Workshop Technology Questions

• In a hot chamber die casting machine
• The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
• When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
• The temperature at which the new grains are formed in the metal is called
• In submerged arc welding, an arc is produced between a
• The chisel used for cutting key ways is
• When a pattern is made in three parts, the bottom part is known as a cope.
• In a centrifugal casting method, the impurities are collected in the centre of the casting.
• Which of the following welding process uses non-consumable electrodes?
• In a hot chamber die casting machine
• Blanking and piercing operations can be performed simultaneously in a
• The purpose of a riser is to
• In a four high rolling mill, there are four rolls out of which
• In arc welding, the electric arc is produced between the work and the electrode by
• Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes?
• The fullers are used
• The cross-section of a chisel is usually
• A plug gauge is used to check the diameter of shafts and studs.
• The property of sand due to which it evolves a great amount of steam and other gases is called
• In back-hand welding, the angle between the welding torch and the work is kept as