MCQOPTIONS
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MCQOPTIONS
This section includes 30 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The flat ends of a boiler are prevented from bulging out and are strengthened by means of _________ |
| A. | connection of plates at right angles |
| B. | gusset stays |
| C. | welding |
| D. | riveting |
| Answer» C. welding | |
| 2. |
In butt joint when two straps are used the thickness varies between _______ to ________ (T is the thickness of plate to be connected). |
| A. | T, 1.125T |
| B. | 0.7T, 0.8T |
| C. | 0.5T, T |
| D. | .a) T, 1.125Tb) 0.7T, 0.8Tc) 0.5T, Td) T, 1.5T |
| Answer» C. 0.5T, T | |
| 3. |
In butt joint when one strap is used the thickness varies between _______ to ________ (T is the thickness of plate to be connected). |
| A. | T, 1.125T |
| B. | 0.7T, 0.8T |
| C. | 0.5T, T |
| D. | .a) T, 1.125Tb) 0.7T, 0.8Tc) 0.5T, Td) T, 1.5T |
| Answer» B. 0.7T, 0.8T | |
| 4. |
In zigzag lap joint formation when P is the pitch between the rivets, the distance between the rows of rivets should not be less than _____ |
| A. | 0.6P |
| B. | 0.8P |
| C. | P |
| D. | 1.2P |
| Answer» B. 0.8P | |
| 5. |
Width (L) of overlap of sheets is equal to ________ when d is the diameter of a rivet in case of single-riveted lap joint. |
| A. | 2d |
| B. | 3d |
| C. | 4d |
| D. | 5d |
| Answer» C. 4d | |
| 6. |
What type of failure will occur when rivets are smaller than necessary? |
| A. | Tearing of plate between the holes |
| B. | Tearing of plate between the edges |
| C. | Shearing of rivet |
| D. | Crushing of plate |
| Answer» D. Crushing of plate | |
| 7. |
Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6) |
| A. | 31mm |
| B. | 35mm |
| C. | 36mm |
| D. | 40mm |
| Answer» B. 35mm | |
| 8. |
Which of the following isn’t a main part of rivet? |
| A. | Head |
| B. | Shank |
| C. | Point |
| D. | Thread |
| Answer» E. | |
| 9. |
IN_ZIGZAG_LAP_JOINT_FORMATION_WHEN_P_IS_THE_PITCH_BETWEEN_THE_RIVETS,_THE_DISTANCE_BETWEEN_THE_ROWS_OF_RIVETS_SHOULD_NOT_BE_LESS_THAN______?$ |
| A. | 0.6P |
| B. | 0.8P |
| C. | P |
| D. | 1.2P |
| Answer» B. 0.8P | |
| 10. |
RIVETING_IS_NOT_RECOMMENDED_FOR_ALUMINIUM_ALLOYS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
In butt joint when two straps are used the thickness varies between _______ to ________ (T is the thickness of plate to be connected).$ |
| A. | T, 1.125T |
| B. | 0.7T, 0.8T |
| C. | 0.5T, T |
| D. | T, 1.5T |
| Answer» C. 0.5T, T | |
| 12. |
Quality checking of riveted joint is much expensive than that of welded joint.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
In_butt_joint_when_one_strap_is_used_the_thickness_varies_between_________to__________(T_is_the_thickness_of_plate_to_be_connected).$ |
| A. | T, 1.125T |
| B. | 0.7T, 0.8T |
| C. | 0.5T, T |
| D. | T, 1.5T |
| Answer» B. 0.7T, 0.8T | |
| 14. |
In_joining_steel_plate_and_asbestos,_welding_is_preferred_over_riveting.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
The_flat_ends_of_a_boiler_are_prevented_from_bulging_out_and_are_strengthened_by_means_of__________ |
| A. | connection of plates at right angles |
| B. | gusset stays |
| C. | welding |
| D. | riveting |
| Answer» C. welding | |
| 16. |
Width (L) of overlap of sheets is equal to ________ when d is the diameter of a rivet in case of single-riveted lap joint? |
| A. | 2d |
| B. | 3d |
| C. | 4d |
| D. | 5d |
| Answer» C. 4d | |
| 17. |
Among punching and drilling, punching is safer? |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
A joint is said to be double-riveted, triple riveted etc. accordingly to the number of sheets used. |
| A. | True |
| B. | False |
| Answer» C. | |
| 19. |
Among punching and drilling, which is cheaper? |
| A. | Punching |
| B. | Drilling |
| C. | Equally expensive |
| D. | Cannot be determined |
| Answer» B. Drilling | |
| 20. |
In a lap joint, if the plates are connected to each other when the joint is made with only one row of rivets then it is called double-riveted lap joint. |
| A. | True |
| B. | False |
| Answer» C. | |
| 21. |
Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6)$ |
| A. | 31mm |
| B. | 35mm |
| C. | 36mm |
| D. | 40mm |
| Answer» B. 35mm | |
| 22. |
Tearing of the plate between the edges of the plate and rivet-hole takes place when ____________ |
| A. | they are near to each other |
| B. | the hole is too near the edge |
| C. | diameter of rivet is too small |
| D. | rivet and plate is of different metals |
| Answer» C. diameter of rivet is too small | |
| 23. |
The amount by which the two rods to be joined are drawn together is called as? |
| A. | Draw |
| B. | Portray |
| C. | Lead |
| D. | Pitch |
| Answer» B. Portray | |
| 24. |
Tearing of the plate between the holes is taken when ________________________ |
| A. | they are near to each other |
| B. | the hole is too near the edge |
| C. | diameter of rivet is too small |
| D. | rivet and plate is of different metals |
| Answer» B. the hole is too near the edge | |
| 25. |
In hot riveting the shank portion is subjected to compressive stress. |
| A. | True |
| B. | False |
| Answer» C. | |
| 26. |
The thickness of the fullering tool is about the ___________ as that of the plates. |
| A. | double |
| B. | same |
| C. | half |
| D. | one third |
| Answer» C. half | |
| 27. |
In hand riveting die is a part of hammer. |
| A. | True |
| B. | False |
| Answer» C. | |
| 28. |
The necessary diameter (d) for thickness of plates (t) is ______ |
| A. | d = 6*‚àöt |
| B. | d =4*‚àöt |
| C. | d =6*‚àö2t |
| D. | d =4*‚àö2t |
| Answer» B. d =4*‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇt | |
| 29. |
A rivet is specified as a 20mm rivet. What does it mean? |
| A. | None of the mentioned |
| B. | Shank dia 20mm |
| C. | Head dia 20mm |
| D. | Both head and shank dia 20mm |
| Answer» C. Head dia 20mm | |
| 30. |
Which of the following isn’t a main part of rivet? |
| A. | Head |
| B. | Shank |
| C. | Point |
| D. | Thread |
| Answer» E. | |