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For a single riser in the casting system, the chill should be placed at the ends of the riser.
A suit, a trouser, and a shirt are to be stitched from a cloth. The cloth required for the suit is the average of cloth required for trousers and shirt. The length of the cloth for suit is 1.5 times the cloth required for the shirt. The length of cloth required for shirt is 5 times the even prime number. Which of the following is/are correct? A. Cloth required for trousers is 20 m B. Average length of cloth required for all the dresses = Cloth required for suit C. Initially, the cloth was 45 m D. Cloth required for shirt is 15 m
A 250 mm by 250 mm ingot casting, 1.5 m high and at 1225 K temperature, is stripped from its mold. The casting is made to stand on end on the floor of a large foundry whose wall, floor and roof can be assumed to be at 300 K temperature. Make calculation for the rate of radiant heat interchange between the casting and the room. The casting material has an emissivity of 0.85
The casting processes that require expendable moulds are
P. Investment casting
Q. Low pressure casting
R. Shell moulding
S. Slush casting
For a casting with a high area to volume (A/V) ratio, one central riser can be enough to feed the entire casting.
A large size of riser should be placed on the casting system to compensate the solid shrinkage of the casting.
In casting system, the riser is generally placed at the heaviest section to avoid defects from the casting.
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. The early riser has done large amounts of work before other men get out of bed.  P. So the work done at this time is generally well done. Q. In the early morning, the mind is fresh and there are few sounds and other distractions. R. This exercise supplies him with a fund of energy that will last until the evening. S. The early riser also finds time to take some exercise in the fresh morning air. 6. All his work is finished in good time and he goes to bed early.
An open riser is easy to mould as compared to a blind riser.
An open riser is difficult to remove compared to a blind riser.