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Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength
The influence of shape of aggregate in strength and workability of concrete are given below in statements S1, S2, S3 and S4. Which of the statements are correct? S1: Rounded aggregate produces concrete with high workability and low strength. S2: Angular aggregate produces concrete with high workability and low strength. S3: Rounded aggregate produces concrete with low workability and high strength. S4: Angular aggregate produces concrete with low workability and high strength.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Iron is able to take on two crystalline forms (allotropic forms), body-centered cubic, and face-centered cubic, depending on its temperature.  B: Iron is the base metal of steel. C: Because of steel's high tensile strength and low cost, this material is best used in buildings, infrastructure, tools, ships, trains, cars, machines, electrical appliances, and weapons. D: Steel is an alloy of iron and carbon and, sometimes, other elements such as chromium.
Consider the following statements: Machine tool beds are made using grey cast iron due to 1. high tensile strength and ductility 2. high compressive strength and damping property 3. castability and low cost of production 4. machinability and low material cost Which of the above statements are correct?
Malleable cast iron is produced 1. By quick cooling of cast iron. 2. By adding magnesium to molten cast iron. 3. from white cost iron by annealing. Which of the above statements is/are correct?
Calculate ultimate moment and shear of effective span is 30m, live load is 9kn/m, dead load excluding self weight is 2kn/m, load factors for dead load is 1.4 for live load is 1.6 cube strength of concrete fcu is 50n/mm2 cube strength at transfer is fci is 35n/mm2, tensile strength of concrete Ec is 34kn/mm2 loss ratio ɳ is 0.85 and 8mm diameter high tensile strength fpu is 1500n/mm2 are available for use and the modulus of elasticity of high tensile wires is 200kn/mm2?
Cast iron generally has low tensile strength but excellent compressive strength.
Consider the following statements related to the merits of construction in structural steel: 1. Structural steel has high strength per unit weight as compared to RCC. 2. The steel members are slender or small in size as compared to RCC. 3. The steel structures are useful in the construction of tall buildings, long-span bridges, and airplane hangers. Which of the above statements are correct?
Which of the following statements are correct? 1. Steel and cast iron are multi-phase alloys. 2. Ferrite is a single phase interstitial solid solution of carbon in iron. 3. Wrought iron is a highly refined iron with a small amount of slag which gives resistance to progressive corrosion. 4. Stellite contains large amounts of metals like cobalt and tungsten resulting in high hardness. Select the correct answer using the code given below.
The compressive strength of cast iron is __________ that of its tensile strength.