Description : Dies for wire drawing are generally made of (A) Mild steel (B) Stainless steel (C) Carbides (D) High carbon stee
Last Answer : (C) Carbides
Description : Which of the following will have the highest melting point? (A) Pig iron (B) Mild steel (C) Wrought iron (D) High carbon stee
Last Answer : (C) Wrought iron
Description : Cold chisel’s hammers are made of (A) High speed steel (B) High carbon steel (C) Forged steel (D) Mild steel
Last Answer : (B) High carbon steel
Description : Cold chisel & hammers are made of (A) High speed steel (B) High carbon steel (C) Forged steel (D) Mild steel
Description : Mild steel is a/an __________ steel. (A) Low carbon (B) Medium carbon (C) High carbon (D) High alloy
Last Answer : (A) Low carbon
Description : The steel used for the manufacture of rails, is (A) Bessemer steel (B) Mild steel (C) Cast steel (D) Stainless steel
Last Answer : Answer: Option A
Description : Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making (A) Shafts (B) Flanges (C) Gears (D) Shear blades
Last Answer : (B) Flanges
Description : In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.
Last Answer : (4) accidents due to expansion in summer can be avoided. Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. ... on the tracks. The same applies in many other fields of engineering, i.e. bridge building.
Description : In a railway track, two rails are joined end to end with a gap tin between them because? A. Steel can be saved B. Accidents due to contraction in winter can be avoided C. Air gaps are necessary ... of running train D. Accidents due to expansion in summer can be avoided (Answer) E. All of these
Last Answer : D. Accidents due to expansion in summer can be avoided (Answer)
Description : In a railway track, two rails are joined end to end with a gap in between thembecause (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.
Last Answer : accidents due to expansion in summer can be avoided.
Description : In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of (A) Stainless steel (B) Mild steel (C) High speed steel (D) High carbon steel
Last Answer : (C) High speed steel
Description : Dies for wire drawing are generally made of (A) Mild steel (B) Stainless steel (C) Carbides (D) High carbon steel
Last Answer : (A) Mild steel
Description : Carbon percentage is the same in cast iron and (A) Wrought iron (B) Pig iron (C) Mild steel (D) High silicon (14%) iron
Last Answer : (B) Pig iron
Description : Which of the following has the poorest weldability? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) High-carbon steel
Last Answer : (D) High-carbon steel
Description : Mild steel is (A) A low carbon steel (0.05 to 0.3% carbon) (B) Highly resistant to corrosion (as much as stainless steel) (C) A high carbon steel (0.5 to 1.5% carbon) (D) Very poor in strength & ductility
Last Answer : (A) A low carbon steel (0.05 to 0.3% carbon)
Description : Which of the following has the highest compressive strength? (A) Wrought iron (B) Cast iron (C) Mild steel (D) High carbon steel
Last Answer : (D) High carbon steel
Description : An alloy of iron containing 4% carbon is called (A) High carbon steel (B) Wrought iron (C) Mild steel (D) None of these
Last Answer : (D) None of these
Description : Oxyacetylene reducing flame is used while carrying out welding on (A) Alloy steel (B) Grey cast iron (C) Mild steel (D) High carbon steel
Last Answer : (C) Mild steel
Last Answer : Option C
Description : Ball bearings are normally made of __________ steel. (A) High speed (B) High carbon (C) Chrome (D) Silicon
Last Answer : (C) Chrome
Description : A small gap is left at the joints of rails in a railway track to – (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant
Last Answer : (1) avoid the tracks being distorted due to seasonal temperature variation Explanation: A small gap is left at the joints of rails in a railway track to provide space for the expansion of rail pieces when the temperature rises during summer.
Description : A small gap is left at the joints of rails in a railway track to (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant
Last Answer : avoid the tracks being distorted due to seasonal temperature variation
Description : The shovel of seed drill is made up of: A. Cast iron B. Mild steel C. White metal D. Carbon steel
Last Answer : Carbon steel
Description : Mould board are usually made from a. Soft centre steel b. Hardened carbon steel c. Chilled cast iron d. Mild steel
Last Answer : a. Soft centre steel
Description : The steel generally used in R.C.C. work, is (A) Stainless (B) Mild steel (C) High carbon steel (D) High tension steel
Last Answer : Answer: Option B
Description : Select the correct statement (A) Elastic modulus of high tensile steel is nearly the same as that of mild steel (B) Elastic modulus of high tensile steel is more than that of mild steel (C) ... high carbon steel is less than that in mild steel (D) High tensile steel is cheaper than mild steel
Description : The steel used in R.C.C. work is (A) Stainless steel (B) Mild steel (C) High carbon steel (D) Wrought iron
Description : Which of the following is the purest form of iron? (A) Cast iron (B) Wrought iron (C) Mild steel (D) High carbon steel
Description : Which of the following has the least carbon percentage? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) White cast iron
Description : Which one is remelted and poured into moulds to get cast iron? (A) Wrought iron (B) Pig iron (C) Low carbon steel (D) Mild steel
Description : Solute atoms which cause yield point phenomenon in mild steel are/is (A) Aluminium (B) Boron (C) Carbon (D) Nitrogen
Last Answer : (C) Carbon
Description : In railway tracks, a small gap is left between the rails _____. A. To permit the shrinkage of metal B. To save the cost of metal C. To allow for the expansion during heat D. None of the above
Last Answer : ANSWER: C
Description : Fish plates are used in railway tracks to A. fix rails to the sleepers B. fix sleepers to the ground C. Join two rails D. join two coaches
Last Answer : C [Joint two rail] Explanation: In rail terminology, a fishplate, splice bar or joint bar is a metal bar that is bolted to the ends of two rails to join them together in a track.
Description : A gap is left between two rails of a railway track to accommodate ______ of the metal. (1) areal expansion (2) volume expansion (3) liner expansion (4) apparent expansion
Last Answer : (3) liner expansion Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. To a first approximation, the ... linear expansion coefficient". It is the fractional change in length per degree of temperature change.
Description : A gap is left between two rails of a railway track to accommodate...... of the metal. (1) areal expansion (2) volume expansion (3) liner expansion (4) apparent expansion
Last Answer : liner expansion
Description : 100% H2SO4 at 30°C can't be stored in a vessel made/lined with (A) Cast iron and high silicon iron (B) Mild steel and stainless steel (C) Aluminium, tin and rubber (D) Teflon, glass and porcelain
Last Answer : (C) Aluminium, tin and rubber
Description : Rotary driers are generally made of (A) Cast iron (B) Mild steel (C) High silicon iron (14% Si) (D) Tin lined with refractory bricks
Last Answer : (B) Mild steel
Description : The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel (B) Mild steel (C) High silicon iron (14% Si) (D) Copper
Last Answer : (A) Molybdenum stainless steel
Description : “Depending on the stee and the services available and functions rendered, urban centres and designated as town, city, -Geography
Last Answer : (i) Town (ii) City (iii) Conurbation (iv) Megalopalis (v) Million city
Description : Rails used for A T Welding shall not normally be welded? (i) 20 years old . (ii) 30 years old (iii) 40 years old (iv) 50 years old*
Last Answer : iv) 50 years old*
Description : Check rails should normally be provided where the radius is …. M or less in B.G. (a) 150m (b) 200m (c) 218m* (d) 240m
Last Answer : (c) 218m*
Description : Check rails should normally be provided where the radius is ……. M or less in B.G. (a) 150m (b) 200m (c) 208m* (d) 225m
Last Answer : (c) 208m*
Description : Ball bearings are, usually, made from (a) low carbon steel (b) high carbon steel (c) medium carbon steel (d) chrome steel
Last Answer : (d) chrome steel
Description : Percentage of carbon content in mild steel is (A) Less than 0.25 (B) Between 0.25 and 0.7 (C) Between 0.7 and 1.5 (D) Greater than 1.5
Description : Mild steel is an alloy with carbon content a)0.25%. b)5% c)10%. d)25%
Last Answer : a)0.25%.
Description : The percentage of carbon in mild steel is (A) 0.08 to 0.3 % (B) 0.5 to 1.4 % (D) 2.35 % (D) 0.5 %
Last Answer : (A) 0.08 to 0.3 %
Description : Which of the following contains maximum percentage of carbon? (A) Boiler plate steel (B) Rail steel (C) Saws for cutting steel (D) Railway spring steel
Last Answer : (C) Saws for cutting steel
Description : In case of a hammer crusher, (A) Crushing takes place by impact breaking (B) Maximum acceptable feed size is 30 cms (C) Reduction ratio can be varied by adjusting the distance from cage to hammers (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)