MCQOPTIONS
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MCQOPTIONS
This section includes 115 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements is true? 1. P and nP charts cannot use limit gauges 2. P charts are difficult to understand 3. P charts cannot recognize different degrees of defectiveness in units |
| A. | Only 1 |
| B. | Only 2 |
| C. | Only 3 |
| D. | All the statements are true |
| Answer» D. All the statements are true | |
| 2. |
Which of the following statements is true for LVDT? |
| A. | It is a mutual capacitive transducer |
| B. | Presence of hysteresis gives high repeatability |
| C. | It can measure displacement and pressure |
| D. | All of the above |
| Answer» D. All of the above | |
| 3. |
Which of the following statements is/are false? 1. Fault tree analysis method is used to determine reliability of product 2. The goal of Six Sigma is to reduce number of defects to 2.4 parts per billion 3. Six sigma is represented by normal distribution curve 4. Poka yoke is a policy which prevents occurrence of human errors |
| A. | Only statement 3 |
| B. | Statement 2 and statement 3 |
| C. | Statement 1, 3 and 4 |
| D. | Only statement 2 |
| Answer» E. | |
| 4. |
Which of the following statements is/are false for Co-ordinate measuring machine? |
| A. | Conventional comparators have greater accuracy than co-ordinate measuring machines |
| B. | Gantry type of co-ordinate measuring machine use inductive transducers for measurement |
| C. | Loading and unloading operations are easily done by cantilever type of co-ordinate measuring machine |
| D. | All the statements are false |
| Answer» B. Gantry type of co-ordinate measuring machine use inductive transducers for measurement | |
| 5. |
Which of the following statements is/are true? 1. Gross errors are known as compensating errors 2. Systematic errors are caused due to system interaction errors 3. Probability laws are followed by systematic errors |
| A. | Only 1 |
| B. | Only 2 |
| C. | Only 3 |
| D. | All of the above |
| Answer» C. Only 3 | |
| 6. |
Which of the following statements is/are true? 1. Probability of acceptance decreases if acceptance number increases, when sampling size is kept constant 2. Indifferent quality range is the range between lot tolerance percent defective and acceptable quality level 3. Operating characteristics curve is the curve plotted between probability of acceptance and indifferent quality range |
| A. | Only 1 |
| B. | Only 2 |
| C. | Only 3 |
| D. | All the above statements are true |
| Answer» C. Only 3 | |
| 7. |
Which of the following statements is/are true? 1. Trend type of control chart pattern shows continuous movement of points upwards and downwards 2. Trend pattern occurs due to change in inspection method 3. Downward trend indicates wear of parts |
| A. | Only 1 |
| B. | Only 2 |
| C. | Only 3 |
| D. | All of the above |
| Answer» B. Only 2 | |
| 8. |
Which of the following statements is/are true according to Deming's Deadly Diseases? |
| A. | short term profits are very useful for long term goals |
| B. | mobility of management leads to stability |
| C. | merit rating leads to devastating |
| D. | all of the above |
| Answer» D. all of the above | |
| 9. |
Which of the following statements is/are true for sampling inspection? |
| A. | Acceptance sampling does not involve any risk |
| B. | Characteristics of the entire lot can be truly specified |
| C. | Less fatigue results in less mistakes |
| D. | All the above statements are true |
| Answer» D. All the above statements are true | |
| 10. |
Which of the following strategies of Deming's fourteen points is included into category of Management commitment? |
| A. | Institute leadership |
| B. | Encouraging education |
| C. | Eliminating exhortations |
| D. | Adopting new philosophy |
| Answer» E. | |
| 11. |
Which principle is used to measure distance in electronic comparator? |
| A. | Frequency modulation |
| B. | Radio oscillations |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
Which principle does Taylor-Hobson-Talysurf tester work on? |
| A. | Capacitive demodulating principle |
| B. | Intensity modulating principle |
| C. | Inductive modulating principle |
| D. | Carrier modulating principle |
| Answer» E. | |
| 13. |
Which sampling method is used when simple random sampling method becomes inconvenient to use in large lots? |
| A. | systematic sampling |
| B. | stratified sampling |
| C. | cluster sampling |
| D. | sampling in stages |
| Answer» C. cluster sampling | |
| 14. |
Which thread has a combined strength of square thread and V thread? |
| A. | Acme thread |
| B. | Knuckle thread |
| C. | Buttress thread |
| D. | British standard Whitworth thread |
| Answer» D. British standard Whitworth thread | |
| 15. |
Which type of chart uses the rule of 20:80? |
| A. | cause and effect chart |
| B. | Pareto chart |
| C. | fish bone diagram |
| D. | control chart |
| Answer» C. fish bone diagram | |
| 16. |
Which type of comparator changes its magnification, when distance between cross strip hinge and knife edge is varied? |
| A. | Johansson mickrocator |
| B. | Solex pneumatic comparator |
| C. | Projector comparator |
| D. | Sigma comparator |
| Answer» E. | |
| 17. |
Which type of deviation is observed while calculating hole dimensions? |
| A. | Positive |
| B. | Negative |
| C. | Zero |
| D. | All of the above |
| Answer» E. | |
| 18. |
Which type of errors show linear relation between cumulative pitch error and length of thread? |
| A. | Periodic errors |
| B. | Progressive errors |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» C. Both a. and b. | |
| 19. |
Which type of fringe is formed, if a path difference of λ/2 is observed in an interference pattern? |
| A. | Dark fringe |
| B. | Bright fringe |
| C. | Both bright and dark fringe overlap |
| D. | Unpredictable |
| Answer» B. Bright fringe | |
| 20. |
Which type of light source is used in N.P.L. type of flatness interferometer? |
| A. | Mercury vapour lamp |
| B. | Cadmium lamp |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» B. Cadmium lamp | |
| 21. |
Which type of surface in a fringe pattern exhibits the movement of fringes towards the centre? |
| A. | concave surface |
| B. | convex surface |
| C. | Both A & B |
| D. | None of these |
| Answer» B. convex surface | |
| 22. |
Which type of threads are used to transmit power in one direction? |
| A. | Square threads |
| B. | Buttress threads |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» C. Both a. and b. | |
| 23. |
Which type of tolerance does a slip gauge have? |
| A. | Unilateral tolerance |
| B. | Bilateral tolerance |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» C. Both a. and b. | |
| 24. |
Which type of tooth profile has double curvature? |
| A. | cycloidal tooth profile |
| B. | involute tooth profile |
| C. | both a. and b. |
| D. | none of the above |
| Answer» B. involute tooth profile | |
| 25. |
Why are pitch errors observed in threads? |
| A. | Lack of inspection |
| B. | Incorrect ratio of tool work velocity |
| C. | Interference between mating parts |
| D. | All of the above |
| Answer» C. Interference between mating parts | |
| 26. |
Which of the following statements are true? 1. Mechanical comparators are compact and easy to handle 2. Parallax error is never observed in mechanical comparator 3. Sigma comparator is a type of mechanical comparator 4. Mechanical comparators have low inertia which makes them sensitive to vibrations |
| A. | 1 and 2 |
| B. | 3 and 4 |
| C. | 1 and 3 |
| D. | All of the above |
| Answer» D. All of the above | |
| 27. |
Which of the following processes is used to monitor space signals of a space craft? |
| A. | Stroboscope |
| B. | Telemetry |
| C. | Pyrometer |
| D. | None of the above |
| Answer» C. Pyrometer | |
| 28. |
Which of the following methods is unreliable to evaluate the surface finish? |
| A. | Electrical stylus profilometer |
| B. | Wallace surface dynamometer |
| C. | Profilograph |
| D. | Tomlinson surface tester |
| Answer» C. Profilograph | |
| 29. |
Which of the following materials is/are used to make an angle gauge block? |
| A. | Hardening tool steel |
| B. | Nickel |
| C. | Tungsten carbide |
| D. | All of the above |
| Answer» E. | |
| 30. |
Which of the following is true for interference fit? |
| A. | Shaft is always smaller than the hole |
| B. | Shaft is always bigger than the hole |
| C. | Interference fits have shaft and hole of same dimension |
| D. | None of the above |
| Answer» C. Interference fits have shaft and hole of same dimension | |
| 31. |
Which of the following is tested for parallelism between trajectory and a plane? |
| A. | plane is on a component which moves |
| B. | plane is on a component which does not moves |
| C. | both a. and b. |
| D. | none of the above |
| Answer» D. none of the above | |
| 32. |
Which of the following is not a type of direct measuring instrument? |
| A. | micrometer |
| B. | vernier caliper |
| C. | divider |
| D. | All of the above |
| Answer» D. All of the above | |
| 33. |
Which of the following is a contact type of automated inspection method? |
| A. | Inspection probe |
| B. | Laser scanning |
| C. | Electric field |
| D. | All of the above |
| Answer» B. Laser scanning | |
| 34. |
Which of the following is a characteristic of End standard? |
| A. | accuracy of ± 0.2 mm |
| B. | accuracy of ± 0.050 mm |
| C. | accuracy of ± 0.001 mm |
| D. | accuracy of ± 1.00 mm |
| Answer» D. accuracy of ± 1.00 mm | |
| 35. |
Which of the following instruments is used to measure base pitch of a gear in base tangent method? |
| A. | Gear tooth vernier caliper |
| B. | David Brown tangent caliper |
| C. | David Brown tangent comparator |
| D. | David Brown tangent micrometer |
| Answer» D. David Brown tangent micrometer | |
| 36. |
Which of the following gives actual measurement of any specific dimension? |
| A. | Inspection by variables |
| B. | Inspection by attributes |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» B. Inspection by attributes | |
| 37. |
Which of the following errors are also known as cumulative errors? |
| A. | Random errors |
| B. | Systematic errors |
| C. | Gross errors |
| D. | System interaction errors |
| Answer» C. Gross errors | |
| 38. |
Which of the following components are inspected by a Tool maker's microscope? |
| A. | gauges |
| B. | screw threads |
| C. | dies and fixtures |
| D. | all of the above |
| Answer» E. | |
| 39. |
Which of the following causes is/are responsible for systematic errors? |
| A. | non linearity |
| B. | change in sensitivity |
| C. | zero offset |
| D. | All of the above |
| Answer» E. | |
| 40. |
Which method is used to test the straightness of an object? |
| A. | Indicator method |
| B. | Interference method |
| C. | Wedge method |
| D. | All of the above |
| Answer» D. All of the above | |
| 41. |
Which method is calculated considering geometric average of ordinates? |
| A. | Centre line average method |
| B. | Peak to valley height method |
| C. | Root mean square method |
| D. | All of the above |
| Answer» D. All of the above | |
| 42. |
Which method gives accurate results when effective diameter is measured without considering the thread angle? |
| A. | Two wire method |
| B. | Three wire method |
| C. | Best wire size |
| D. | All the above |
| Answer» D. All the above | |
| 43. |
Which ISO standard is used in international automobile companies to set automotive quality system standards ? |
| A. | ISO 14000 |
| B. | TS 16949 |
| C. | ISO 9000 |
| D. | none of the above |
| Answer» C. ISO 9000 | |
| 44. |
Which formula is used to calculate quality of performance? |
| A. | Quality of performance = quality of design + quality of conformance |
| B. | Quality of performance = quality of design - quality of conformance |
| C. | Quality of performance = quality of design + availability |
| D. | None of the above |
| Answer» B. Quality of performance = quality of design - quality of conformance | |
| 45. |
Which formula is used to calculate diametral pitch? |
| A. | (number of teeth) x (pitch circle diameter) |
| B. | (pitch circle diameter) / (number of teeth) |
| C. | (number of teeth) / (pitch circle diameter) |
| D. | none of the above |
| Answer» D. none of the above | |
| 46. |
Which error is observed due to lack of squareness when depth is measured using depth micrometer? |
| A. | parallax error |
| B. | cosine error |
| C. | sine error |
| D. | all of the above |
| Answer» C. sine error | |
| 47. |
Which dimensions can be measured using image shearing microscope? |
| A. | linear dimensions |
| B. | angular dimensions |
| C. | both linear and angular dimensions |
| D. | none of the above |
| Answer» B. angular dimensions | |
| 48. |
Which control chart pattern is/are used for assignable causes? |
| A. | Trend pattern |
| B. | Shift pattern |
| C. | Extreme variation pattern |
| D. | All of the above |
| Answer» E. | |
| 49. |
Which award is presented to different organizations for quality and excellent performance by president of USA? |
| A. | Malcolm Balbridge National Award |
| B. | Dr. W. Edward Deming National Award |
| C. | US Excellence Award |
| D. | None of the above |
| Answer» B. Dr. W. Edward Deming National Award | |
| 50. |
Which are the different techniques used by interpretation segments for interpretation? |
| A. | frame grabber and frame store |
| B. | template matching and weighting |
| C. | thresholding and edge detection |
| D. | all of the above |
| Answer» C. thresholding and edge detection | |