McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Mechanical Engineering .
Chapters
| 51. |
The use of coatings on milling cutters will increase the ____ of the tool. |
| A. | Surface hardness |
| B. | Corrosion resistance |
| C. | Surface finish |
| D. | Melting point |
| Answer» D. Melting point | |
| 52. |
Following coating(s) is (are) for milling cutters |
| A. | Titanium nitride (TiN) |
| B. | Titanium Carbonitride (TiCN) |
| C. | Aluminium Titanium Nitride (AlTiN) |
| D. | All of the above |
| Answer» B. Titanium Carbonitride (TiCN) | |
| 53. |
Gang milling refers to the use of two or more milling cutters mounted on the ____ arbor in a ____ milling set up. |
| A. | Same, vertical |
| B. | Same, horizontal |
| C. | Different, vertical |
| D. | Different, horizontal |
| Answer» A. Same, vertical | |
| 54. |
Following is (are) the type(s) of vertical mill |
| A. | Bed mill |
| B. | Turret mill |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» D. None of the above | |
| 55. |
A turret mill has a ____ spindle and the table is moved ____ to the spindle axis to accomplish cutting. |
| A. | Stationary, perpendicular |
| B. | Moving, parallel |
| C. | Stationary, both perpendicular and parallel |
| D. | Moving, perpendicular |
| Answer» C. Stationary, both perpendicular and parallel | |
| 56. |
In the bed mill, the table moves ____ to the spindle’s axis |
| A. | Only parallel |
| B. | Only perpendicular |
| C. | Both perpendicular and parallel |
| D. | Inclined |
| Answer» B. Only perpendicular | |
| 57. |
Following milling machine is used to cut gears |
| A. | Horizontal milling machine |
| B. | Vertical milling machine |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» A. Horizontal milling machine | |
| 58. |
Following type of gear(s) can be cut on milling machine |
| A. | Worm |
| B. | Spiral bevel |
| C. | Spur |
| D. | All of the above |
| Answer» D. All of the above | |
| 59. |
Jig borer are |
| A. | Built to bore holes |
| B. | Very light slot or face milling |
| C. | Typically bed mills with a long spindle throw |
| D. | All of the above |
| Answer» D. All of the above | |
| 60. |
Most CNC milling machines are |
| A. | Computer controlled vertical mills |
| B. | Used in diesinking |
| C. | Used in engraving applications |
| D. | All of the above |
| Answer» D. All of the above | |
| 61. |
Pocket milling is extensively used in |
| A. | Aerospace industry |
| B. | Shipyard industry |
| C. | Both (A) and (B) |
| D. | Agriculture industry |
| Answer» C. Both (A) and (B) | |
| 62. |
In end mill cutter, flutes of the milling bit are |
| A. | Deep helical grooves running up the cutter |
| B. | Sharp blade along the edge |
| C. | Holes |
| D. | None of the above |
| Answer» A. Deep helical grooves running up the cutter | |
| 63. |
In end mill cutter, chips are pulled up the |
| A. | Flute |
| B. | Tooth |
| C. | Tip |
| D. | Shank |
| Answer» A. Flute | |
| 64. |
End mills have cutting teeth |
| A. | At one end |
| B. | On the sides |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» C. Both (A) and (B) | |
| 65. |
Reciprocation of the cutting tool in shaping machines is accomplished by. |
| A. | Rack pinion mechanism |
| B. | Crank and connecting rod mechanism |
| C. | Cam and cam follower mechanism |
| D. | Oscillating lever mechanism |
| Answer» A. Rack pinion mechanism | |
| 66. |
Internal keyway in gears can be cut in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of the above |
| Answer» C. Slotting machine | |
| 67. |
The job reciprocates in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | slotting machine |
| D. | All of the above |
| Answer» D. All of the above | |
| 68. |
The T-slots in the table of planning machines are cut in. |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of these |
| Answer» D. None of these | |
| 69. |
Flat surface can be produced in |
| A. | Shaping machine only |
| B. | Planning machine only |
| C. | Slotting machine only |
| D. | All of the above |
| Answer» D. All of the above | |
| 70. |
Large number of cutting tools can be simultaneously used in. |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of these |
| Answer» D. None of these | |
| 71. |
Heavy cuts can be given during machining in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of these |
| Answer» C. Slotting machine | |
| 72. |
Slotting machines are used to cut internal gear teeth for |
| A. | Batch production |
| B. | Lot production |
| C. | Mass production |
| D. | None of these |
| Answer» C. Mass production | |
| 73. |
The work-table can rotate in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of these |
| Answer» C. Slotting machine | |
| 74. |
Length of the stroke can be varied in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | All of these |
| Answer» D. All of these | |
| 75. |
What is broaching? |
| A. | A machining process used for increasing the size of the existing hole |
| B. | A machining process used for grinding hardened steel |
| C. | A machining process used for making intricate holes accurately |
| D. | A machining process for removal of a layer of material of desired width and depth |
| Answer» D. A machining process for removal of a layer of material of desired width and depth | |
| 76. |
What is the main advantage of broaching over shaping process? |
| A. | Use of single point cutting tool which are inexpensive and can be grounded to any shape |
| B. | Thin or fragile jobs can be conveniently machined because of lower cutting forces |
| C. | Surfaces with obstruction can also be machined |
| D. | Removal of the whole material in one stroke |
| Answer» D. Removal of the whole material in one stroke | |
| 77. |
For which of the following operations, broaching can be used? |
| A. | Threading |
| B. | Grinding |
| C. | Spline cutting |
| D. | Increasing the size of the existing hole for a certain length |
| Answer» C. Spline cutting | |
| 78. |
Why push type broaches are made shorter in length? |
| A. | To reduce machining time |
| B. | To increase the efficiency |
| C. | For easy handling of the tool |
| D. | To avoid buckling |
| Answer» D. To avoid buckling | |
| 79. |
Why chip breakers are provided on the broach? |
| A. | To reduce machining time. |
| B. | To increase the cutting force by breaking the chips |
| C. | To reduce the friction between tool surface and the workpiece by breaking the chips |
| D. | To break up the wide curling chips |
| Answer» D. To break up the wide curling chips | |
| 80. |
Why neck section provided in the pull type broaches are made shorter in diameter? |
| A. | To provide better surface finish |
| B. | To remove chips easily |
| C. | To allow failure in case of overloading |
| D. | For holding purpose |
| Answer» C. To allow failure in case of overloading | |
| 81. |
In broaching, generally the broach remains fixed and the workpiece travels providing cutting velocity. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» B. False | |
| 82. |
How many types of broaches are there? |
| A. | 3 |
| B. | 5 |
| C. | 8 |
| D. | 9 |
| Answer» D. 9 | |
| 83. |
Which of the following broaches are re-sharpened by grinding at rake faces? |
| A. | Form relieved type |
| B. | Modular type |
| C. | Profile sharpened type |
| D. | Sectional type |
| Answer» A. Form relieved type | |
| 84. |
Which of the following type of broaches are sharpened or re-sharpened by grinding at the flank surfaces? |
| A. | Profile sharpened type |
| B. | Sectional type |
| C. | Segmented type |
| D. | Ordinary cut type |
| Answer» A. Profile sharpened type | |
| 85. |
Following is an abrasive cutting |
| A. | Milling |
| B. | Grinding |
| C. | Laser beam machining |
| D. | All of the above |
| Answer» B. Grinding | |
| 86. |
Grinding is best suited to the machining of |
| A. | Soft material |
| B. | Very hard material |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» B. Very hard material | |
| 87. |
Following process (es) is (are) subset(s) of grinding |
| A. | Honing |
| B. | Lapping |
| C. | Sanding |
| D. | All of the above |
| Answer» D. All of the above | |
| 88. |
The work holding device in surface grinding is known as |
| A. | Chuck |
| B. | Mandrel |
| C. | Tool post |
| D. | None of the above |
| Answer» A. Chuck | |
| 89. |
Grinding is commonly used on |
| A. | Aluminium |
| B. | Brass |
| C. | Plastic |
| D. | Cast Iron |
| Answer» D. Cast Iron | |
| 90. |
Which of the following material(s) tend to clog the cutting wheel |
| A. | Aluminium |
| B. | Brass |
| C. | Plastic |
| D. | All of the above |
| Answer» D. All of the above | |
| 91. |
Following is (are) the type of cylindrical grinding |
| A. | Outside diameter grinding |
| B. | Plunge grinding |
| C. | Centerless grinding |
| D. | All of the above |
| Answer» D. All of the above | |
| 92. |
In cylindrical grinder, how many centers hold the workpiece? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» B. Two | |
| 93. |
Most cylindrical grinding machines include a ___ to allow the forming of tapered piece. |
| A. | Grinding dog |
| B. | Swivel |
| C. | Center driver |
| D. | None of the above |
| Answer» B. Swivel | |
| 94. |
In cylindrical grinding, the abrasive wheel and the workpiece are |
| A. | Rotated by separate motors and at different speeds. |
| B. | Rotated by separate motors and at same speed. |
| C. | Rotated by single motor and at same speed. |
| D. | Any of the above |
| Answer» A. Rotated by separate motors and at different speeds. | |
| 95. |
In which of the grinding methods, rate of material removal is high? |
| A. | Surface grinding |
| B. | Cylindrical grinding |
| C. | Creep feed grinding |
| D. | All of the above |
| Answer» C. Creep feed grinding | |
| 96. |
In which of the following grinding methods, grinding wheel never need dressing |
| A. | High efficiency deep grinding |
| B. | Continuous dress creep feed grinding |
| C. | Surface grinding |
| D. | All of the above |
| Answer» A. High efficiency deep grinding | |
| 97. |
In centerless grinding, workpiece is supported by |
| A. | Centers |
| B. | Chuck |
| C. | Work rest |
| D. | All of the above |
| Answer» C. Work rest | |
| 98. |
Following is a type of centerless grinding |
| A. | Through feed grinding |
| B. | In feed grinding |
| C. | Internal centerless grinding |
| D. | All of the above |
| Answer» D. All of the above | |
| 99. |
In electrochemical grinding, grinding wheel is |
| A. | Positively charged |
| B. | Negatively charged |
| C. | Grounded |
| D. | Any of the above |
| Answer» B. Negatively charged | |
| 100. |
In electrochemical grinding, the pieces from the workpiece |
| A. | Are dissolved into the conductive fluid |
| B. | Melts and vaporizes |
| C. | Flushed out |
| D. | None of the above |
| Answer» A. Are dissolved into the conductive fluid | |
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