M10 index of coke indicates its
(A) Compressive strength
(B) Hardness
(C) Abrasion resistance
(D) Impact strength

1 Answer

Answer :

Option C

Related questions

Description : M10 index of coke indicates its (A) Compressive strength (B) Hardness (C) Abrasion resistance (D) Impact strength Answer: Option C

Last Answer : Option C

Description : Pick out the wrong statement. (A) Cokes of high reactivity are obtained from weakly coking coals (B) Cokes of high reactivity are obtained from strongly coking coals (C) Reactivity of coke is inversely proportional to its absolute density (D) Abrasion index of the coke is a measure of its hardness

Last Answer : (B) Cokes of high reactivity are obtained from strongly coking coals

Description : Increase in ash content of blast furnace coke (A) Reduces its consumption in the furnace (B) Increases its consumption in the furnace (C) Does not affect its consumption in the furnace (D) Decreases its hardness and abrasion resistance

Last Answer : (B) Increases its consumption in the furnace

Description : Higher percentage of ash in coal meant for the production of metallurgical grade coke (A) Decreases the hardness of coke (B) Decreases the abrasion resistance of coke (C) Causes brittleness in steel (D) None of these

Last Answer : (D) None of these

Description : Desirable "Micum Index" values of metallurgical coke are (A) M40 > 78% and M10 < 10% (B) M40 > 4% and M10 < 80% (C) M40 > 10% and M10 < 78% (D) M40 > 98% and M10 < 2%

Last Answer : (A) M40 > 78% and M10 < 10%

Description : The resistance of an aggregates to compressive forces is known as (a) Crushing value (b) Impact value (c)Abrasion value (d) None of these

Last Answer : (a) Crushing value

Description : High ash containing coke (A) Produces more slag when used in the blast furnace (B) Has poor strength and abrasion resistance (C) Is desirable in producer gas manufacture (D) None of these

Last Answer : (A) Produces more slag when used in the blast furnace

Description : "Micum Index" of a coke is a measure of its (A) Reactivity (B) Porosity (C) Bulk density (D) Hardness & strength

Last Answer : (D) Hardness & strength

Description : Log Angles machine is used to test the aggregate for (A) Crushing strength (B) Impact value (C) Abrasion resistance (D) Water absorption

Last Answer : Answer: Option C

Description : Los Angles machine is used to perform (a) Crushing strength (b) Impact test (c) Water absorption (d) Abrasion resistance test

Last Answer : (d) Abrasion resistance test

Description : Abrasion index of blast furnace coke should be around __________ percent. (A) 20 (B) 35 (C) 55 (D) 80

Last Answer : (D) 80

Description : Nylon-6 as compared to nylon 66 has lower (A) Abrasion resistance (B) Thermal stability (C) Adhesion to rubber (D) Hardness

Last Answer : (A) Abrasion resistance

Description : Nylon-6 as compared to Nylon-66 is having higher (A) Hardness (B) Abrasion/resistance (C) Melting point (D) None of these

Last Answer : (D) None of these

Description : Non-ferrous alloys used for making cutting tools need not have high (A) Abrasion resistance (B) Toughness (C) Red hardness (D) Cutting speed

Last Answer : (C) Red hardness

Description : The addition of antimony in tin-based alloys improves its (A) Rupture strength and hot hardness (B) Impact strength and bonding strength (C) Deformation resistance (D) Wear resistance

Last Answer : (C) Deformation resistance

Description : Which of the following tests measures the toughness of road aggregates? (A) Crushing strength test (B) Abrasion test (C) Impact test (D) Shape test

Last Answer : Answer: Option C

Description : Los Angeles testing machine is used to conduct (A) Abrasion test (B) Impact test (C) Attrition test (D) Crushing strength test

Last Answer : Answer: Option A

Description : Critical Air Blast (CAB) value of coke is a direct measure of its (A) Reactivity (B) Hardness (C) Strength (D) None of these

Last Answer : (A) Reactivity

Description : A good metallurgical coke should have very low (A) Sulphur & phosphorous content (B) Porosity (C) Fusion point of its ash (D) Hardness & strength

Last Answer : (A) Sulphur & phosphorous content

Description : Smith's test of stones is performed to find out (A) The presence of soluble matter of stone (B) The compressive strength of the stone (C) The hardness of the stone (D) The toughness of the stone

Last Answer : Answer: Option A

Description : Pick out the wrong statement. (A) Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal (B) Ammonia is recovered in the form of ammonium sulphate in direct ... indicates poor caking properties of coal (D) Wash oil is used for scrubbing Benzol from coke oven gas

Last Answer : (C) A high swelling index number of coking coal indicates poor caking properties of coal

Description : Nylon-66 compared to nylon-6 has (A) Lower melting point (B) More abrasion resistant properties (C) Higher hardness (D) All (A), (B) and (C)

Last Answer : (C) Higher hardness

Description : The resistance of an aggregates to wear is known as (a) Shear value (b) Crushing value (c)Abrasion value (d) Impact value

Last Answer : (c)Abrasion value

Description : Distortion or change in shape of a cast partial denture clasp during its clinical use probably indicates that the: A. Ductility was too low B. Hardness was too great C. Ultimate tensile strength was too low D. Tension temperature was too high E. Elastic limit was exceeded

Last Answer : E. Elastic limit was exceeded

Description : In cold working of metal as compared to its hot working (A) Cracks and blow holes are eliminated (B) Ductility and impact strength improves (C) Appreciable strain hardening is produced (D) Yield stress, hardness and fatigue strength is not at all affected

Last Answer : (C) Appreciable strain hardening is produced

Description : With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected. (A) Impact strength (B) Percent elongation (C) Hardness (D) Both 'b' & 'c'

Last Answer : (A) Impact strength

Description : Shatter index of the coke is a measure of its (A) Strength (B) Bulk density (C) Reactivity (D) None of these

Last Answer : (A) Strength

Description : Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Last Answer : (A) Consistency

Description : Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value

Last Answer : (A) Consistency

Description : Slump test of concrete is a measure of its [ A ] Consistency [ B ] Compressive strength [ C ] Tensile strength [ D ] Impact value

Last Answer : [ A ] Consistency

Description : Define Impact strength and Compressive strength.

Last Answer : Definition: Impact strength - The resistance of a material to fracture by a blow , expressed in terms of the amount of energy absorbed before fracture. The impact strength is ... the maximum compressive stress that a material can sustain without fracture/failure , under gradually applied load.

Description : Grinding characteristic of a material is given by its (A) HGI (B) Angle of repose (C) Shatter index (D) Abrasion index

Last Answer : (A) HGI

Description : Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its (A) Corrosion resistance (B) Tensile strength (C) Machinability (D) Compressive strength

Last Answer : (C) Machinability

Description : Wrought iron is having very high (A) Hardness (B) Strength (C) Corrosion resistance (D) Susceptibility to changes in its properties by heat treatment

Last Answer : (C) Corrosion resistance

Description : Cast iron has very high (A) Compressive strength (B) Ductility (C) Shock resistance (D) Resistance to brittleness

Last Answer : (A) Compressive strength

Description : Babbitt lining is used on brass/bronze bearings to increase the (A) Antifriction properties (B) Compressive strength (C) Bearing resistance

Last Answer : Option D

Description : Shock resisting steels should possess high (A) Hardness (B) Toughness (C) Tensile strength (D) Wear resistance

Last Answer : (B) Toughness

Description : _______ property of a material is determined by the Herbert Pendulum device. (A) Hardness (B) Tensile (C) Toughness (D) Compressive

Last Answer : (A) Hardness

Description : Pick up the correct statement from the following: (A) In soils, the flow index indicates variation in shear strength with water content (B) Liquid limit minus plastic limit, is known as plasticity ... Plastic limit minus shrinkage limit, is known as shrinkage index of the soil (D) All the above

Last Answer : Answer: Option D

Description : High ash coals (A) Are soft & friable (poor strength and size stability) (B) Require longer time of carbonisation as ash offers resistance to heat transfer (C) Produce larger quantity of coke oven gas (D) None of these

Last Answer : (A) Are soft & friable (poor strength and size stability)

Description : Presence of manganese in alloy steel improves its (A) Corrosion resistance (B) Cutting ability (C) Abrasion resistance & toughness (D) Elasticity & creep resistance

Last Answer : (C) Abrasion resistance & toughness

Description : High copper amalgam lasts longer than low copper amalgam because of:**  A. Increased compressive strength  B. Increased corrosion resistance  C. High creep  D. Increased tensile strength  E. Decreased setting expansion 

Last Answer : A. Increased compressive strength 

Description : Pick up the correct statement from the following: (A) Catalysts are added to assist and accelerate the hardening of resin (B) The fillers are inert materials and they impart strength and hardness (C) Fibrous fillers increase thermal resistance (D) All the above

Last Answer : Answer: Option D

Description : Weld decay will cause which of the following problems? a) A reduced resistance to corrosion b) a lower tensile strength c) The toughness is reduced d) The hardness will increase

Last Answer : a) A reduced resistance to corrosion

Description : Gray King Assay and Swelling Index of a coal is a measure of its (A) Swelling characteristics (B) Abradability (C) Agglutinating properties (D) Resistance to impact breakage

Last Answer : (A) Swelling characteristics

Description : White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is (A) Tar (B) Coke oven gas (C) Pitch (D) Pulverised coke

Last Answer : (B) Coke oven gas

Description : Notched bar test is used for testing the __________ of a material. (A) Impact strength (B) Endurance limit (C) Machinability (D) Corrosion resistance

Last Answer : (A) Impact strength

Description : Can't see the Samsung M10 's display ?

Last Answer : Display problem on your phone. The price can be 800-1500 rupees.

Description : M10 grade of concrete approximates (A) 1 : 3 : 6 mix (B) 1 : 1 : 2 mix (C) 1 : 2 : 4 mix (D) 1 : 1.5 : 3 mix

Last Answer : Answer: Option A

Description : Which of the following grade is not recommended by IS 456-1978? (a) M10 (b) M20 (c) M40 (d) M55

Last Answer : (d) M55