Description : Which one of the following contains maximum percentage of carbon? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed steel
Last Answer : (1) Cast iron Explanation: Cast Iron is a hard, brittle, nonmalleable iron-carbon alloy, cast into shape, containing 2 to 4.5 percent carbon. Steels contain less than 2% and usually less than 1% carbon, ... percent carbon. Wrought iron is an iron alloy with very low carbon (0.04 to 0.08%) content.
Description : Which one of the following contains maximum percentage of carbon ? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed steel
Last Answer : Cast iron
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 : Guitar and Tool Gurus: Can you help me find similar sized saws?
Last Answer : Look at Micro-Mark They have saw blades down to 0.10” !!! I’ve purchased small drills from them and they work great.
Description : Saws sing it, We snore it, Bees drone it; And one alone ends the alphabet. What is it? -Riddles
Last Answer : Zzzzzzzz.
Description : Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical ... /generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers
Last Answer : (D) High frequency transformers
Description : is a circular concave revolving steel plate using for cutting and inverting the soil. a. Gang bolt. c. Disc b. Bearing d. None
Last Answer : Bearing
Description : plate used for cutting a inverting the soil. i. Cooper. c) iron ii. Aluminium. d) steel
Last Answer : steel
Description : Vanadium steel is generally used for (A) Railway switches and crossing (B) Bearing balls (C) Magnets (D) Axles and spring
Last Answer : Answer: Option D
Description : Statement -1Wrought iron in more malleable and ducitlle than steel. Statement -2: It contains slightly less percentage of carbon.
Last Answer : Statement -1Wrought iron in more malleable and ducitlle than steel. Statement -2: It contains slightly less percentage of carbon.
Description : The steel mainly contains how much percentage of carbon a) 0.70 to 0.80% b) to 0.3 % c) 0.5 to 0.1 %
Last Answer : 0.70 to 0.80%
Description : Hammers and railway rails are normally made of (A) Mild steel (B) Dead mild steel (C) Medium carbon steel (D) High carbon stee
Last Answer : (D) High carbon stee
Description : Highest cutting speed is achieved by the __________ tool material. (A) High speed steel (B) Carbide (C) Cast alloy (D) Plain carbon steel
Last Answer : (B) Carbide
Description : Which of the following accounts for maximum energy loss in a boiler? (A) Flue gases (B) Ash content in the fuel (C) Incomplete combustion (D) Unburnt carbon in flue gases
Last Answer : (A) Flue gases
Description : Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm. (A) 10 (B) 20 (C) 30 (D) 40
Last Answer : (D) 40
Description : A railway wagon moving with a speed of 1.5m/s is brought to rest by bumper consisting of two springs. Mass of wagon is 100kg. The springs are compressed by 125mm. Calculate the maximum force acting on each spring. a) 1200N b) 1500N c) 1800N d) 2000N
Last Answer : c) 1800N
Description : The place where a railway line and a road cross each other at the same level, is known as A. Level Crossing B. Cross over C. Rail Junction D. Road Junction
Last Answer : A [Level Crossing] Explanation: A level crossing (also called a grade crossing, a railway crossing, or a railroad crossing) is a place where a railway line and a road meet each other on the same level.
Description : ‘Swachh Rail Swachh Bharat’ Abhiyan to ensure the standard of cleanliness was launched by which Railway minister? A. Piyush Goya B. Mamata Banerjee C. Suresh Prabhu D. Lalu Prasad Yadav
Last Answer : C [Suresh Prabhu] Explanation: Swachh Rail Swachh Bharat Abhiyan was launched by railway minister Suresh prabhu in the railway budget for fiscal year 2015-16. It aims at ensuring high standard of cleanliness as utmost priority for Indian Railways.
Description : Where is head quarter of Indian Railway RAIL BHAWAN situated? A. Kolkata B. New Delhi C. Patna D. Mumbai
Last Answer : B [New Delhi] Explanation: Rail Bhavan is the headquarters of the Indian Railways. It is located at 1, Raisina Road, New Delhi, near the Sansad Bhavan (Parliament House).
Description : The service responsible for the carriage of mails by rail, road, river and air and for the collection and distribution of mails received form Post offices by mail offices and section a) Army postal service b) Mobile post office service c) Railway Mail Service d) None of the above
Last Answer : c) Railway Mail Service
Description : A new railway line is required to be constructed beaus’ of following reasons (a) Strategic and political considerations (b) Development of backward area (c) To shorten existing rail link (d) Any of them*
Last Answer : d) Any of them*
Description : The train runs faster on BG than on MG rail because its speed is directly proportional to a) Weight of the train* b) Gauge width c)Policy of Railway Board d) Length of the train
Last Answer : a) Weight of the train*
Description : Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%? (A) Small punches, broaches reamers and springs (B) Cutlery, screws, rivets and files (C) ... lathe tools and razors (D) Forgings like can shaft, structural steel plate, threading dies and drawing dies
Last Answer : (A) Small punches, broaches reamers and springs
Description : Height of platform of a flag station in cutting above rail level is (a) Same height as Rail level (b) 305 mm above rail level (c) 455 mm above rail level (d) 840mm above rail level*
Last Answer : (d) 840mm above rail level*
Description : Renewal of slack rivets should be taken up in steel girder bridges: a) All rivets which are hand loose or which have lost 50% of their head by corrosion. b) All hammer loose rivets where corrosion has set ... . c) In end stiffeners when the percentage of hammer loose rivets is >30% d) All the above*
Last Answer : d) All the above*
Description : A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2 ), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is (A) 25 N (B) 30 N (C) 35 N (D) 40 N
Last Answer : (C) 35 N
Description : Coke compared to the coal from which it has been made, contains (A) Less volatile matter (B) More carbon (C) Greater percentage of ash (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : A spring of stiffness 100 N/mm used in a spring-loaded safety valve of diameter 20 mm on a boiler with the pressure inside the boiler equal to 1 MPa should be initially compressed by a. 5mm b. 3.14 mm c. 2mm d. 6.28 mm
Last Answer : b. 3.14 mm
Description : Addition of 2% nickel in steel makes it suitable for making (A) Electronic valves (B) Boiler plates, rivets etc. (C) Turbine blades (D) Connecting rod
Last Answer : (B) Boiler plates, rivets etc.
Description : Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes
Last Answer : (B) Powerful magnets
Description : Carbon percentage in medium carbon steel is around (A) 0.1 to 0.35 (B) 0.35 to 0.5 (C) 0.8 to 1.4 (D) 1 to 1. 5
Last Answer : (B) 0.35 to 0.5
Description : Which of the following has the least carbon percentage? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) White cast iron
Last Answer : (C) Wrought iron
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 : With increase in the carbon percentage in the steel, its (A) Hardness increases (B) Ductility reduces (C) Tensile strength increases (D) All (A), (B) and (C)
Description : Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel. (A) Wrought (B) Tool (C) Alloy (D) Plain carbon
Last Answer : (D) Plain carbon
Description : 1. Which of the statements with regard to formation is correct (1) One of the Functions of the formation is to facilitate drainage (2) Width of bank for double railway line is 12.155 meters (3) Width of cutting for double railway track is 11. ... a) 2, 3, 5 b) 3, 4, 5* c) 2, 3, 4 d) 2, 4, 5
Last Answer : b) 3, 4, 5*
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 : High carbon steel contains more than __________ percent carbon. (A) 0.5 (B) 2.2 (C) 2.5 (D) 2.8
Last Answer : (A) 0.5
Description : Which of the following ores contains maximum percentage of uranium? (A) Carnotite (B) Thorium (C) Rescolite (D) Pitchblende
Last Answer : (D) Pitchblende
Description : German silver used for decorative purposes contains maximum percentage of (A) Silver (B) Copper (C) Zinc (D) Nickel
Last Answer : (B) Copper
Description : Ganister contains maximum percentage of (A) FeO (B) SiO2 (C) MgO
Last Answer : (B) SiO2
Description : The maximum percentage of chromium that can be added to steel is about (A) 12 (B) 18 (C) 24 (D) 30
Last Answer : (B) 18
Description : Which of the following alloying elements is present in maximum percentage in high speed steel? (A) Molybdenum (B) Chromium (C) Tungsten (D) Vanadium
Last Answer : (C) Tungsten
Last Answer : (A) Molybdenum
Description : Determine the maximum shearing stress and elongation in a helical steel spring composed of 20 turns of 20-mm-diameter wire on a mean radius of 90 mm when the spring is supporting a load of 1.5 kN. and G = 83 GPa. a. 200 mm b. 105.4 mm c. 150 mm d. 250 mm
Last Answer : b. 105.4 mm
Description : How much rail ends are cleaned with Kerosene Oil and steel wire brush? (i) Minimum 100 mm both side (ii) Minimum 50 mm both side.* (iii) No need (iv) As decided by site supervisor
Last Answer : (ii) Minimum 50 mm both side.*
Description : Ultrasonic Pulse Velocity test is meant for a) Identifying the integrity of concrete* b) Finding the strength of concrete c) To know the crack in steel structure d) To know the flaw in rail
Last Answer : a) Identifying the integrity of concrete*
Description : An oil fired boiler is retrofitted to fire coconut shell chips. Boiler thermal efficiency drops from 82% to 70%. What will be the percentage change in energy consumption to generate the same output a) 12% increase b) 14.6% increase c) 17.1% decrease d) 17.1% increase
Last Answer : d) 17.1% increase
Description : Which one of the following types of coal contains a higher percentage of carbon than the rest? (1) Bituminous coal (2) Lignite (3) Peat (4) Anthracite
Last Answer : (4) Anthracite Explanation: Anthracite is thecoal that gives the most energy and the least pollution (it produces lots of CO2). It is the ideal fuel for power station.
Last Answer : : 0.15 - 1.5%