MCQOPTIONS
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MCQOPTIONS
This section includes 815 Mcqs, each offering curated multiple-choice questions to sharpen your Production Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about |
| A. | 0.20% |
| B. | 0.40% |
| C. | 0.60% |
| D. | 1.40% |
| E. | None of the above |
| Answer» D. 1.40% | |
| 502. |
Photoelectric transducers are used for the measurement of any phenomenon which can be used to produce |
| A. | Variation in current |
| B. | Variation in voltage |
| C. | Variation in light intensity |
| D. | Variation in flux density |
| E. | Any of the above |
| Answer» D. Variation in flux density | |
| 503. |
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» F. | |
| 504. |
In centrifugal castings, the cores are generally made of |
| A. | Green sand and molasses |
| B. | Plastic |
| C. | Wax |
| D. | Cores are not used |
| E. | Plaster of paris |
| Answer» E. Plaster of paris | |
| 505. |
Which of the following is not used for orthogonal cutting? |
| A. | Drills |
| B. | Slotting cutter |
| C. | Parting off |
| D. | Sawing |
| E. | Broaching |
| Answer» B. Slotting cutter | |
| 506. |
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» B. Copper and tin | |
| 507. |
Beak horn stake (Bick Iron) is used to |
| A. | Make circular folded seams |
| B. | Parting off |
| C. | Bend sheet metal into cylindrical/conical shapes |
| D. | Make straight and shorp bends |
| Answer» E. | |
| 508. |
In arc welding as the thickness of the material to be welded increases, the welding current requirement |
| A. | Decreases |
| B. | 8 mm |
| C. | Does not change |
| D. | Increases |
| Answer» F. | |
| 509. |
During arc welding the welding speed is too low, it is likely to result in |
| A. | Excessive pilling up of weld metal |
| B. | Overlapping without penetration edges |
| C. | Wastage of electrode material |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 510. |
For ultrasonic welding the thickness of metal is usually restricted to |
| A. | 15 mm |
| B. | 10 mm |
| C. | 25 mm |
| D. | 6 mm |
| E. | 3 mm |
| Answer» F. | |
| 511. |
The range of voltage (open circuit) in are welding is generally |
| A. | 20 - 40 V |
| B. | 100 - 150 V |
| C. | 40 - 90 V |
| D. | 150 - 230 V |
| E. | 400 - 440 V |
| Answer» D. 150 - 230 V | |
| 512. |
The type of bearing to be selected for application where low torque, low coefficient of friction, non-magnetic properties and long life are required would be |
| A. | Needle bearing |
| B. | Ball bearing |
| C. | Bush bearing |
| D. | Roller bearing |
| E. | Jewel bearing |
| Answer» F. | |
| 513. |
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» E. A.C. motor | |
| 514. |
Thermit welding differs from other methods of welding in the following way |
| A. | It does not use heat |
| B. | It employs exothermal chemical reaction for developing high temperature |
| C. | It is less time consuming |
| D. | It does not require electrodes |
| E. | None of the above |
| Answer» C. It is less time consuming | |
| 515. |
Weld spatter defect in welding is generally the result of |
| A. | Using too high welding current |
| B. | Using too low welding current |
| C. | Low voltage |
| D. | High voltage |
| E. | None of the above |
| Answer» B. Using too low welding current | |
| 516. |
Bearing lining |
| A. | Muntz metal |
| B. | Duralumin |
| C. | Babbit |
| D. | Bronze |
| E. | Delta metal |
| Answer» D. Bronze | |
| 517. |
Which machine can be used for grinding the ball bearing outer races |
| A. | Surface grinding machine |
| B. | Magnetic chuck grinding machine |
| C. | Universal grinding machine |
| D. | Centreless grinding machine |
| E. | Cylindrical grinding machine |
| Answer» E. Cylindrical grinding machine | |
| 518. |
2% Nickel in steel makes it suitable for |
| A. | Boiler plates, rivets etc |
| B. | Electronic valves |
| C. | Connecting rods |
| D. | Anti corrosion characteristics |
| E. | Turbine blade |
| Answer» B. Electronic valves | |
| 519. |
In ball bearing steels, chromium percentage is normally in the range |
| A. | 3 - 5 percent |
| B. | 14 - 16 percent |
| C. | 5 - 10 percent |
| D. | 1 - 2 percent |
| E. | 2 - 3 percent |
| Answer» C. 5 - 10 percent | |
| 520. |
In a stationary type mechanical seal the sealing ring is generally located |
| A. | In machine housing |
| B. | Along machine shaft |
| C. | Independently |
| D. | None of the above |
| E. | None of the above |
| Answer» B. Along machine shaft | |
| 521. |
Which of the following process has highest power consumption in kW/cm2/min? |
| A. | Plasma arc machining |
| B. | Electron beam machining |
| C. | Abrasive jet machining |
| D. | Electro chemical machining |
| E. | Ultrasonic machining |
| Answer» C. Abrasive jet machining | |
| 522. |
In Rockwell test for hardness on B scale |
| A. | A diamond cone is used |
| B. | A mechanite ball is used |
| C. | A steel hammer is used |
| D. | A steel ball is used |
| E. | A plastic hammer is used |
| Answer» E. A plastic hammer is used | |
| 523. |
During MIG welding the metal is transferred in the form of |
| A. | Metal is not transferred during MIG welding |
| B. | Solution |
| C. | Continuous flow of molten metal |
| D. | A fine spray of metal |
| E. | Electron beam |
| Answer» E. Electron beam | |
| 524. |
In induction hardening the depth of hardening can be controlled by controlling |
| A. | voltage |
| B. | power factor |
| C. | frequency |
| D. | current |
| E. | Parting off |
| Answer» D. current | |
| 525. |
The welding of steel structures on the site of a building is done by |
| A. | Arc welding |
| B. | Spot welding |
| C. | Projection welding |
| D. | Thermit welding |
| E. | TIG welding |
| Answer» B. Spot welding | |
| 526. |
For the measurement of pressure corrosive and highly viscous liquids with the halp of pressure gauge |
| A. | Gauge scale is modified |
| B. | Seal pots are used |
| C. | Bourdon tube of the gauge is changed |
| D. | Necessary corrections are applied |
| E. | Pressure gauge is never used in such situations |
| Answer» C. Bourdon tube of the gauge is changed | |
| 527. |
During metal cutting operation on machine tools, the major portion of heat is carried away by |
| A. | Chip and tool have identical heat dissipation |
| B. | Chip |
| C. | Work piece |
| D. | Chip tool and work piece have identical proportion of heat dissipation |
| E. | Tool |
| Answer» C. Work piece | |
| 528. |
In a turning operation on a horizontal axis lathe, the forces on tool act |
| A. | only in horizontal plane in the directions of feed and cut |
| B. | only in vertical plane in the direction of feed and vertically |
| C. | only in vertical plane in the direction of feed and radially |
| D. | None of the above |
| E. | Parting off |
| Answer» C. only in vertical plane in the direction of feed and radially | |
| 529. |
The surface of a slip gauge is produced by |
| A. | Milling |
| B. | Grinding |
| C. | Lapping |
| D. | Burnishing |
| E. | Any of the above |
| Answer» D. Burnishing | |
| 530. |
The purpose of an automatic process control system generally is |
| A. | To automatically produce goods |
| B. | To automatically detect inferior quality goods |
| C. | To automatically process the raw materials |
| D. | To direct the forces that give stable plant and process operation by maintaining desired values of process variables or conditions |
| E. | None of the above |
| Answer» E. None of the above | |
| 531. |
Gold ornaments are generally produced by |
| A. | Pressed casting |
| B. | Slush casting |
| C. | Investment casting |
| D. | Die-casting |
| E. | Centrifugal casting |
| Answer» B. Slush casting | |
| 532. |
The advantage of a pneumatically operated control system is |
| A. | It can be used in hazardous atmosphere |
| B. | Simplicity of components |
| C. | Easily maintained |
| D. | Relatively inexpensive |
| E. | All of the above |
| Answer» F. | |
| 533. |
The surface speed of grinding wheel in case of centreless grinding is |
| A. | 1000 - 1500 M/min |
| B. | 15 - 75 M/min |
| C. | 1500 - 1800 M/min |
| D. | 100 - 500 M/min |
| E. | 500 - 800 M/min |
| Answer» D. 100 - 500 M/min | |
| 534. |
An examiner has given the following as parts of drill bit. Find which one is not correct |
| A. | Cutting edge |
| B. | Eye |
| C. | Shank |
| D. | Point |
| E. | Dead centre |
| Answer» C. Shank | |
| 535. |
For soldering of brass and copper, the flux used is |
| A. | Zinc chloride |
| B. | Hydrochloric acid |
| C. | Cupric acid |
| D. | Ammonium chloride |
| E. | None of the above |
| Answer» B. Hydrochloric acid | |
| 536. |
Cold heading is a process of |
| A. | Electro-machining process |
| B. | Explosive forming |
| C. | High energy rate forming |
| D. | Pneumatic mechanical forming |
| E. | Chipless machining |
| Answer» F. | |
| 537. |
In manufacturing ERW tube the type of welding generally used is |
| A. | Induction welding |
| B. | Thermit welding |
| C. | Electrical resistance welding |
| D. | Gas welding |
| E. | Are welding |
| Answer» D. Gas welding | |
| 538. |
IS code considers how many types of steels for designating carbon content in the steel? |
| A. | 1 |
| B. | 4 |
| C. | Parting off |
| D. | 2 |
| E. | 3 |
| Answer» C. Parting off | |
| 539. |
A 20 number crucible |
| A. | Will have height of 20 cm |
| B. | Can take 20 cc of molten material |
| C. | Will have capacity to melt 20 kg of copper |
| D. | Will have internal diameter of 20 cm |
| E. | Can produce castings of 20 kg only |
| Answer» D. Will have internal diameter of 20 cm | |
| 540. |
The transmission lag in mercury thermometers is generally |
| A. | Low |
| B. | Average |
| C. | Negligible |
| D. | Very high |
| E. | High |
| Answer» B. Average | |
| 541. |
In instrumentation, registering is |
| A. | Production of continuous record on an instrument |
| B. | Conversion of signal from one form to another |
| C. | Indication by numbers or some other symbol of discrete increments, the value of some quantity |
| D. | To perform various manipulations before indicating or recording results |
| E. | None of the above |
| Answer» D. To perform various manipulations before indicating or recording results | |
| 542. |
A knee is a part of |
| A. | Lathe |
| B. | Jig boring machine |
| C. | Milling machine |
| D. | Breaching machine |
| E. | Shaper |
| Answer» D. Breaching machine | |
| 543. |
Duration which operation on a lathe machine, the spindle speed is usually the least? |
| A. | Finish turning |
| B. | Drilling |
| C. | Parting off |
| D. | Rough turning |
| E. | Knurling |
| Answer» F. | |
| 544. |
Which quality of fit is provided for plummer block bearings? |
| A. | H8f8 |
| B. | H6f6 |
| C. | H8d8 |
| D. | H6g5 |
| E. | None of the above |
| Answer» D. H6g5 | |
| 545. |
A bench vice is used for |
| A. | Filing the job |
| B. | Tapping the job |
| C. | Clamping the job |
| D. | Parting off |
| Answer» E. | |
| 546. |
To clean a hand file |
| A. | It is rubbed on stone |
| B. | File card is used |
| C. | It is dipped in dilute acid |
| D. | It is rubbed on wood |
| E. | It is dipped in water |
| Answer» C. It is dipped in dilute acid | |
| 547. |
The operation of cutting multiple holes is called |
| A. | perforating |
| B. | Parting off |
| C. | notching |
| D. | trimming |
| E. | lancing |
| Answer» B. Parting off | |
| 548. |
The audible spectrum of sound is in the range of |
| A. | 0 to 100 cps |
| B. | 30 to 15000 cps |
| C. | 15000 to 25000 cps |
| D. | 25000 to 10000 cps |
| E. | None of the above |
| Answer» C. 15000 to 25000 cps | |
| 549. |
Broaching is primarily done for |
| A. | mass production |
| B. | hard materials |
| C. | better finish |
| D. | cylindrical jobs |
| E. | Parting off |
| Answer» B. hard materials | |
| 550. |
Which of the following is considered to be non-machinable by conventional processes? |
| A. | Grey cast iron |
| B. | Silicon bronze |
| C. | Parting off |
| D. | While cast iron |
| E. | Cast copper |
| Answer» E. Cast copper | |