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All questions of Important alloys & their uses for UPSC CSE Exam
What is the main constituent of the alloy known as "Duralumin"?- a)Copper
- b)Iron
- c)Aluminum
- d)Zinc
Correct answer is option 'C'. Can you explain this answer?
What is the main constituent of the alloy known as "Duralumin"?
a)
Copper
b)
Iron
c)
Aluminum
d)
Zinc
 | Catalyst Learningacademy answered |
Duralumin is an aluminum alloy that contains copper as its primary component. It is lightweight, yet strong and is commonly used in the construction of aircraft structures and parts.
Which of the following alloys is used for making coins in many countries?- a)Stainless steel
- b)Nickel silver
- c)Bronze
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which of the following alloys is used for making coins in many countries?
a)
Stainless steel
b)
Nickel silver
c)
Bronze
d)
Brass
 | Paradigm Institute answered |
Bronze, an alloy of copper and tin, is commonly used for making coins in many countries. It has good durability, resistance to corrosion, and can be easily molded into desired shapes.
What is the primary component of the alloy known as "Nichrome"?- a)Nickel
- b)Copper
- c)Zinc
- d)Aluminum
Correct answer is option 'A'. Can you explain this answer?
What is the primary component of the alloy known as "Nichrome"?
a)
Nickel
b)
Copper
c)
Zinc
d)
Aluminum
| | Paradigm Institute answered |
Nichrome is an alloy primarily composed of nickel and chromium. It is known for its high electrical resistance and is commonly used in heating elements, such as those found in toasters and electric ovens.
Which alloy is used in making magnets?- a)Bronze
- b)Stainless steel
- c)Alnico
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is used in making magnets?
a)
Bronze
b)
Stainless steel
c)
Alnico
d)
Brass
| | Paradigm Institute answered |
Alnico is an alloy composed of aluminum, nickel, and cobalt, along with small amounts of iron and other elements. It is used in making magnets due to its strong magnetic properties.
Which alloy is used in the production of automobile pistons?- a)Bronze
- b)Stainless steel
- c)Cast iron
- d)Aluminum alloy
Correct answer is option 'D'. Can you explain this answer?
Which alloy is used in the production of automobile pistons?
a)
Bronze
b)
Stainless steel
c)
Cast iron
d)
Aluminum alloy
| | Catalyst Learningacademy answered |
Aluminum alloys, known for their lightweight properties and good thermal conductivity, are used in the production of automobile pistons. They help reduce the weight of the engine and improve fuel efficiency.
Which alloy is commonly used in dental fillings?- a)Stainless steel
- b)Bronze
- c)Amalgam
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is commonly used in dental fillings?
a)
Stainless steel
b)
Bronze
c)
Amalgam
d)
Brass
| | Catalyst Learningacademy answered |
Amalgam is an alloy used in dental fillings. It is primarily composed of a mixture of mercury and other metals, such as silver, tin, and copper. Amalgam fillings are durable and long-lasting.
What is the main component of the alloy known as "Invar"?- a)Nickel
- b)Copper
- c)Zinc
- d)Aluminum
Correct answer is option 'A'. Can you explain this answer?
What is the main component of the alloy known as "Invar"?
a)
Nickel
b)
Copper
c)
Zinc
d)
Aluminum
| | Paradigm Institute answered |
Invar is an alloy primarily composed of iron and nickel. It exhibits low thermal expansion properties, making it useful in precision instruments, such as clocks, scientific devices, and measuring tapes.
Which alloy is used for making the filaments of incandescent light bulbs?- a)Stainless steel
- b)Tungsten
- c)Aluminum alloy
- d)Brass
Correct answer is option 'B'. Can you explain this answer?
Which alloy is used for making the filaments of incandescent light bulbs?
a)
Stainless steel
b)
Tungsten
c)
Aluminum alloy
d)
Brass
| | Catalyst Learningacademy answered |
Tungsten is used for making the filaments of incandescent light bulbs due to its high melting point and resistance to high temperatures. It can withstand the heat generated by the filament and emit bright light.
Which alloy is used in making high-quality musical instruments?- a)Stainless steel
- b)Nickel silver
- c)Bronze
- d)Aluminum alloy
Correct answer is option 'B'. Can you explain this answer?
Which alloy is used in making high-quality musical instruments?
a)
Stainless steel
b)
Nickel silver
c)
Bronze
d)
Aluminum alloy
| | Paradigm Institute answered |
Nickel silver, also known as German silver, is an alloy of copper, nickel, and zinc. It is commonly used in making high-quality musical instruments like saxophones, flutes, and trumpets.
Which alloy is used in making automobile engine blocks?- a)Aluminum alloy
- b)Stainless steel
- c)Bronze
- d)Cast iron
Correct answer is option 'D'. Can you explain this answer?
Which alloy is used in making automobile engine blocks?
a)
Aluminum alloy
b)
Stainless steel
c)
Bronze
d)
Cast iron
| | Catalyst Learningacademy answered |
Cast iron is used in making automobile engine blocks due to its excellent heat retention properties and high wear resistance. It can withstand high temperatures and provides structural strength.
Which alloy is used in making heat-resistant utensils like saucepans and frying pans?- a)Stainless steel
- b)Copper alloy
- c)Bronze
- d)Nickel alloy
Correct answer is option 'A'. Can you explain this answer?
Which alloy is used in making heat-resistant utensils like saucepans and frying pans?
a)
Stainless steel
b)
Copper alloy
c)
Bronze
d)
Nickel alloy
| | Paradigm Institute answered |
Stainless steel is used in making heat-resistant utensils like saucepans and frying pans. It offers excellent heat conductivity, durability, and resistance to corrosion, making it ideal for cooking purposes.
Which alloy is used in making electrical contacts due to its high electrical conductivity?- a)Stainless steel
- b)Tungsten
- c)Copper alloy
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is used in making electrical contacts due to its high electrical conductivity?
a)
Stainless steel
b)
Tungsten
c)
Copper alloy
d)
Brass
| | Paradigm Institute answered |
Copper alloys, such as brass and bronze, are commonly used in making electrical contacts due to their high electrical conductivity. They help facilitate efficient flow of electricity.
Which alloy is used in making surgical instruments and implants?- a)Bronze
- b)Stainless steel
- c)Titanium alloy
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is used in making surgical instruments and implants?
a)
Bronze
b)
Stainless steel
c)
Titanium alloy
d)
Brass
| | Paradigm Institute answered |
Titanium alloys are used in making surgical instruments and implants due to their biocompatibility, strength, and resistance to corrosion. They are commonly used in orthopedic and dental applications.
Which alloy is used in making jewelry due to its lustrous appearance and durability?- a)Bronze
- b)Stainless steel
- c)Silver alloy
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is used in making jewelry due to its lustrous appearance and durability?
a)
Bronze
b)
Stainless steel
c)
Silver alloy
d)
Brass
| | Paradigm Institute answered |
Silver alloys, often mixed with copper or other metals, are used in making jewelry. They offer lustrous appearance, durability, and are less prone to tarnishing compared to pure silver.
Which alloy is used in making jet engine components due to its high-temperature resistance?- a)Stainless steel
- b)Aluminum alloy
- c)Titanium alloy
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which alloy is used in making jet engine components due to its high-temperature resistance?
a)
Stainless steel
b)
Aluminum alloy
c)
Titanium alloy
d)
Brass
| | Catalyst Learningacademy answered |
Titanium alloys, known for their high-temperature resistance, strength, and light weight, are used in making jet engine components. They can withstand the extreme conditions and stresses encountered in aerospace applications.
What is the primary component of the alloy known as "Pewter"?- a)Tin
- b)Copper
- c)Zinc
- d)Aluminum
Correct answer is option 'A'. Can you explain this answer?
What is the primary component of the alloy known as "Pewter"?
a)
Tin
b)
Copper
c)
Zinc
d)
Aluminum
| | Paradigm Institute answered |
Pewter is primarily made from tin, along with small amounts of other metals such as copper, antimony, and bismuth. It is a soft metal alloy traditionally used for making tableware, decorative items, and figurines.
Which alloy is used in the construction of bridges and buildings due to its high tensile strength?- a)Bronze
- b)Stainless steel
- c)Wrought iron
- d)Brass
Correct answer is option 'B'. Can you explain this answer?
Which alloy is used in the construction of bridges and buildings due to its high tensile strength?
a)
Bronze
b)
Stainless steel
c)
Wrought iron
d)
Brass
| | Catalyst Learningacademy answered |
Stainless steel, an alloy of iron, chromium, and sometimes other metals, is commonly used in the construction of bridges and buildings due to its high tensile strength, corrosion resistance, and durability.
What is the primary component of the alloy known as "Constantan"?- a)Nickel
- b)Copper
- c)Zinc
- d)Aluminum
Correct answer is option 'B'. Can you explain this answer?
What is the primary component of the alloy known as "Constantan"?
a)
Nickel
b)
Copper
c)
Zinc
d)
Aluminum
| | Catalyst Learningacademy answered |
Constantan is an alloy primarily made from copper and nickel. It is widely used in resistance wires and strain gauges due to its low electrical resistance and high resistance to oxidation.
Which of the following alloys is commonly used in electrical wires?- a)Bronze
- b)Stainless steel
- c)Nichrome
- d)Brass
Correct answer is option 'C'. Can you explain this answer?
Which of the following alloys is commonly used in electrical wires?
a)
Bronze
b)
Stainless steel
c)
Nichrome
d)
Brass
| | Catalyst Learningacademy answered |
Nichrome is an alloy of nickel and chromium, commonly used in electrical wires due to its high electrical resistance. It can withstand high temperatures and is often used in heating elements for various appliances.
Which alloy is used in making aircraft bodies due to its lightweight and high strength?- a)Bronze
- b)Aluminum alloy
- c)Stainless steel
- d)Brass
Correct answer is option 'B'. Can you explain this answer?
Which alloy is used in making aircraft bodies due to its lightweight and high strength?
a)
Bronze
b)
Aluminum alloy
c)
Stainless steel
d)
Brass
| | Catalyst Learningacademy answered |
Aluminum alloys, such as aluminum-magnesium and aluminum-copper alloys, are widely used in the aerospace industry for making aircraft bodies. They offer a combination of lightweight properties and high strength.
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