Co2_moulding_process_is_an_ideal_process,_where_speed_and_flexibility_ – McqOptions

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1.	Co₂_moulding_process_is_an_ideal_process,_where_speed_and_flexibility_is_the_prime_requirement.$
A.	True
B.	False
Answer» B. False

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WHICH_OF_THE_FOLLOWING_ADDITIVES_ARE_ADDED_TO_THE_SAND_IN_CO<SUB>2</SUB>_MOULDING_FOR_THE_IMPROVEMENT_IN_COLLAPSIBILITY_OF_THE_SAND??$
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How much time (in a minute) is usually required for the passing of Co<sub>2</sub> through the mould?
Continuous passing of Co<sub>2</sub> through the mould can decrease the strength of mould and results in a weak mould.
How much percentage of sodium silicate (Na<sub>2</sub>SiO<sub>3</sub>) is added to the sand mixture in Co<sub>2</sub> moulding?