88401. The blank diameter used in thread rolling will be
88402. The cross-section of a chisel is usually
88403. A plug gauge is used to check the diameter of shafts and studs.
88404. In back-hand welding, the angle between the welding torch and the work is kept as
88405. The machining allowance provided on patterns depends upon
88406. In submerged arc welding, an arc is produced between a
88407. In shielded arc welding
88408. In a die casting method, the molten metal is forced into mould under high pressure.
88409. In a centrifugal casting method, the impurities are collected in the centre of the casting.
88410. The electrodes used in spot welding have a tip of
88411. Blanking and piercing operations can be performed simultaneously in a
88412. A pattern maker's shrinkage rule considers
88413. The tolerance produced by shell moulding process of casting is
88414. Galvanising is a
88415. The ferrous metals require more machining allowance than non-ferrous metals.
88416. In a four high rolling mill, there are four rolls out of which
88417. When a pattern is made in three parts, the bottom part is known as a cope.
88418. In __________ welding, the weld may be made either from left to right or from right to left.
88419. In a unilateral system of tolerance, the tolerance is allowed on
88420. A two high rolling mill consists of two rolls which rotate
88421. Carburising flame is used to weld
88422. The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
88423. For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately
88424. Cores are used to
88425. The drawing down is a process of __________ the cross-section of a bar.
88426. During hot working of metals
88427. When a pattern is made in three parts, the __________ is known as a drag.
88428. Shrinkage allowance is made by adding to external dimensions and subtracting from internal dimensions.
88429. A jolt machine is used to
88430. If the sand is too fine, its permeability will be high.
88431. In a compound die
88432. A file removes the metal during
88433. In spot welding, the spacing between two spot weld should not be less than
88434. Aluminium is the best material for making patterns because it is
88435. Gagger is used for cleaning the moulding sand.
88436. In sheet metal work, the cutting force on the tool can be reduced by
88437. In order to get uniform thickness of the plate by rolling process, one provides
88438. A pouring basin acts as a reservoir for the molten metal.
88439. In bending operation, the metal takes the shape of a punch.
88440. The cold working of metals is carried out
88441. Lancing is the operation of
88442. Notching is the operation of
88443. The shrinkage allowance for cast iron pattern is
88444. An oxidising flame is obtained when equal volumes of oxygen and acetylene are supplied.
88445. A neutral flame is obtained by supplying
88446. An oxidising process used for aluminium and magnesium articles is called
88447. For welding plates of thickness less than 5 mm, its edges
88448. In order to cut mild steel, the cutting angle of chisel should be
88449. The operation of straightening a curved sheet metal, is known as
88450. The correct sequence for preparing a billet for extrusion process is pickling, alkaline cleaning, phosphate coating and lubricating with reactive soap.
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