75501. The operation of cutting a number of holes evenly spaced in a regular pattern on a sheet of metal is. called perforating.
75502. The metal is subjected to mechanical working for
75503. Spondylitis is the name of a disease that affects the?
75504. The electron beam welding can be carried out in
75505. In tungsten-inert gas arc welding, a __________ electrode is used.
75506. The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called
75507. In die casting, machining allowance is
75508. The welding set up is said to have straight polarity, when
75509. A moving mandrel is used in
75510. The most preferred process for casting gas turbine blades is
75511. The upsetting is a process of
75512. If neutral flame is used in oxy-acetylene welding, both oxygen and acetylene cylinders of the same capacity will be emptied at the same time.
75513. Which of the following material can be used for making patterns ?
75514. The torch used for oxygen cutting is same as for oxy-acetylene welding.
75515. According to Indian standards, the total number of tolerance grades are
75516. Loam sand is a mixture of
75517. A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
75518. The oxy-acetylene gas used in gas welding produce a flame temperature of
75519. Metal patterns require __________ draft allowance than wooden patterns.
75520. For gas welding, the presure desired at the welding torch for acetylene is
75521. The tear glands are called?
75522. Spot welding is used for welding
75523. Thermit welding is often used in
75524. The directional solidification in casting can be improved by using
75525. A sand employed on the faces of the pattern before moulding, is called
75526. Select the one which best expresses the same sentence in passive voice: I saw him conducting the rehearsal.?
75527. When two metal pieces of different thicknesses are to be welded by projection welding, then the projections should be made on __________ metal piece.
75528. In fore-hand welding, the angle between the welding rod and the work is kept as
75529. The minimum size of a bloom is
75530. The binder commonly used in making oil sand, is
75531. The material which can be best cut with oxygen cutting process is
75532. In fore-hand welding, the weld is made
75533. In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to
75534. Thermit, used in thermit welding, is a mixture of
75535. The width of slot cut by a hacksaw blade is __________ the width of the blade.
75536. Fill up the blanks:I hope I ......... succeed.?
75537. A file with 20 teeth in 25 mm is called
75538. The flux commonly used in brazing is
75539. The increase in hardness due to cold working, is called
75540. When a pattern is made in three parts, the top part, is known as a
75541. In a __________ , the molten metal is poured and allowed to solidify while the mould is revolving.
75542. Riddle is used for
75543. A hacksaw blade cuts on the
75544. The oxygen cylinder is usually painted with
75545. Which of the following welding method uses a pool of molten metal?
75546. In fore-hand welding, the angle between the welding torch and the work is __________ as compared to back-hand welding.
75547. The advantage of thermit welding is that
75548. A gimlet is a __________ tool.
75549. Slick is used for repairing and finishing the mould.