discharge of both the pipes is same (D) Loss of head and velocity of flow in both the pipes is same
Last Answer : Answer: Option C
Description : The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid (C) The flow of fluid through the pipe is suddenly brought to ... valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve
Description : Assertion : In our houses when we start switching on different light buttons, main current goes on increasing. Reason : Different connections in house
Last Answer : Assertion : In our houses when we start switching on different light buttons, main current goes on ... . If Assertion is false but Reason is true.
Description : Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint. (A) Flanged iron (B) Collar (C) Flexible (D) Expansion
Last Answer : Option B
Description : In distribution pipes, drain valves are provided at (A) Lower point (B) Higher point (C) Junction points (D) Anywhere
Last Answer : (A) Lower point
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
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 : Pick out the wrong statement. (A) Economy of a multiple effect evaporator is not influenced by the boiling point elevation (B) Two identical cubes of iron and copper will have the same heat ... in the field of refrigeration (D) Finned tube heat exchangers are suitable for heating air by steam
Last Answer : (B) Two identical cubes of iron and copper will have the same heat content under the same conditions of temperature
Description : Out of the following, the __________ pipe has the least corrosion resistance. (A) Mild steel (B) Copper (C) Cast iron (D) Wrought iron
Last Answer : D) Wrought iron
Description : Who was Mr. A.O. Hume? What was his contribution towards Indian Nationalism? -SST 10th
Last Answer : Mr. A. O. Hume was a retired British Civil Servant. He appealed to the educated Indians to work for the moral and material upliftment of their country.
Description : Name the political organisation founded by Mr. A. O. Hume. -SST 10th
Last Answer : Mr. A. O. Hume founded the Indian National Union.