 
			 
			MCQOPTIONS
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				This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Metrology knowledge and support exam preparation. Choose a topic below to get started.
| 1. | Which of the following is used to detect the modulated reflected light from any irregularity on the surface? | 
| A. | Television camera | 
| B. | Light intensity sensor | 
| C. | Modulator | 
| D. | Video processor | 
| Answer» E. | |
| 2. | Which of the following is mounted on a robot arm for inspecting complicated surfaces? | 
| A. | Vision sensor | 
| B. | Proximity sensor | 
| C. | Heat sensor | 
| D. | Touch sensor | 
| Answer» B. Proximity sensor | |
| 3. | In order to have an interference fit, it is essential that the lower limit of the shaft should be: | 
| A. | Greater than upper limit of the hole | 
| B. | Lesser than upper limit of the hole | 
| C. | Greater than lower limit of the hole | 
| D. | Lesser than lower limit of the hole | 
| Answer» B. Lesser than upper limit of the hole | |
| 4. | By which of the following procedures, the slip gauges are joined together? | 
| A. | Reaming | 
| B. | Wringing | 
| C. | Heat treatment | 
| D. | Packing | 
| Answer» C. Heat treatment | |
| 5. | One micron is equal to ______ Centimetre. | 
| A. | 1/1000 | 
| B. | 1/100 | 
| C. | 1/10 | 
| D. | 1/10000 | 
| Answer» E. | |
| 6. | Bore gauge is used for measuring the _______. | 
| A. | depth of a hole | 
| B. | diameter with an accuracy of 0.05 mm | 
| C. | outside diameter of a shaft | 
| D. | inside diameter of a hole | 
| Answer» E. | |
| 7. | For which surfaces, is a spirit level used for testing straightness ? | 
| A. | Horizontal surfaces | 
| B. | Both Horizontal and vertical surfaces | 
| C. | Inclined surfaces | 
| D. | Vertical surfaces | 
| Answer» B. Both Horizontal and vertical surfaces | |
| 8. | A Metric Outside micrometer of range 100-125 mm is used to measure the diameter of a rod. Barrel graduation showed 16.5 and the thimble graduation in line with the barrel datum line was 28. What is the diameter of the rod? | 
| A. | 16.78 mm | 
| B. | 16.64 mm | 
| C. | 1664 mm | 
| D. | 116.78 mm | 
| Answer» E. | |
| 9. | ‘GO’ and ‘NO GO’ gauge is a type of | 
| A. | Limit gauge | 
| B. | Ring gauge | 
| C. | Slip gauge | 
| D. | Plug gauge | 
| Answer» B. Ring gauge | |
| 10. | A fit designated as 30H7/g6 is a | 
| A. | Clearance fit | 
| B. | Transition fit | 
| C. | Interference fit | 
| D. | Tolerance fit | 
| Answer» B. Transition fit | |
| 11. | In a hole basis system, the lower deviation for the hole ‘H’ is | 
| A. | 0 mm | 
| B. | 0.1 mm | 
| C. | 1 mm | 
| D. | 0.01 mm | 
| Answer» B. 0.1 mm | |
| 12. | A feeler gauge is used for | 
| A. | Checking accuracy of holes | 
| B. | Checking gap between the mating parts | 
| C. | Checking radii of jobs | 
| D. | Adjusting the parts for play | 
| Answer» C. Checking radii of jobs | |
| 13. | For a hole designated as 28 ± 0.5 mm, the tolerance is | 
| A. | 0.5 mm | 
| B. | 1 mm | 
| C. | 28 mm | 
| D. | 28.5 mm | 
| Answer» C. 28 mm | |
| 14. | _______ is an example of transition fit. | 
| A. | Running fit | 
| B. | Expansion fit | 
| C. | Wringing fit | 
| D. | Shrinkage fit | 
| Answer» D. Shrinkage fit | |
| 15. | In the hole basis system, the hole is kept constant & the size of the _____ is varied to get the desired fit. | 
| A. | Tolerance | 
| B. | Shaft | 
| C. | Hole | 
| D. | Fit | 
| Answer» C. Hole | |
| 16. | Hardness of slip gauges should be, | 
| A. | 55 HRC | 
| B. | 58 HRC | 
| C. | 64 HRC | 
| D. | 50 HRC | 
| Answer» D. 50 HRC | |
| 17. | If the hole size is 25+0.000/+0.021 & the shaft size is 25+0.022/+0.035 the minimum interference is | 
| A. | 0.035 mm | 
| B. | 0.001 mm | 
| C. | 0.021 mm | 
| D. | 0.022 mm | 
| Answer» C. 0.021 mm | |
| 18. | In mass production, parts made to definite limit of error is called as ______ | 
| A. | Selective assembly | 
| B. | Tolerance | 
| C. | Allowance | 
| D. | Interchangeability | 
| Answer» E. | |
| 19. | In an assembly, Hole size is smaller than shaft size then this type of fit is known as ______ | 
| A. | Clearance fit | 
| B. | Interference fit | 
| C. | Transition fit | 
| D. | Sliding fit | 
| Answer» C. Transition fit | |
| 20. | WHICH_OF_THE_FOLLOWING_IS_MOUNTED_ON_A_ROBOT_ARM_FOR_INSPECTING_COMPLICATED_SURFACES??$ | 
| A. | Vision sensor | 
| B. | Proximity sensor | 
| C. | Heat sensor | 
| D. | Touch sensor | 
| Answer» B. Proximity sensor | |
| 21. | Which_of_the_following_is_used_to_detect_the_modulated_reflected_light_from_any_irregularity_on_the_surface?$ | 
| A. | Television camera | 
| B. | Light intensity sensor | 
| C. | Modulator | 
| D. | Video processor | 
| Answer» E. | |
| 22. | What is another name of computer aided inspection? | 
| A. | Computer aided machining | 
| B. | Visionary machining | 
| C. | Machine vision | 
| D. | Visionary inspection | 
| Answer» D. Visionary inspection | |
| 23. | How many points are needed on the circumference to define a circle by computer? | 
| A. | One | 
| B. | Two | 
| C. | Three | 
| D. | Four | 
| Answer» D. Four | |
| 24. | Which of the following is used for automatic inspection? | 
| A. | Universal probes | 
| B. | Hydrolysis probes | 
| C. | Electronic probes | 
| D. | Mechanical probes | 
| Answer» B. Hydrolysis probes | |
| 25. | What is the use of stroboscope technology? | 
| A. | Optically freezing the motion of rotating part | 
| B. | Mechanically freezing the motion of reciprocating part | 
| C. | Optically freezing the motion of reciprocating and rotating part | 
| D. | Mechanically freezing the motion of reciprocating and rotating part | 
| Answer» D. Mechanically freezing the motion of reciprocating and rotating part | |
| 26. | How many levels are organized in an inspection data handling? | 
| A. | 1 | 
| B. | 2 | 
| C. | 3 | 
| D. | 4 | 
| Answer» C. 3 | |
| 27. | Which of the following is used to control the robot arm? | 
| A. | Microprocessor | 
| B. | Keyboard | 
| C. | Mouse | 
| D. | Computer | 
| Answer» B. Keyboard | |
| 28. | How many degrees of freedom is in the robotic arm? | 
| A. | 1 | 
| B. | 2 | 
| C. | 3 | 
| D. | 4 | 
| Answer» E. | |
| 29. | How a system is used to check the surface finish of a surface by CAI? | 
| A. | As a mirror | 
| B. | As a lens | 
| C. | As a black body | 
| D. | As a grey body | 
| Answer» B. As a lens | |