A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel

A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel
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Answer : C
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Explain the effects of alloying chromium and nickel in stainless steel.

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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

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

Inconel is an alloy of (A) Tin, zinc and nicke(B) Iron, nickel and chromium(C) Copper and nickel(D) Copper and tin

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Last Answer : (B) Iron, nickel and chromium

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Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and (A) Manganese (B) Silicon (C) Nickel (D) Chromium

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Last Answer : (A) Manganese

Constituents of stellite are (A) Zinc, copper & nickel (B) Cobalt, chromium & tungsten (C) Zinc, aluminium & nickel (D) Nickel, cobalt & vanadium

Description : Constituents of stellite are (A) Zinc, copper & nickel (B) Cobalt, chromium & tungsten (C) Zinc, aluminium & nickel (D) Nickel, cobalt & vanadium

Last Answer : (B) Cobalt, chromium & tungsten

Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel. (A) Wrought (B) Tool (C) Alloy (D) Plain carbon

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Last Answer : (D) Plain carbon

Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Description : Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Last Answer : (A) Molybdenum

All of the following alloying elements of steel increases hardness but sacrifice ductility, except (A) Nickel (B) Vanadium (C) Molybdenum (D) Chromium

Description : All of the following alloying elements of steel increases hardness but sacrifice ductility, except (A) Nickel (B) Vanadium (C) Molybdenum (D) Chromium

Last Answer : (A) Nickel

Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Description : Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Last Answer : : Option B

Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Description : Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

Last Answer : Option B

Nickel and __________ are the alloying element added in steel to increase its toughness. (A) Molybdenum(B) Chromium(C) Vanadium(D) Silicon

Description : Nickel and __________ are the alloying element added in steel to increase its toughness. (A) Molybdenum (B) Chromium (C) Vanadium (D) Silicon

Last Answer : Option D

Presence of nickel & chromium in steel does not raise its (A) Elastic limit (B) Machining properties (C) Ductility (D) Resilience Answer: Option A

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Last Answer : Option A