Description : Larger length & diameter water pipes are made by (A) Electrical resistance welding (B) Die casting (C) Semi-centrifugal casting (D) Continuous casting
Last Answer : options A
Last Answer : Option C
Description : Cast iron detachable joint is used in __________ pipes. (A) Steel (B) Cast iron (C) Asbestos cement (D) Reinforced cement concrete
Last Answer : (A) Steel
Description : Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : (C) Cast iron
Description : Lead is poured into the joints between two __________ pipes. (A) Cast iron (B) Steel (C) Concrete (D) Plastic
Last Answer : (A) Cast iron
Description : Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Description : For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel
Last Answer : (B) Cast iron
Description : The most suitable material for die casting is (A) Iron (B) Copper (C) Steel (D) Nickel
Last Answer : (B) Copper
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 : A partial denture that seats on the master cast but fails to seat correctly in the mouth is a result of, A. Contraction of the metal framework during casting B. Insufficient expansion of the investment material C. Distortion of impression D. Failure to block out unwanted undercuts
Last Answer : C. Distortion of impression
Description : __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently. (A) Collar (B) Flanged (C) Bell and Spigot (D) Expansion
Last Answer : Option B
Description : A jet engine turbine blade is normally manufactured by (A) Forging (B) Shell moulding (C) Investment casting (D) Pressure die casting
Last Answer : (C) Investment casting
Description : Pick up the correct statement from the following: (A) Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer (B) Cupola furnace is used for the manufacture of cast iron (C) Red short iron is of no value for welding purpose (D) All the above
Last Answer : Answer: Option D
Description : Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of (A) Rubber lined mild steel (B) Lead lined mild steel (C) Aluminium (D) Cast iron
Last Answer : (A) Rubber lined mild steel
Description : Semi steel' is (A) Produced by adding 10-20% steel to the cupola charge (B) Stronger than cast iron (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Caustic soda can be stored in __________ drums. (A) Steel (B) Cast iron (C) Brass (D) Gun metal
Description : Acetaldehyde is shipped in __________ drums. (A) Cast iron (B) Steel (C) Aluminium (D) Either (B) & (C)
Last Answer : (D) Either (B) & (C)
Description : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material
Description : On being hit with a hammer, __________ will readily fracture. (A) Brass (B) Mild steel (C) Cast iron (D) Lead
Last Answer : C) Cast iron
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 : What is NOT true about the tenure of the Speaker of the Lok Sabha? (a) He is no longer a Speaker if he ceases to be a member of the Lok Sabha due to any reason (b) When the Lok Sabha ... representative (d) When there's a deadlock in vote, the Speaker can cast his casting vote to break the deadlock
Last Answer : (b) When the Lok Sabha dissolves, the Speaker vacates his position simultaneously
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 wrong nominal internal diameter of cast iron (spun) pipes in mm from the following: (A) 300 (B) 400 (C) 550 (D) 650
Last Answer : (C) 550
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
Last Answer : (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 : Cast iron pipes (A) Are widely used in city water supplies (B) Resist corrosion satisfactorily (C) May last for 100 years (D) All the above
Description : The cast iron pipes for water supply system are used for (A) Durability (B) Strength (C) Easy connection (D) All the above
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 : The maximum pressure to which cast iron pipes may be subjected to, is (A) 3 kg/cm2 (B) 5 kg/cm2 (C) 7 kg/cm2 (D) 10 kg/cm
Last Answer : (C) 7 kg/cm
Description : The joint used for joining the plain ends of cast iron pipes, is (A) Flanged joint (B) Socket and spigot joint (C) Dresser coupling joint (D) Flexible joint
Last Answer : (C) Dresser coupling joint
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
Description : Cast iron is used for (A) Structural works in beams (B) Small sized water pipes (C) Columns and struts (D) None to these
Last Answer : Answer: Option C
Description : __________ iron is produced, when molten pig iron is chilled suddenly. (A) White cast (B) Grey cast (C) Wrought (D) None of these
Last Answer : (A) White cast
Description : __________ iron is produced, when molten pig iron is allowed to cool gradually. (A) White cast (B) Grey cast (C) Wrought (D) None of these
Last Answer : (B) Grey cast
Description : __________ iron is produced by the annealing of white cast iron. (A) Malleable (B) Nodular (C) Ductile (D) Grey
Last Answer : (A) Malleable
Description : State two advantages and disadvantages of centrifugal casting. Write four applications.
Last Answer : Centrifugal Casting: Advantages: 1. Relatively very light impurities move inwards towards center. So they can be removed easily thus helping in producing sound castings. 2. Gates and risers are not needed. ... making rollers. 4. Piston rings. 5. Cylinder liners. 6. Pipes of water gas sewage.
Description : Is a slush homogenous?
Last Answer : Slush is not homogeneous.
Description : Pineapple Jelly Slush
Last Answer : Ingredients 2 cups chopped pineapple 3/4 cup sugar 1/2 tsp salt 1/4 tsp pineapple essence few drops yellow colour 1 cup pineapple jelly 2 glasses water 10-12 crushed ice cube ... Blend very lightly. Pour into glasses and mix in finely crushed ice. Use wide straw for serving.
Description : Which of the following is (are) true? (A) Cast iron has poor tensile strength compared to steel (B) Failure of cast iron flywheel is sudden and total (C) Machinability of cast iron flywheel is poor compared to steel flywheel (D) All of the above
Last Answer : (D) All of the above
Description : Ammonium chloride solution is stored/ treated in __________ vessels/pipes. (A) Plain carbon steel (B) Stainless steel (C) Rubber or durmet-20 lined (D) Lead
Last Answer : (C) Rubber or durmet-20 lined
Description : Pipes for bi-cycle frames are made of __________ steel. (A) Hot rolled (B) Chrome carbon (C) Cold rolled (D) Stainless
Last Answer : (C) Cold rolled
Description : Dilute sulphuric acid is transported in __________ pipes. (A) Mild steel (B) Lead (C) Copper (D) Special alloys
Last Answer : (B) Lead
Description : Steel pipes are normally manufactured by __________ process. (A) Extrusion (B) Cold working (C) Forging (D) Electroforming
Last Answer : (A) Extrusion
Description : Steel produced from phosphatic iron is __________ in nature. (A) Malleable (B) Ductile (C) Brittle (D) Tough
Last Answer : (C) Brittle
Description : Supporting legs of a plate and frame filter is normally made of (A) Stainless steel (B) Cast iron (C) High speed steel (D) Wooden plank
Description : Balls for ball mills are never made of (A) Forged/cast steel (B) Lead (C) Cast iron (D) Alloy steel
Description : The fermenter used in the production of penicillin (by deep fermentation process) is made of (A) Glass (B) Glass lined steel (C) High silicon cast iron (D) Porcelain
Last Answer : (B) Glass lined steel
Description : SO3 is absorbed using H2SO4 in a (A) Cast iron packed tower (B) Stainless steel plate tower (C) Packed steel tower lined with acid proof bricks (D) None of these
Last Answer : (C) Packed steel tower lined with acid proof bricks
Description : Which one contains the least percentage of carbon? (A) Wrought iron (B) High speed steel (C) Cast iron (D) Pig iron
Last Answer : (A) Wrought iron
Description : The carbonating tower used in Solvay process of soda ash manufactureis made of (A) Cast iron (B) Stainless steel (C) Karbate (D) Lead lined steel