MCQs
Total Questions : 350
| Page 2 of 35 pages
Answer: Option A. -> Calcined ore (8 parts), coke (4 parts) and limestone (1 part)
The charge of the blast furnace consists of Calcined ore (8 parts), coke (4 parts) and limestone (1 part)
The charge of the blast furnace consists of Calcined ore (8 parts), coke (4 parts) and limestone (1 part)
Answer: Option B. -> 13% cementite and 87% ferrite
Pearlite consists of 13% cementite and 87% ferrite
Pearlite consists of 13% cementite and 87% ferrite
Answer: Option D. -> Carbon-chrome steel
Balls for ball bearings are made of Carbon-chrome steel
Balls for ball bearings are made of Carbon-chrome steel
Answer: Option C. -> Resilience
resilience is the ability of a material to absorb energy when it is deformed elastically, and release that energy upon unloading.
resilience is the ability of a material to absorb energy when it is deformed elastically, and release that energy upon unloading.
Answer: Option A. -> Carbon in the form of free graphite
grey cast iron is a type of cast iron that has a graphitic microstructure
grey cast iron is a type of cast iron that has a graphitic microstructure
Answer: Option D. -> Nickel steel
The material widely used for making pendulums of clocks is Nickel steel.
Nickel enhances important properties of stainless steel such as formability, weldability and ductility, while increasing corrosion resistance in certain applications.
The material widely used for making pendulums of clocks is Nickel steel.
Nickel enhances important properties of stainless steel such as formability, weldability and ductility, while increasing corrosion resistance in certain applications.
Answer: Option C. -> Above 1%
Taps dies and drills contain carbon Above 1%
Taps dies and drills contain carbon Above 1%
Answer: Option B. -> Surface defects
Dye penetrant inspection is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics or ceramics).
Dye penetrant inspection is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics or ceramics).
Answer: Option B. -> Tin and copper
Solder is an alloy contains Tin and copper
Solder is an alloy contains Tin and copper
Answer: Option C. -> 2.5 to 4.5%
Most cast irons have a chemical composition of 2.5 - 4.0% carbon, 1 - 3% silicon, and the remainder iron.
Grey cast iron has less tensile strength and shock resistance than steel, but its compressive strength is comparable to low- and medium-carbon steel.
Most cast irons have a chemical composition of 2.5 - 4.0% carbon, 1 - 3% silicon, and the remainder iron.
Grey cast iron has less tensile strength and shock resistance than steel, but its compressive strength is comparable to low- and medium-carbon steel.
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