McqMate
| 1. |
Cast iron gears are used where |
| A. | Stresses on gear are not high |
| B. | Size of the gear is large |
| C. | High order of accuracy is not desired |
| D. | All of the above |
| E. | None of the above |
| Answer» D. All of the above | |
| 2. |
While machining which of the following improves surface finish? |
| A. | Parting off |
| B. | Increased cutting speed |
| C. | Increased depth of cut |
| D. | Formation of built-up edge |
| E. | Increased feed rate |
| Answer» B. Increased cutting speed | |
| 3. |
Optical flats are made of |
| A. | Quartz |
| B. | Steel |
| C. | Plastic |
| D. | Brass |
| E. | Bakelite |
| Answer» A. Quartz | |
| 4. |
Dry blast cleaning involves |
| A. | Blasting the surface with abrasive material |
| B. | Blasting the surface with air only |
| C. | Blasting the surface with sand |
| D. | Blasting the surface with oil |
| E. | None of the above |
| Answer» D. Blasting the surface with oil | |
| 5. |
A right hand tool on lathe machine will cut efficiently while cutting |
| A. | In either direction |
| B. | Grooved jobs |
| C. | From right to left |
| D. | Taper |
| E. | From left to right |
| Answer» C. From right to left | |
| 6. |
Ceramic tool inserts are fixed to the tool holder by |
| A. | Casting |
| B. | Soldering |
| C. | Resistance welding |
| D. | Brazing |
| E. | adhesives |
| Answer» D. Brazing | |
| 7. |
The pouring of molten metal during casting should be stopped when |
| A. | Molten metal rises in the riser |
| B. | Molten metal is exhausted |
| C. | Molten is full |
| D. | Molten metal is seen through the riser |
| E. | Molten metal flows out of the riser |
| Answer» A. Molten metal rises in the riser | |
| 8. |
In shearing operation on a power press, total cutting force depends on |
| A. | sharpness of cutting edge |
| B. | clearance between die and punch |
| C. | angle of shear on die and punch |
| D. | All of the above |
| E. | Parting off |
| Answer» D. All of the above | |
| 9. |
Which strength is the major consideration, which of the following process should be favoured |
| A. | Forging |
| B. | Sand casting |
| C. | Die casting |
| D. | Hot rolling |
| E. | Any of the above |
| Answer» A. Forging | |
| 10. |
While cutting double start threads of pitch 2 mm on a lathe, the cutting tool will advance by |
| B. | 4 mm/revolution |
| C. | 2 mm/revolution |
| D. | 1 mm/revolution |
| E. | 8 mm/revolution |
| Answer» B. 4 mm/revolution | |
| 11. |
In ultrasonic welding the frequency range is generally |
| A. | 80,000 - 800,000 cps |
| B. | 100 - 4000 cps |
| C. | 20,000 - 80,000 cps |
| D. | 800,000 - 5000,000 cps |
| E. | 4000 - 20,000 cps |
| Answer» E. 4000 - 20,000 cps | |
| 12. |
In which of the following process the electrode is not consumed? |
| A. | TIG welding |
| B. | Gas welding |
| C. | DC arc welding |
| D. | Plasma welding |
| E. | Laser welding |
| Answer» A. TIG welding | |
| 13. |
Which of the following is a clearance fit? |
| A. | Press fit |
| B. | Force fit |
| C. | Push fit |
| D. | Sliding fit |
| E. | Driving fit |
| Answer» D. Sliding fit | |
| 14. |
Which hardening process is free from scale formation? |
| A. | Flame hardening |
| B. | Nitriding |
| C. | Cyaniding |
| D. | Induction hardening |
| E. | Parting off |
| Answer» D. Induction hardening | |
| 15. |
Miter gears are |
| A. | Gears of different modules |
| B. | Spur gears of equal diameter and pitch |
| C. | Helical gears of same module |
| D. | Right angled bevel gears having the same number of teeth |
| E. | None of above |
| Answer» D. Right angled bevel gears having the same number of teeth | |
| 16. |
In gas welding using oxygen and acetylene cylinders the pressure of gas is more in |
| B. | Aetylene cylinders |
| C. | Equal in both cylinders |
| D. | Oxygen cylinder |
| E. | 400 - 440 V |
| Answer» D. Oxygen cylinder | |
| 17. |
Some substances generate voltage when they are subjected to mechanical forces or stresses along specific planes. Such subtances are known as |
| A. | Photo-electric |
| B. | Megneto-electric |
| C. | Thermo-electric |
| D. | Piezo-electric |
| E. | Radio-active |
| Answer» D. Piezo-electric | |
| 18. |
Ball bearing races are |
| A. | Lapped |
| B. | Ground |
| C. | Nickel plated |
| D. | Buffed |
| E. | Turned |
| Answer» A. Lapped | |
| 19. |
In centreless grinding the regulating wheel is inclined at an angle |
| A. | 12 - 24? |
| B. | 9-15? |
| C. | 1 - 8? |
| D. | 15 - 18? |
| E. | 25 - 35? |
| Answer» C. 1 - 8? | |
| 20. |
Which of the following operation is not involved in heat treatment of steels |
| A. | Tumbling |
| B. | Cyniding |
| C. | Annealing |
| D. | Normalizing |
| E. | Strain drawing |
| Answer» A. Tumbling | |
| 21. |
The surface roughness on a drawing is represented by |
| A. | Circle |
| B. | Triangle |
| C. | Zig-zag lines |
| D. | Square |
| E. | Curve |
| Answer» B. Triangle | |
| 22. |
A rack is a gear of |
| A. | Infinite pitch |
| B. | Infinite number of teeth |
| C. | Infinite diameter |
| D. | Infinite clearance |
| E. | Infinite module |
| Answer» C. Infinite diameter | |
| 23. |
The shears used for making circular cuts are known as |
| A. | Curved shears |
| B. | Straight shears |
| C. | Any of (A) or (B) |
| E. | Parting off |
| Answer» A. Curved shears | |
| 24. |
For the measurement of temperature the transduction method could be |
| A. | Capacitive |
| B. | Inductive |
| C. | Electron tube |
| D. | Piezo-electric |
| E. | Resistance |
| Answer» E. Resistance | |
| 25. |
Cores are used |
| A. | To make castings sound |
| B. | To strengthen mould |
| C. | To get cavity or recess in a casting |
| D. | To get smooth surface on castings |
| E. | In symmetrical casting only |
| Answer» C. To get cavity or recess in a casting | |
| 26. |
Which of the following process will be preferred for joining thin foils? |
| A. | Thermit welding |
| B. | Gas welding |
| C. | MIG welding |
| D. | DC arc welding |
| E. | Plasma arc welding |
| Answer» E. Plasma arc welding | |
| 27. |
Resistance wire strain gauge works on the principle |
| A. | That conductivity is directly proportional to load on member |
| B. | Due to elongation length increases and diameter reduces, thereby resistance changes |
| C. | That resistance chanes in proportion to strain on material |
| D. | That resistance of wire changes with load |
| E. | That the resistance of a wire is directly proportional to diameter and inversely proportional to length |
| Answer» B. Due to elongation length increases and diameter reduces, thereby resistance changes | |
| 28. |
If the correctness of profile of a thread is to be checked which instrument would you choose? |
| A. | Screw pitch gauge |
| B. | Telescopic gauge |
| C. | Optical projector |
| D. | Sine bar |
| E. | Bench micrometer |
| Answer» C. Optical projector | |
| 29. |
Which is the first element of the tool signature? |
| A. | Side relief angle |
| B. | Side rake angle |
| C. | Parting off |
| D. | Back rake angle |
| E. | Nose radius |
| Answer» D. Back rake angle | |
| 30. |
The surface finish obtainable in abrasive jet machining is of the order of |
| A. | 0.5 to 1.2 |
| B. | 20 to 50 |
| C. | 12 to 20 |
| D. | 2 to 5 |
| E. | 50 to 100 |
| Answer» A. 0.5 to 1.2 | |
| 31. |
Beak horn stake (Bick Iron) is used to |
| B. | Make circular folded seams |
| C. | Parting off |
| D. | Bend sheet metal into cylindrical/conical shapes |
| E. | Make straight and shorp bends |
| Answer» D. Bend sheet metal into cylindrical/conical shapes | |
| 32. |
Paper cutting knives steel contains carbon percentage |
| A. | 0.2 to 0.4% |
| B. | Below 0.2% |
| C. | 1.3 to 1.5% |
| D. | 0.8 to 1% |
| E. | 0.4 to 0.7% |
| Answer» C. 1.3 to 1.5% | |
| 33. |
In broaching operation the accuracy that can be obtained is of the order of |
| A. | 100 micron |
| B. | 1 micron |
| C. | 0.1 micron |
| D. | 1000 micron |
| E. | 10 micron |
| Answer» B. 1 micron | |
| 34. |
Steam condenser tubes are generally made of |
| A. | Brass |
| B. | Bronze |
| C. | Bell metal |
| D. | Admiralty alloy |
| E. | Babbit metal |
| Answer» D. Admiralty alloy | |
| 35. |
The decibel is |
| A. | Unit of noise level |
| B. | A logarithmic ratio between a measured quantity and a reference quantity |
| C. | Quantity of noise per unit area |
| D. | A logarithmic ratio between a measured quantity and 100 |
| E. | None of the above |
| Answer» B. A logarithmic ratio between a measured quantity and a reference quantity | |
| 36. |
In a cupola the raw material is |
| A. | Steel ingots |
| B. | Pig iron and iron scrap |
| C. | Steel billets |
| D. | Iron ore |
| E. | Cast steel |
| Answer» B. Pig iron and iron scrap | |
| 37. |
Principal materials used in soldering are |
| A. | Tin and lead |
| B. | Copper and tin |
| C. | Zinc and copper |
| D. | Copper and lead |
| E. | None of the above |
| Answer» A. Tin and lead | |
| 38. |
A 30 mm diameter is being machined when the chuck is revolving at 100 rpm. The cutting speed is nearly |
| A. | 50 metres per minute |
| B. | 40 metres per minute |
| C. | 30 metres per minute |
| D. | 60 metres per minute |
| E. | 70 metres per minute |
| Answer» D. 60 metres per minute | |
| 39. |
Out of the following materials which one is expected to have highest melting point? |
| A. | Lead |
| B. | Tungsten |
| C. | Palladium |
| D. | Silver |
| E. | Gold |
| Answer» B. Tungsten | |
| 40. |
Which of the following is not used for orthogonal cutting? |
| A. | Drills |
| B. | Slotting cutter |
| C. | Parting off |
| D. | Sawing |
| E. | Broaching |
| Answer» A. Drills | |
| 41. |
Vacuum is the medium of machining in cases of |
| A. | Ultrasonic machining |
| B. | Laser beam machining |
| C. | Plasma arc machining |
| D. | Electro discharge machining |
| E. | Electron beam machining |
| Answer» E. Electron beam machining | |
| 42. |
A job made by forging is |
| B. | Parting off |
| C. | Weaker than a job made by casting or machining |
| E. | Stronger than a job made by casting or machining |
| Answer» E. Stronger than a job made by casting or machining | |
| 43. |
In metal cutting operations shear angle is defined as the angle |
| A. | Made by the plane of shear with the direction of tool travel |
| B. | Made by the shear plane with the tool axis |
| C. | Made by shear plane with the central plane of work piece |
| D. | None of the above |
| E. | Wood |
| Answer» A. Made by the plane of shear with the direction of tool travel | |
| 44. |
In which of the following machining process thermoelectric energy is used for machining operations? |
| A. | Ion beam machining |
| B. | Electro discharge maching |
| C. | Laser beam machining |
| D. | Electro beam machining |
| E. | All of the above |
| Answer» E. All of the above | |
| 45. |
A shim is |
| A. | A surface on which bearings are fitted |
| B. | A treatment given to a surface to prevent rusting |
| C. | A kind of shrink fit |
| D. | A thin piece of sheet metal used between mating parts to provide the proper distance |
| E. | A dull corner on a shaft |
| Answer» D. A thin piece of sheet metal used between mating parts to provide the proper distance | |
| 46. |
For the measurement of pressure of liquids at high temperature using pressure gauge |
| A. | Gauge is heated to the temperature to be measured |
| B. | Necessary thermodynamic calculations are made |
| C. | Necessary correction factory is applied |
| D. | A siphon filled with liquid is used to protect the Bourdon tube |
| E. | Pressure gauge is never used in such cases |
| Answer» D. A siphon filled with liquid is used to protect the Bourdon tube | |
| 47. |
Work holding faces of a bench vice are |
| B. | Grooved |
| C. | Parting off |
| D. | Serrated |
| E. | Smooth |
| Answer» D. Serrated | |
| 48. |
Balometers are used for the measurement of |
| A. | Temperature input |
| B. | Thermal radiation |
| C. | Electrical input |
| D. | Optical input |
| E. | Pneumatic input |
| Answer» B. Thermal radiation | |
| 49. |
A steady rest is used for |
| A. | Long jobs |
| B. | Irregular jobs |
| C. | Large diameter jobs |
| D. | Threading jobs |
| E. | All of the above |
| Answer» A. Long jobs | |
| 50. |
If the rake angle on a HSS lathe tool is 25 degrees the materials being machined is |
| A. | Cast iron |
| B. | Aluminium |
| C. | Mild steel |
| D. | Carbon steel |
| E. | High speed steel |
| Answer» B. Aluminium | |
| 51. |
Which of the following is an inert gas? |
| A. | Carbondioxide |
| B. | Carbon monoxide |
| C. | Nitrogen |
| D. | Argon |
| E. | All of the above |
| Answer» D. Argon | |
| 52. |
In lathe machine the chasing dial is used during |
| A. | Taper turning |
| B. | Drilling |
| C. | Parting off |
| D. | Thread cutting |
| E. | Knurling |
| Answer» D. Thread cutting | |
| 53. |
The depth of cut depends on the |
| A. | curring speed |
| B. | rigidity of machine tool |
| C. | tool material |
| D. | all of the above |
| E. | Parting off |
| Answer» D. all of the above | |
| 54. |
Which of the following is a gear finishing operation? |
| A. | Gear burnishing |
| B. | Phosphate coating |
| C. | Gear lapping |
| D. | All of the above |
| E. | Parting off |
| Answer» D. All of the above | |
| 55. |
While cutting with a hacksaw, the number of teeth contacting the job should be |
| A. | More than one |
| B. | Only one |
| C. | Any of (A) or (B) |
| E. | Parting off |
| Answer» A. More than one | |
| 56. |
Which one of the following is not included in the combinations set? |
| A. | A centre head |
| B. | A protector |
| C. | Square |
| D. | A rule |
| E. | Short rule |
| Answer» E. Short rule | |
| 57. |
Choose the incorrect statement. The mechanism of tool wear is |
| A. | oxidation |
| B. | reduction |
| C. | diffusion |
| D. | None of the above |
| E. | Parting off |
| Answer» B. reduction | |
| 58. |
Discontinuous type chips are generally produced in |
| A. | Alloy steels |
| B. | Cast iron |
| C. | Aluminium |
| D. | Duralumin |
| E. | Mild steel |
| Answer» B. Cast iron | |
| 59. |
Yellow colour on a pattern indicates |
| A. | Seat for loose core prints |
| B. | Surface to be left unmachined |
| C. | Surface to be machined |
| D. | Fillets |
| E. | Core prints |
| Answer» C. Surface to be machined | |
| 60. |
Taper shank on drills is provided for |
| A. | Use on tapered surfaces |
| B. | Eye |
| C. | Quick intersection in spindle |
| D. | None of these |
| E. | Drilling taper holes |
| Answer» C. Quick intersection in spindle | |
| 61. |
Coated tools are good at |
| A. | reducing machining cost |
| B. | increasing surface finish on scoled surfaces |
| C. | reducing diffusion wear |
| D. | None of the above |
| E. | Carmetting |
| Answer» C. reducing diffusion wear | |
| 62. |
Noise level in case of an aircraft is |
| A. | In the range of 80 - 110 db |
| B. | Always more than 100 db |
| C. | Generally less than 100 db |
| D. | In the range of 60 - 80 db |
| E. | Generally more than 100 db |
| Answer» B. Always more than 100 db | |
| 63. |
A process of zinc diffusion is known as |
| A. | Brazing |
| B. | Anodising |
| C. | Sintering |
| D. | Sherardizing |
| E. | Metallizing |
| Answer» D. Sherardizing | |
| 64. |
Which of the following can be used to produce laser? |
| A. | Diamond |
| B. | Gold |
| C. | Platinum |
| D. | Emerald |
| E. | Ruby |
| Answer» E. Ruby | |
| 65. |
The accuracy of a limit gauge can be checked by |
| A. | Vernier caliper |
| B. | Micrometer |
| C. | Slip gauge |
| D. | Sine bar |
| E. | Any of the above |
| Answer» C. Slip gauge | |
| 66. |
The tool used for grooving a seam is called |
| A. | Parting off |
| B. | Breasing stake |
| C. | Rivet set |
| D. | Groover |
| Answer» D. Groover | |
| 67. |
The tool may fail suddenly because of |
| A. | crater wear |
| B. | both crater and flank wear |
| C. | spalling |
| D. | Parting off |
| E. | flank wear |
| Answer» C. spalling | |
| 68. |
Knurling is an operation |
| A. | Of cutting smooth collars |
| B. | Of under cutting |
| C. | Done prior to screw cutting |
| D. | Of generally roughing the surface for hand grip |
| E. | Done without use of coolant |
| Answer» D. Of generally roughing the surface for hand grip | |
| 69. |
Which of the following material has maximum shrinkage during solidification? |
| A. | Parting off |
| B. | Copper |
| C. | Aluminium |
| D. | Steel |
| E. | Cast iron |
| Answer» C. Aluminium | |
| 70. |
Which of the following process is preferred for cutting and welding of nonferrous metals? |
| A. | Submerged arc welding |
| B. | Inert gas arc welding |
| C. | MIG welding |
| D. | DC arc welding |
| E. | None of the above |
| Answer» B. Inert gas arc welding | |
| 71. |
The riser in a mould should be located in such a way so that |
| A. | it touches all parts of the casting |
| B. | it is first to receive the molten metal |
| C. | Parting off |
| D. | it is last to solidify |
| E. | it is first to solidify |
| Answer» D. it is last to solidify | |
| 72. |
In a drilling operation |
| A. | Torque is equal to the axial force |
| B. | Torque is more than the axial force |
| C. | None of above |
| D. | Torque is half the axial force |
| E. | Torque is less than the axial force |
| Answer» D. Torque is half the axial force | |
| 73. |
Poor fusion in a welded joint may be due to |
| A. | Lack of flux |
| B. | Improper current |
| C. | High welding speed |
| D. | Dirty metal surface |
| E. | None of the above |
| Answer» B. Improper current | |
| 74. |
Merchant's machinability constant is |
| A. | 2 ? - ? - ? |
| B. | 500 tons to 1000 tons |
| C. | 2 ? - ? + ? |
| D. | ? + ? - ? |
| E. | 2 ? + ? - ? |
| Answer» E. 2 ? + ? - ? | |
| 75. |
Type of gears used in electric switch gear is |
| A. | Bevel gears |
| B. | Herringbone gears |
| C. | Gears are not used in switch gear |
| D. | Helical gears |
| E. | Spiral gears |
| Answer» C. Gears are not used in switch gear | |
| 76. |
The power consumption in laser beam machining is of the order of |
| A. | 2 kW/m3/min |
| B. | 270 kW/m3/min |
| C. | 2700 kW/m3/min |
| D. | 5000 kW/m3/min |
| E. | 27 kW/m3/min |
| Answer» C. 2700 kW/m3/min | |
| 77. |
A foil is |
| A. | Same as sheet |
| B. | Same as strip |
| C. | A cold rolled sheet |
| D. | A thin strip with maximum width 300 mm and a maximum thickness of 1.5 mm |
| E. | None of the above |
| Answer» D. A thin strip with maximum width 300 mm and a maximum thickness of 1.5 mm | |
| 78. |
Vertical centrifugal castings as compared to horizontal centrifugal castings are spun at |
| A. | Lower speeds |
| B. | Higher speeds |
| C. | Same speed |
| D. | Varying speeds |
| E. | None of the above |
| Answer» B. Higher speeds | |
| 79. |
For a peripheral speed of 35 m/s, a grinding wheel of 800 mm diameter must rotate at |
| A. | 1600 rpm |
| B. | 835 rpm |
| C. | 435 rpm |
| D. | 60 rpm |
| E. | 85 rpm |
| Answer» B. 835 rpm | |
| 80. |
In a lathe gear box if first four consecutive speed are 19, 30, 47, 74 rpm, the next speed would be |
| A. | 116 rpm |
| B. | 104 rpm |
| C. | 111 rpm |
| D. | 93 rpm |
| E. | 101 rpm |
| Answer» A. 116 rpm | |
| 81. |
EDM is generally preferred for |
| A. | Hard materials |
| B. | Cast materials |
| C. | Non-metallic compounds |
| D. | Non-ferrous materials |
| E. | Polymers |
| Answer» A. Hard materials | |
| 82. |
Grey iron is usually welded by |
| A. | Resistance welding |
| B. | Arc welding |
| C. | TIG welding |
| D. | Gas welding |
| E. | MIG welding |
| Answer» D. Gas welding | |
| 83. |
The machine allowance on castings does depend on |
| A. | Size of the casting |
| B. | Shape of the casting |
| C. | Temperature of molten material |
| D. | All of the above |
| E. | None of the above |
| Answer» C. Temperature of molten material | |
| 84. |
A strip is |
| A. | A section other than rectangular |
| B. | A sheet less than 6 mm in thickness and 300 mm in width |
| C. | A cold rolled sheet |
| D. | Same as sheet |
| E. | Same as plate |
| Answer» B. A sheet less than 6 mm in thickness and 300 mm in width | |
| 85. |
On a die accurate holes are to be drilled. Which machine would you prefer for this operation? |
| A. | Parting off |
| B. | Radial drilling machine |
| C. | Portable drilling machine |
| D. | Jig boring machine |
| E. | Multi-pindle drilling machine |
| Answer» D. Jig boring machine | |
| 86. |
Which one of the following is used for thermocouple junctions? |
| A. | Muntz metal |
| B. | Elinvar |
| C. | Manganin |
| D. | Duralumin |
| E. | Nichrome |
| Answer» C. Manganin | |
| 87. |
The property due to which sand grains stick together is known as |
| A. | adhesiveness |
| B. | Parting off |
| C. | permeability |
| D. | cohesiveness |
| E. | plasticity |
| Answer» D. cohesiveness | |
| 88. |
In case of very hard surfaces the Brinell Hardness test method fails to give reliable results because |
| A. | Ball does not force into the metal |
| B. | Ball deforms on very hard surfaces |
| C. | Ball slips along the surface |
| D. | It is generally not desired to use this method in such cases |
| E. | None of the above |
| Answer» B. Ball deforms on very hard surfaces | |
| 89. |
Shot blasting is |
| A. | Process of cleaning moulding sand |
| B. | Process of cleaning spherical objects only |
| C. | Process of supplying blast of hot air to cupola |
| D. | Process of cleaning castings |
| E. | Process of cleaning core sand |
| Answer» D. Process of cleaning castings | |
| 90. |
Which of the following source for laser beam can give the highest power density (W/mm2)? |
| A. | Laser continuous |
| B. | Plasma arc |
| C. | Laser pulsed |
| D. | All have the same power density |
| E. | Electron beam |
| Answer» C. Laser pulsed | |
| 91. |
A flycutter is used on |
| A. | Planer |
| B. | Slotter |
| C. | Shaper |
| D. | Milling machine |
| E. | Lathe |
| Answer» D. Milling machine | |
| 92. |
High rate of oscillation of tools in ultrasonic machining is produced by |
| A. | Pneumatic generator |
| B. | Explosives |
| C. | D.C. motor |
| D. | Oscillator |
| E. | A.C. motor |
| Answer» D. Oscillator | |
| 93. |
Slip gauges are made of |
| A. | Aluminium |
| B. | Copper |
| C. | Alloy steel |
| D. | Stainless steel |
| E. | Cast iron |
| Answer» C. Alloy steel | |
| 94. |
A third flask sometimes used between cope and drag is called |
| A. | Core |
| B. | Middle |
| C. | Check |
| D. | Riddle |
| E. | Fillet |
| Answer» C. Check | |
| 95. |
Which of the following is a ferrous cutting tool? |
| A. | Diamond |
| B. | Cast carbides |
| C. | HSS |
| D. | Ceramics |
| E. | Parting off |
| Answer» C. HSS | |
| 96. |
Gear cutter No. 1 for cutting gears on milling machine is used for |
| A. | 17 to 20 teeth |
| B. | 135 to 150 teeth |
| C. | 12 to 13 teeth |
| D. | Racks only |
| E. | 55 to 120 teeth |
| Answer» B. 135 to 150 teeth | |
| 97. |
DIN specifications have been developed in |
| A. | Austria |
| B. | Russia |
| C. | America |
| D. | Germany |
| E. | England |
| Answer» D. Germany | |
| 98. |
A steady rest is used |
| A. | During taper turning |
| B. | During threading operation |
| C. | For supporting the bed |
| D. | While cutting heavy and log jobs |
| E. | During finishing operation |
| Answer» D. While cutting heavy and log jobs | |
| 99. |
During electron beam welding the vacuum is of the order of |
| A. | 10-5 torr |
| B. | 1 torr |
| C. | 10-3 torr |
| D. | 10-4 torr |
| E. | 10-2 torr |
| Answer» A. 10-5 torr | |
| 100. |
Which one does not fit with rest in the following? |
| A. | Jaw chuck |
| B. | Drill |
| C. | Tapping |
| D. | Reamer |
| E. | Pipe cutter |
| Answer» E. Pipe cutter | |
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