The bearing material that is most susceptible to corrosion is : Q. Babbit R. Copper-lead S. Aluminium T. Aluminium-babbit

The bearing material that is most susceptible to corrosion is :  
Q. Babbit  
R. Copper-lead  
S. Aluminium  
T. Aluminium-babbit
by

1 Answer

Answer :

Q. Babbit
by

Related questions

Wood is well suited to use as bearing on straw walker cranks in combine due to fact a) Wood corrosion resistance b) Split bearing are needed for practical purpose c) It can take radial as well as thrust loads d) No lubrication is required

Description : Wood is well suited to use as bearing on straw walker cranks in combine due to fact a) Wood corrosion resistance b) Split bearing are needed for practical purpose c) It can take radial as well as thrust loads d) No lubrication is required

Last Answer : b) Split bearing are needed for practical purpose

The common alloy, babbit metal, which is composed of tin, antimony, and copper, is best known for its use in: w) magnets x) bearings y) dental fillings z) drinking vessels

Description : The common alloy, babbit metal, which is composed of tin, antimony, and copper, is best known for its use in: w) magnets x) bearings y) dental fillings z) drinking vessels

Last Answer : ANSWER: X -- BEARINGS

Transplanter using soil bearing seedlings are more popular than washed root seedling transplanter because of a) less labour requirement b) lesser plant missing percentage c) higher work rates d) all of the above

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Last Answer : d) all of the above

The type of bearing generally used to support the discs on a standard disc plough is: A. Ball bearing. B. Tapered roller bearing. C. Plain roller bearing. D. Bush bearing.

Description : The type of bearing generally used to support the discs on a standard disc plough is: A. Ball bearing. B. Tapered roller bearing. C. Plain roller bearing. D. Bush bearing.

Last Answer : B. Tapered roller bearing.

Tapper roller bearing are used in disc harrow because a) It can take heavy radial loads b) It can take both radial as well as end thrust c) It can operate effectively at low speed and in contact with dirt d) Both (b) and (c) are true

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Last Answer : d) Both (b) and (c) are true

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Last Answer : c) Both (a) and (b)

Air output of a duster is given by formula a) Q= 60×A×V b)Q= 60×A×(2GH/Y) c) Q= 240×A×h d) all of the above

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Last Answer : d) all of the above

Which metal does not undergo corrosion due to the formation of oxide layer? (1) Copper (2) Iron (3) Aluminium (4) Zinc

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Last Answer : Aluminium

Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower (A) Price (B) Corrosion resistance (C) Thermal conductivity (D) Abundant availability

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Brass is an alloy of copper and zinc having the relative percentage (A) 60-70% Cu and 30-40% Zn (B) 50-60% Cu and 40-50% Zn (C) 40-50 % Cu and 60-50% Zn (D) 30-40 % Cu and 60-70% Zn

Description : Brass is an alloy of copper and zinc having the relative percentage (A) 60-70% Cu and 30-40% Zn (B) 50-60% Cu and 40-50% Zn (C) 40-50 % Cu and 60-50% Zn (D) 30-40 % Cu and 60-70% Zn

Last Answer : A) 60-70% Cu and 30-40% Zn

Bronze is an alloy of copper, zinc , and tin having composition (A) 60% - 30% - 10% (B) 70% - 20% - 10% (C) 88% - 2% - 10% (D) 50% -30% - 20%

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Last Answer : (C) 88% - 2% - 10%

Which of the following is not used as a bearing material? (A) Copper-lead alloys (B) Babbitts (C) Bronzes (D) Cermets

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Last Answer : Option D

The asbestos cement sewers are A. Light in weight B. Not structurally strong to bear large compressive stress C. Susceptible to corrosion by sulphuric acid D. All the above

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Last Answer : ANS: D

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

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

Which of the following metals in not used for coating of the base metal to guard it against corrosion? (A) Lead (B) Cadmium (C) Magnesium (D) Aluminium

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Last Answer : (C) Magnesium

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability? (A) Lead (B) Copper (C) Aluminium (D) Wrought iron

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Last Answer : (A) Lead

Out of the following, the most malleable material is (A) Copper (B) Aluminium (C) Wrought iron (D) Lead

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The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability? (A) Lead (B) Copper (C) Aluminium (D) Wrought iron

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Last Answer : Option A

Connecting rod generally have A)t-shape b)angle shape C)i-shape d)flst-shape

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Last Answer : C)i-shape

_____ is a surface fatigue failure which occurs when the load on the bearing part exceeds the surface endurance strength of the material. (a) Scoring (b) Pitting (c) Corrosion

Description : _____ is a surface fatigue failure which occurs when the load on the bearing part exceeds the surface endurance strength of the material. (a) Scoring (b) Pitting (c) Corrosion

Last Answer : (b) Pitting

The most resistant material to alkaline corrosion is (A) Duriron (B) Nickel (C) Aluminium (D) Karbate

Description : The most resistant material to alkaline corrosion is (A) Duriron (B) Nickel (C) Aluminium (D) Karbate

Last Answer : (B) Nickel

The mechanical cleaning of sugar cane is done due to A. The different in the peripheral velocity of rollers B. Rough surface provided Or the outer surface of rollers C. Blow of air which forces the extraneous material out of the machine D. All of the above

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Last Answer : D. All of the above

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Last Answer : b) Increase

Capacity of field choppers (chaff cutter) is affected by.... (a) Capacity of the feed mechanism (cross-sectional area) (b) Rate of advance of material through throat considered as to be same linear speed of feed mechanism (c) Density of forage material (d) All of the above

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Last Answer : (d) All of the above

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Last Answer : b) Increase

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Last Answer : (a)cylinder loss

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State the composition and properties of Babbit metal.

Description : State the composition and properties of Babbit metal.

Last Answer : Composition: Sn = 88% Sb = 8% Cu =4% Properties: i) It is silvery white, soft metal alloy. ii) It has very low coefficient of friction. iii) It has very high corrosion and wear and tear ... is used for making engine bearing. ii) It is also used as a common bearing metal in cast iron boxes.

Give the composition, properties and application of Babbit metal.

Description : Give the composition, properties and application of Babbit metal. 

Last Answer : Composition: Sn = 88% Sb = 8% Cu =4%  Properties: i) It is silvery white, soft metal alloy. ii) It has very low coefficient of friction. iii) It has very high corrosion and wear and tear ... used for making engine bearing. ii) It is also used as a common bearing metal in cast iron boxes. 

The sewer which resists sulphide corrosion, is A. Brick sewer B. Cast iron sewer C. R.C.C. sewer D. Lead sewer

Description : The sewer which resists sulphide corrosion, is A. Brick sewer B. Cast iron sewer C. R.C.C. sewer D. Lead sewer

Last Answer : ANS: D

'Corrosion-resistant material' and 'noncorrodible material' will include which of the following ____________. A. plastics B. silver C. copper-nickel D. all of the above

Description : 'Corrosion-resistant material' and 'noncorrodible material' will include which of the following ____________. A. plastics B. silver C. copper-nickel D. all of the above

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Hastelloy C is a good material of construction in chemical process industry, since it is (A) Highly corrosion resistant and is readily fabricated (B) Relatively inexpensive although it can be fabricated with some difficulty (C) Corrosion resistant to most alkalis, particularly because of its copper content (D) Light and resists attack by acids

Description : Hastelloy C is a good material of construction in chemical process industry, since it is (A) Highly corrosion resistant and is readily fabricated (B) Relatively inexpensive although it can be ... most alkalis, particularly because of its copper content (D) Light and resists attack by acids

Last Answer : (D) Light and resists attack by acids

High speed diesel A) is used on high speed engine B) has lower fule value then l.s.d per litre. C)both (a) & (b) D)none of the above

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Last Answer : C)both (a) & (b)

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Last Answer : b)20-40m/s

Lead is (A) Not resistant to corrosion (B) Used as a cathodic material (C) Not used as pigment (in its compound forms) for paints (D) Used as a shock absorber (in mattress form) between the foundation and steel framework of skyscraper buildings

Description : Lead is (A) Not resistant to corrosion (B) Used as a cathodic material (C) Not used as pigment (in its compound forms) for paints (D) Used as a shock absorber (in mattress form) between the foundation and steel framework of skyscraper buildings

Last Answer : (D) Used as a shock absorber (in mattress form) between the foundation and steel framework of skyscraper buildings

The metal used for making air crafts and rockets is – (1) Lead (2) Aluminium (3) Nickel (4) Copper

Description : The metal used for making air crafts and rockets is – (1) Lead (2) Aluminium (3) Nickel (4) Copper

Last Answer : (3) Nickel Explanation: Nickel-based super alloys are an unusual class of metallic materials with an exceptional combination of high temperature strength, toughness, and resistance to degradation in ... These materials are widely used in aircraft and power-generation turbines, rocket engines, etc.

A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium

Description : A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium

Last Answer : (2) an alloy of tin and lead Explanation: Electric fuse wire is an alloy made of tin (63 % lead 37 %. The cross sectional area determines the melting point at a certain current. Alloys (e.g. ... resulting combination of good conductivity (due to the tin) with a low melting point due to the lead).

The metal whose electrical conductivity is more, is – (1) copper (2) aluminium (3) silver (4) lead

Description : The metal whose electrical conductivity is more, is – (1) copper (2) aluminium (3) silver (4) lead

Last Answer : (3) silver Explanation: Copper ; 9% less conductive than silver: aluminium is 1 0% less conductive than copper; while steel is the least conductive among the given options. The most electrically conductive metal is silver.

Babbitt metal used for bearings is a _________base alloy. (A) Tin (B) Lead (C) Aluminium (D) Copper

Description : Babbitt metal used for bearings is a _________base alloy. (A) Tin (B) Lead (C) Aluminium (D) Copper

Last Answer : (A) Tin

Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Description : Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Last Answer : (A) Mainly tin (85%) and lead

Constantan used in thermocouples is an alloy of (A) Iron & copper (B) Copper & aluminium (C) Lead & tin (D) None of these

Description : Constantan used in thermocouples is an alloy of (A) Iron & copper (B) Copper & aluminium (C) Lead & tin (D) None of these

Last Answer : (D) None of these

Which of the following metals is the most prone to work hardening? (A) Brass (B) Aluminium (C) Copper (D) Lead

Description : Which of the following metals is the most prone to work hardening? (A) Brass (B) Aluminium (C) Copper (D) Lead

Last Answer : Option A

Matte smelting is used in the extraction of (A) Lead (B) Zinc (C) Aluminium (D) Copper

Description : Matte smelting is used in the extraction of (A) Lead (B) Zinc (C) Aluminium (D) Copper

Last Answer : Option D

Which of the following metal sheets is most effective in preventing dampness? (A) Copper sheets (B) Lead sheets (C) Aluminium sheets (D) All the above

Description : Which of the following metal sheets is most effective in preventing dampness? (A) Copper sheets (B) Lead sheets (C) Aluminium sheets (D) All the above

Last Answer : Answer: Option D

The metal used for making aircrafts and rockets is (1) Lead (2) Aluminium (3) Nickel (4) Copper

Description : The metal used for making aircrafts and rockets is (1) Lead (2) Aluminium (3) Nickel (4) Copper

Last Answer : Nickel

A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium

Description : A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium

Last Answer : an alloy of tin and lead

The metal whose electrical conductivity is more, is (1) copper (2) aluminium (3) silver (4) lead

Description : The metal whose electrical conductivity is more, is (1) copper (2) aluminium (3) silver (4) lead

Last Answer : silver

Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least susceptible to HIV infection.(c) AIDS patients are being fully cured cent per cent with proper care and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

Description : Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least ... and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

Last Answer : (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

The purpose of lubrication in an antifriction bearing is (a) to reduce the friction between balls and races (b) dissipation of frictional heat prevention of corrosion (c) protection of the bearing from dirt and other foreign particles (d) all of the mentioned

Description : The purpose of lubrication in an antifriction bearing is (a) to reduce the friction between balls and races (b) dissipation of frictional heat prevention of corrosion (c) protection of the bearing from dirt and other foreign particles (d) all of the mentioned

Last Answer : (d) all of the mentioned