- Silicon
- Phosphorus
- Sulphur
- None of these
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Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?
Answer: Option 1 Silicon is the impurity in cast iron which promotes graphite nodule formation and increases the fluidity of the molten metal.
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Which of the following impurity in cast iron makes it hard and brittle?
Answer: Option 2 Sulfur is normally regarded as an impurity and has an adverse effect on impact properties when a steel is high in sulphur and low in manganese. Sulphur improves...
1 Answers 1 views
A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is?
Answer: Option 4 Neutral flame is type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding...
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Which one of the following piles has a cast iron shoe even after removal of the hollow cylindrical steel casing?
Answer: Option 4 Let'
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Which of the below is a pigment imparting brown colour?
Answer: Option 3 Burnt Sienna imparts brown colour to paint. Raw sienna, soot and ultramarine imparts yellow, black and blue colour respectively to paint.
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Which one is remelted and poured into moulds to get cast iron?
Answer: Option 2 Let'
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Which of the following constituents present in petroleum is responsible for ash formation?
Answer: Option 3 Let'
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Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?
Answer: Option 2 Let'
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Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
Answer: Option 1 Let'
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Each property may also have a cascaded value of ___________ which means that, for a given element, the property takes the same specified value as the property for the element’s parent.?
Answer: Option 3 Each property may also have a cascaded value of ‘inherit’, which means that, for a given element, the property takes the same specified value as the property...
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