A. Promotes graphite module formation
B. Improves its ductility
C. Does not promote graphite flakes formation
D. Increases the fluidity of molten metal
Correct Answer: Increases the fluidity of molten metal ✔
Last Updated: February 08, 2019
Related MCQs
- __________ is used as a material of construction for the blade of power saw ?
- The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the__________?
- Which of the following is not the function of a volute casing provided in a centrifugal pump ?
- Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails ?
- Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is __________?
- The most serious manufacturing defect from fracture toughness point of view is__________?
- __________ has the highest melting point out of the following ?
- In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material ?
- Air-petrol ratio for maximum power generation in spark ignition engine is about__________?
- Ceramic compounds as compared to metallic compounds __________ ?
- Galvanic corrosion cannot be prevented by__________?
- Silicon percentage in silicon steel used for electrical equipments is about__________?
- Babbitt lining is used on brass/bronze bearings to increase the__________?
- Window panes of aeroplanes are normally made of__________?
- Fibre reinforced plastic (FRP) are__________?
- Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
- Which of the following approaches the ideal gas behavior most closely ?
- Normalising does not __________ of a metal?
- Gratings is associated with the measurement of__________?
- Lap joints are preferred over butt joints in soldering/brazing, because these joints are __________?
- Water flow in the river during flood can be categorized as the __________ flow ?
- Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils ?
- Laser welding is widely employed in the __________ industries ?
- Joining of thin foils is preferred to be done by __________?
- About __________ ton of coke is required in a cupola to produce one ton of casting ?
- Satellites burn off during re-entry to earth’s atmosphere, because of the __________?
- Filler material used in welding should have __________ as compared to the parent metal to be welded ?
- The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?
- With increase in temperature, the electrical conductivity of semiconductors__________?
- Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same__________?
- The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is __________ °C ?