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ফাউন্ড্রি এন্ড প্যাটার্ন মেকিং MCQ
62. The function of a gated pattern is-
To produce small castings in mass production
To create castings of a very heavy mass
To create castings containing complex design
To create symmetrical castings
66. Which of the following factors affect the choice of a pattern at most times?
Size and complexity of the casting
Characteristics of castings
Type of molding and castings method to be used
Type of cooling rates to be provided
70. Which of the following factor is not considered while selecting a kind of pattern?
Quantity of casting
Types of moulding method
Shape of the casting
Nature of moulding process
75. The life of a pattern is most likely to depend upon which of the following term?
Number of castings produced
Size of the casting
Size of the pattern
Type of cooling rate of the casting
79. High refractoriness of a material refers to its--
Slipperyness of the material
Chemical strength towards other material
Strength to withstand at high temperature
Ability to get dissolved in molten metal