MCQOPTIONS
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MCQOPTIONS
This section includes 71 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
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» D. All of the above | |
| 52. |
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» B. Continuous dress creep feed grinding | |
| 53. |
In electrochemical grinding, grinding wheel is |
| A. | Positively charged |
| B. | Negatively charged |
| C. | Grounded |
| D. | Any of the above |
| Answer» C. Grounded | |
| 54. |
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» E. | |
| 55. |
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» B. Rotated by separate motors and at same speed. | |
| 56. |
In centerless grinding, workpiece is supported by |
| A. | Centers |
| B. | Chuck |
| C. | Work rest |
| D. | All of the above |
| Answer» D. All of the above | |
| 57. |
In lathe, form tools are used to produce |
| A. | Cylindrical surfaces |
| B. | Tapered surfaces |
| C. | The surfaces which are neither cylindrical nor tapered |
| D. | Threads |
| Answer» D. Threads | |
| 58. |
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» B. Melts and vaporizes | |
| 59. |
To cut a screw of 3mm pitch on Lathe machine having same speeds of spindle and lead screw, the tool should move, parallel to the axis of the work, a distance of ____ for every revolution of the spindle. |
| A. | 1.5 mm |
| B. | 3 mm |
| C. | 4.5 mm |
| D. | 6 mm |
| Answer» C. 4.5 mm | |
| 60. |
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» B. Crank and connecting rod mechanism | |
| 61. |
Internal keyway in gears can be cut in |
| A. | Shaping machine |
| B. | Planning machine |
| C. | Slotting machine |
| D. | None of the above |
| Answer» D. None of the above | |
| 62. |
The following is used in Magnetic chucks |
| A. | Electromagnet |
| B. | Permanent magnet |
| C. | Both A and B |
| D. | None of the above |
| Answer» D. None of the above | |
| 63. |
The following is also known as Tool rest |
| A. | Saddle |
| B. | Cross slide |
| C. | Compound rest |
| D. | Tool post |
| Answer» D. Tool post | |
| 64. |
The following is used to turn very long job between centers on a lathe. |
| A. | Steady rest |
| B. | Follower rest |
| C. | Compound rest |
| D. | All of the above |
| Answer» B. Follower rest | |
| 65. |
The following is used to support too flexible job very close to the cutting edge. |
| A. | Steady rest |
| B. | Follower rest |
| C. | Compound rest |
| D. | All of the above |
| Answer» C. Compound rest | |
| 66. |
The following is used for holding bored parts for machining their outside surfaces on Lathe. |
| A. | Mandrel |
| B. | Dogs |
| C. | Driving plate |
| D. | Angle plate |
| Answer» B. Dogs | |
| 67. |
Which of the following attachments can be used on Centre lathe? |
| A. | Grinding |
| B. | Milling |
| C. | Copying |
| D. | All of the above |
| Answer» E. | |
| 68. |
The following is taper turning method on lathe |
| A. | Tail stock set-over method |
| B. | By swivelling the compound rest |
| C. | Using a broad nose tool |
| D. | All of the above |
| Answer» E. | |
| 69. |
For correct setting for turning operation in a lathe machine, the tool nose should touch the workpiece _____ horizontal line which is parallel to and at the same level as the axis of correctly centred workpiece. |
| A. | Exactly on a |
| B. | Above the |
| C. | Below the |
| D. | Any of the above |
| Answer» B. Above the | |
| 70. |
The axial advancement in one rotation of the screwed part is known as ____ of the threads. |
| A. | Pitch |
| B. | Lead |
| C. | Pitch diameter |
| D. | Helix |
| Answer» C. Pitch diameter | |
| 71. |
External threads can be produced by means of |
| A. | Taps |
| B. | Dies |
| C. | Lathe machine |
| D. | All of the above |
| Answer» E. | |