Workshop Technology A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct? The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction Any one of the above The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction The bottom and middle roll rotate in the same direction The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction Any one of the above The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction The bottom and middle roll rotate in the same direction ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In order to deliver molten metal from pouring basin to gate, a ________ is used. Core Sprue None of these Riser Core Sprue None of these Riser ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology V-block is used to None of these Locate centres of round rods Check the trueness of flat surfaces Check the surface roughness None of these Locate centres of round rods Check the trueness of flat surfaces Check the surface roughness ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as Extrusion Cold peening Cold heading Hot piercing Extrusion Cold peening Cold heading Hot piercing ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The draft or taper allowance on casting is generally 1 to 2 mm/m 10 to 15 mm/m 2 to 5 mm/m 5 to 10 mm/m 1 to 2 mm/m 10 to 15 mm/m 2 to 5 mm/m 5 to 10 mm/m ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Shift is a casting defect which Occurs as sand patches on the upper surface of a casting Occurs near the ingates as rough lumps on the surface of a casting Results in general enlargement of a casting Results in a mismatching of the top and bottom parts of a casting Occurs as sand patches on the upper surface of a casting Occurs near the ingates as rough lumps on the surface of a casting Results in general enlargement of a casting Results in a mismatching of the top and bottom parts of a casting ANSWER DOWNLOAD EXAMIANS APP
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