18/8 steel is a/an __________ stainless steel.
(A) Austenitic
(B) Ferritic
(C) Martensitic
(D) None of these

1 Answer

Answer :

(A) Austenitic

Related questions

Description : Pick out the wrong statement. (A) Metal/alloys having hexagonal crystal lattice structure are less malleable than those having cubic crystal lattice structure (B) Metal/alloys having body centred cubic ... D) Both ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure

Last Answer : (C) Tungsten has a body centred cubic (bcc) crystal lattice structure

Description : Liquid nitrogen containers can be made from (A) Ferritic stainless steel (B) HSLA steel (C) Titanium (D) Austenitic stainless steel

Last Answer : Option B

Description : Which of the following stainless steels is non-magnetic? (A) Ferritic (B) Martenistic (C) Austenitic

Last Answer : (C) Austenitic

Description : Which of the following stainless steels is non-magnetic? (A) Ferritic (B) Martenistic (C) Austenitic (D) None of these

Last Answer : (C) Austenitic

Description : Identify the false statement (A) Martensitic steels are less susceptible to pitting corrosion than austenitic steels (B) Pitting corrosion is usually very localised (C) Hydrogen embrittlement is facilitated by tensile stress (D) Stress corrosion cracking is facilitated by tensile stress

Last Answer : (A) Martensitic steels are less susceptible to pitting corrosion than austenitic steels

Description : A steel alloy containing 36% nickel is called __________, which has a zero co-efficient of expansion. (A) Austenitic stainless steel (B) Heat resisting steel (C) Invar (D) High speed steel

Last Answer : (C) Invar

Description : Which of the following crystal structures characterises the ferritic stainless steel? (A) Face centred cubic (B) Body centred cubic (C) Simple hexagonal (D) None of these

Last Answer : (B) Body centred cubic

Description : Which of the following crystal structures characterises the austenitic stainless steel? (A) Simple hexagonal (B) Body centred cubic (C) Face centred cubic (D) None of these

Last Answer : (C) Face centred cubic

Description : Weld decay occurs in which of the following steel types? a) Carbon/Manganese b) Low alloy c) Any stainless steel d) Austenitic stainless steels

Last Answer : d) Austenitic stainless steels

Description : Ferric stainless steels compared to austenitic stainless steels (A) Have lower corrosion resistance (B) Are harder to fabricate (C) Are less ductile and hence less suitable for cold pressing (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Cementite is in the lamellar form in the __________ phase of steel. (A) Martenistic (B) Bainitic (C) Pearlitic (D) Ferritic

Last Answer : Option C

Description : Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese. (A) 1.5-2 (B) 3.5-4.5 (C) 7-9 (D) 12-14

Last Answer : (D) 12-14

Description : Austempering process results in the formation of __________ structure. (A) Martensitic (B) Bainitic (C) Carburised (D) Stressed

Last Answer : Option B

Description : Which of the following is not a good moderating material? (A) Concrete (B) Boron (C) 18/8 stainless steel (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Most suitable material for high pressure vessel operating at 500 atm. and 500° C is (A) Molybdenum stainless steel (B) 18/8 stainless steel (C) Mild steel (D) High silicon iron (14% Si)

Last Answer : (A) Molybdenum stainless steel

Description : 18/8 stainless steel means, that it contains (A) 18% chromium and 8% nickel (B) 18% chromium and 8% molybdenum (C) 18% nickel and 8% chromium (D) 18% molybdenum and 8% chromium

Last Answer : (A) 18% chromium and 8% nickel

Description : Pick out the wrong statement (A) Hardening makes the steel more brittle (B) High alloy steels contain more than 50% alloying element (C) 18/8 stainless steel is a magnetic steel (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Description : What is austenitic or headfill steel ?

Last Answer : : Steel with 1% - 1.5% carbon and 11% - 15% manganese is called austenitic or Hadfield steel . This steel is very weak and brittle in cast condition but it can be made high strength , high ... and corrosion through heat dissipation process. Then its 50 mm. About 70-80% extension in length is found.

Description : Heating of ferromagnetic materials to a temperature above Curie temperature makes it (A) Insulator for heat & electricity transmission (B) Ferritic (C) Behave like paramagnetic materials (D) Superconductor

Last Answer : Option C

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 : __________ is added in stainless steel to prevent inter crystal corrosion. (A) Vanadium (B) Niobium (C) Chromium (D) Nickel

Last Answer : (B) Niobium

Description : Generally __________ are subjected to galvanising (i.e., zinc coating). (A) Non-ferrous metals (B) Non-metals (C) Low carbon steels (D) Stainless steel

Last Answer : (C) Low carbon steels

Description : Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel

Last Answer : (C) Stainless steel

Description : Hydrochloric acid is stored in a __________ steel vessel. (A) Lead lined (B) Rubber lined (C) Glass lined (D) Stainless

Last Answer : (B) Rubber lined

Description : For storing water and acid free benzol, use a __________ vessel. (A) Steel (B) Karbate (C) Stainless steel (D) None of these

Last Answer : (A) Steel

Description : Clock pendulums are usually made of __________ steel. (A) High speed (B) Stainless (C) Heat resisting (D) None of these

Last Answer : (D) None of these

Description : Steel balls for ball bearings are generally made of __________ steel. (A) Cast (B) Stainless (C) Free carbon (D) Carbon chrome

Last Answer : (D) Carbon chrome

Description : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material

Last Answer : (C) Cast iron

Description : __________ is used as a material of construction for the blade of power saw. (A) Wrought iron (B) Stainless steel (C) Mild steel (D) High speed steel

Last Answer : Option D

Description : Most common stainless steel type 316, which is highly resistant to corrosion contains (A) 16-13% Cr 10-14% Ni and 2-3% Mo (B) 20-22% Cr, and 8-10% Ni (C) 2-4% Cr, 22% NI and 2-4% Mo (D) None of these

Last Answer : (A) 16-13% Cr 10-14% Ni and 2-3% Mo

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

Description : For MPI using the prods method which of the following statements is true: a) It may cause arc damage on the specimen material surface b) It requires fewer operators therefore is easier c) ... be used with ferritic and non-ferritic materials d) It is quicker than using a yoke type electromegnet

Last Answer : a) It may cause arc damage on the specimen material surface

Description : Which of the following is not used as a nuclear fuel cladding material? (A) Zircaloy (B) Cadmium (C) Ceramics (D) Stainless steel

Last Answer : (B) Cadmium

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

Last Answer : (B) Cast iron

Description : Which of the following is not used as a filter medium in case of corrosive liquids? (A) Nylon (B) Glass cloth (C) Metal cloth of monel or stainless steel (D) Cotton fabric

Last Answer : (D) Cotton fabric

Description : Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of (A) Bronze (B) Stainless steel (C) Flint or porcelain (D) Concrete

Last Answer : (C) Flint or porcelain

Description : Stainless steel is not corroded by (A) Hydrochloric acid (10%) (B) Nitric acid (10%) (C) Sulphuric acid (10%) (D) Saturated brine

Last Answer : (B) Nitric acid (10%)

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 : Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of (A) Nickel (B) Copper (C) Stainless steel (D) Brass

Last Answer : (B) Copper

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

Last Answer : (A) Cast iron

Description : Which of the following has the highest density and the lowest melting point? (A) Stainless steel (B) Titanium (C) Lead (D) Aluminium

Last Answer : (C) Lead

Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin

Last Answer : (D) Brass, cast iron, mild steel and tin

Description : The preferred material of construction for storage tanks for 98% sulphuric acid is (A) Aluminium (B) Lead (C) Stainless steel 316 (D) Mild steel

Last Answer : (B) Lead

Description : Plate and frame filter press is usually made of (A) Mild steel (B) Cast iron (C) Stainless steel (D) Galvanised iron

Last Answer : (B) Cast iron

Description : Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C? (A) Monel (B) Stainless steel (C) Graphite (D) Kel-F and Teflon

Last Answer : (B) Stainless steel

Description : A suitable material of construction to use with fuming sulphuric acid is (A) Carbon steel (B) Stainless steel type 304 (C) Nickel (D) Monel

Last Answer : (D) Monel

Description : In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel

Last Answer : (B) Cast iron

Description : Specify the material of construction suitable for handling concentrated HNO3 at 100°C. (A) High silicon iron, Kel-F and Teflon (B) Tin and wood (C) Silicone rubber (D) Stainless steel

Last Answer : (A) High silicon iron, Kel-F and Teflon

Description : Sulphur melting pit in the sulphuric acid plant is made of (A) Lead lined stainless steel (B) Cast iron (C) Steel or cement-brick lined (D) Hard wood

Last Answer : (C) Steel or cement-brick lined