MCQOPTIONS
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MCQOPTIONS
This section includes 42 Mcqs, each offering curated multiple-choice questions to sharpen your Advanced Machining knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IC engine cylinder bores are finished in best way by: |
| A. | Grinding |
| B. | Lapping |
| C. | Honing |
| D. | Spot facing |
| Answer» D. Spot facing | |
| 2. |
A Ø 6H7 hole is to be reamed in a steel work piece. What size of drill will be required? |
| A. | 5.5 mm |
| B. | 5.8 mm |
| C. | 6.0 mm |
| D. | 6.2 mm |
| Answer» C. 6.0 mm | |
| 3. |
Making a hole in a metal piece is called ______. |
| A. | finishing |
| B. | drilling |
| C. | facing |
| D. | knurling |
| Answer» C. facing | |
| 4. |
Clogging of workpiece material in grinding wheel means |
| A. | Dressing |
| B. | Trueing |
| C. | Loading |
| D. | Glazing |
| Answer» D. Glazing | |
| 5. |
In a drill bit the angle between the chisel edge and the cutting lip is known as |
| A. | Chisel edge angle |
| B. | Lip angle |
| C. | Rake angle |
| D. | Helix angle |
| Answer» B. Lip angle | |
| 6. |
Drill chucks are fitted on the drilling machine spindle by means of ____ |
| A. | Arbor |
| B. | Drift |
| C. | Knurled ring |
| D. | Pinion & key |
| Answer» B. Drift | |
| 7. |
Anodizing is a process of protecting a _______ surface. |
| A. | Iron |
| B. | Steel |
| C. | Aluminium |
| D. | Cast iron |
| Answer» D. Cast iron | |
| 8. |
Following which things must be watched when sharpening a drill. |
| A. | Shank |
| B. | Margin |
| C. | Flute |
| D. | Angle of lips |
| Answer» E. | |
| 9. |
Drill chucks are held on the machine spindle by means of _________. |
| A. | arbor |
| B. | Drift |
| C. | draw-in bar |
| D. | chuck nut |
| Answer» B. Drift | |
| 10. |
Boring is a process of ______. |
| A. | finishing the hole |
| B. | making external threads |
| C. | enlarging a hole |
| D. | making a hole |
| Answer» D. making a hole | |
| 11. |
If the major diameter of an ISO thread is 6 mm and the pitch is 1 mm the recommended tap drill diameter is |
| A. | 5 mm |
| B. | 6 mm |
| C. | 4 mm |
| D. | 7 mm |
| Answer» B. 6 mm | |
| 12. |
A wedge-like tool which is used for removing the taper shank tools from the nose of the machine spindle, is called as _________ |
| A. | Drill chuck |
| B. | Drill key |
| C. | Drill socket |
| D. | Drill drift |
| Answer» E. | |
| 13. |
How do you recognize a drill for soft metal |
| A. | By the large helix angle |
| B. | Based on cutting parameters |
| C. | By the small helix angle |
| D. | Based on required hole diameter |
| Answer» B. Based on cutting parameters | |
| 14. |
Helix angle in the twist drill determines the |
| A. | Clearance angle |
| B. | Rake Angle |
| C. | Point angle |
| D. | Inclination |
| Answer» C. Point angle | |
| 15. |
A mild steel job is to be turned to 12 mm diameter on a center lathe. The cutting speed is 25 m/min. Calculate the rpm. |
| A. | 763.15 |
| B. | 663.15 |
| C. | 863.15 |
| D. | 963.15 |
| Answer» C. 863.15 | |
| 16. |
A drift is used for ______. |
| A. | drawing a drill location |
| B. | fixing chuck on the machine spindle |
| C. | removing the drill from the machine spindle |
| D. | removing a broken drill from the work |
| Answer» D. removing a broken drill from the work | |
| 17. |
Choose a drilling machine for drilling multiple holes of larger diameters |
| A. | Sensitive bench drilling machine |
| B. | Pillar drilling machine |
| C. | Column drilling machine |
| D. | Radial drilling machine |
| Answer» E. | |
| 18. |
A hole, which is not made through full depth of the component is known as _________? |
| A. | through hole |
| B. | blind hole |
| C. | steeped hole |
| D. | all of the above |
| Answer» C. steeped hole | |
| 19. |
For the same cutting speed, larger diameter drills will have ______ rpm compared to smaller diameter drills. |
| A. | Higher |
| B. | Same |
| C. | Lesser |
| D. | None of the above |
| Answer» D. None of the above | |
| 20. |
Honing is used for the finishing of a/an ____. |
| A. | internal cylindrical surface |
| B. | cast iron surface |
| C. | irregular flat surface |
| D. | intricate groove surface |
| Answer» B. cast iron surface | |
| 21. |
In a boring operation, the amount of 1 mm cut will increase the diameter of__ mm. |
| A. | 1 |
| B. | 1.5 |
| C. | 2 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 22. |
If you want to drill a hole in a switchboard, then you will use a ____. |
| A. | pillar-drill machine |
| B. | radial-drill machine |
| C. | hand-drill machine |
| D. | bench-drill machine |
| Answer» D. bench-drill machine | |
| 23. |
Find the tap drill size, if the major diameter is 10 mm and the pitch is 1.5 mm. |
| A. | 8 mm |
| B. | 8.5 mm |
| C. | 7.5 mm |
| D. | 9 mm |
| Answer» C. 7.5 mm | |
| 24. |
In the process of dressing of grinding wheels to restore sharpness is done by _____. |
| A. | sharp edged H.S.S cutter |
| B. | tool steel dresser |
| C. | pumice stone dresser |
| D. | diamond dresser |
| Answer» E. | |
| 25. |
In which process the machined component is neaten and smooth form rough edges or ridges manually? |
| A. | Buffing |
| B. | Grinding |
| C. | Turning |
| D. | Deburring |
| Answer» E. | |
| 26. |
Grinding fluids are mainly used to, |
| A. | Reduce the friction between the wheel face and the job |
| B. | Wash away chips |
| C. | Prevent loading of wheel |
| D. | Improve the finish |
| Answer» C. Prevent loading of wheel | |
| 27. |
Dressing of a grinding wheel refers to |
| A. | Restoring the cutting action of the wheel |
| B. | Shaping of the wheel |
| C. | Making the wheel concentric with the axis |
| D. | Changing the wheel |
| Answer» B. Shaping of the wheel | |
| 28. |
If the recommended cutting speed of mild steel is 20 m/min, what is the rotational speed (rpm) required for a ϕ20 mm drill bit? |
| A. | 320 rpm |
| B. | 1050 rpm |
| C. | 120 rpm |
| D. | 2100 rpm |
| Answer» B. 1050 rpm | |
| 29. |
Groves provided on the entire length of the body of a twist drill are called |
| A. | Webs |
| B. | Lips |
| C. | Flutes |
| D. | Margins |
| Answer» D. Margins | |
| 30. |
Find out the speed setting (rpm) for a high-speed steel drill D24 to cut a workpiece of phosphor bronze. The maximum cutting speed with HSS for Phosphor Bronze is 35 m/min. |
| A. | 400 |
| B. | 200 |
| C. | 1000 |
| D. | 600 |
| Answer» B. 200 | |
| 31. |
WHAT_IS_THE_EXPECTED_LIFE_OF_THE_NOZZLES_USED_IN_WJM??$ |
| A. | 10 hrs |
| B. | 20 hrs |
| C. | 100 hrs |
| D. | 200 hrs |
| Answer» E. | |
| 32. |
What are the uses of catcher in machining system of Water jet machining?$ |
| A. | Collecting dirt |
| B. | Collection of debris |
| C. | Reduce noise levels |
| D. | All of the mentioned |
| Answer» E. | |
| 33. |
Which of the following does not damage the nozzle used in Water jet machining?$ |
| A. | Particles of dirt |
| B. | Mineral deposits |
| C. | Water |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 34. |
What are the values of typical tube diameters in the machining system in WJM? |
| A. | 0.1 to 1 mm |
| B. | 1 to 6 mm |
| C. | 6 to 14 mm |
| D. | 14 to 25 mm |
| Answer» D. 14 to 25 mm | |
| 35. |
On which property of water, will the accumulator in Water jet machining rely on? |
| A. | Density |
| B. | Compressibility |
| C. | Viscosity |
| D. | Velocity |
| Answer» C. Viscosity | |
| 36. |
Intensifier increases the pressure water by which of the following values? |
| A. | 10 – 100 MPa |
| B. | 100 – 200 MPa |
| C. | 200 – 400 MPa |
| D. | 400 – 1000 MPa |
| Answer» D. 400 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1000 MPa | |
| 37. |
Which of the following are the components of intensifier present in water jet machining system? |
| A. | Piston |
| B. | Plunger |
| C. | Limit switch |
| D. | All of the mentioned. |
| Answer» E. | |
| 38. |
What is the general power rating of the hydraulic pump, used in WJM? |
| A. | 10 kW |
| B. | 20 kW |
| C. | 30 kW |
| D. | 40 kW |
| Answer» D. 40 kW | |
| 39. |
Which of the following is not a part of machining system of Water jet machining? |
| A. | Transducer |
| B. | Accumulator |
| C. | Jet cutting nozzle |
| D. | Hydraulic pump |
| Answer» B. Accumulator | |
| 40. |
What is the velocity of water jet stream in water jet machining? |
| A. | 100 m/sec |
| B. | 300 m/sec |
| C. | 700 m/sec |
| D. | 900 m/sec |
| Answer» E. | |
| 41. |
What is the key element of water jet machining for material removal? |
| A. | Tool Holder |
| B. | Work piece |
| C. | Water jet |
| D. | Power source |
| Answer» D. Power source | |
| 42. |
What is the full form of WJM in advanced machining processes? |
| A. | Water Jack Manufacturing |
| B. | Water Jet Machining |
| C. | Water Jet Manufacturing |
| D. | Water Jack Manufacturing |
| Answer» C. Water Jet Manufacturing | |