MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The process of producing parts by electrolytic deposition of metal upon a conductive removable mould or matrix is known as |
| A. | Plating |
| B. | Deposition |
| C. | Electro-moulding |
| D. | Electrolysis |
| E. | Electro forming |
| Answer» F. | |
| 2. |
Which of the following timber is used for sports goods? |
| A. | Mulberry |
| B. | Mahogany |
| C. | Sal |
| D. | Deodar |
| E. | None of the above |
| Answer» B. Mahogany | |
| 3. |
Corrosion is a destructive attack on metals |
| A. | Which may be chemical or electrochemical in nature |
| B. | Which is basically caused by atmospheric air |
| C. | Which is caused by contact with other metals |
| D. | At high temperature |
| E. | None of the above |
| Answer» B. Which is basically caused by atmospheric air | |
| 4. |
Spring steels should have high resistance to |
| A. | Shocks |
| B. | Fatigue |
| C. | Corrosion |
| D. | Deformation |
| E. | All of the above |
| Answer» E. All of the above | |
| 5. |
Cold work is done on the metal |
| A. | Below the thermal critical range |
| B. | Above the thermal critical range |
| C. | At zero degree centigrade temperature |
| D. | After slightly warning the metal in furnace |
| E. | None of the above |
| Answer» B. Above the thermal critical range | |
| 6. |
For heavy loads in aircraft bearings the material used with lead to reduce the risk of scizure is |
| A. | Silver |
| B. | Copper |
| C. | Iron |
| D. | Tin |
| E. | Zinc |
| Answer» B. Copper | |
| 7. |
The amount of energy expended by the action of external force in deforming an elastic body is known as |
| A. | Elastic energy |
| B. | Deformation energy |
| C. | Strain energy |
| D. | Work done |
| E. | Potential energy |
| Answer» D. Work done | |
| 8. |
In general, high cohesive forces are related to |
| A. | Large values of elastic constants |
| B. | Low melting point |
| C. | Large coefficients of thermal expansion |
| D. | Small value of elastic constants |
| E. | None of the above |
| Answer» B. Low melting point | |
| 9. |
Which of the following materials demonstrate viscoelastic behaviour? |
| A. | Rubber |
| B. | Glass |
| C. | Plastics |
| D. | Non-crystalline organic polymers |
| E. | All of the above |
| Answer» E. All of the above | |
| 10. |
All of the following are point defects EXCEPT |
| A. | vacancies |
| B. | dislocations |
| C. | interstitials |
| D. | isolated impurities |
| E. | None of the above |
| Answer» C. interstitials | |
| 11. |
The theory of failure which gives fairly good results for the ductile materials is |
| A. | Hooke's law |
| B. | Maximum shear stress theory |
| C. | Maximum strain energy theory |
| D. | Maximum principal stress theory |
| E. | Maximum shear strain energy theory |
| Answer» F. | |
| 12. |
Thermoplastic and thermoset polymers differ in |
| A. | Glass transition temperature |
| B. | Thermal behaviour |
| C. | Mechanical behaviour |
| D. | All of the above |
| E. | Semi-conductors |
| Answer» C. Mechanical behaviour | |
| 13. |
The limiting load beyond which the material no longer behaves elastically is known is |
| A. | Breaking load |
| B. | Load bearing capacity |
| C. | Limiting load |
| D. | Plastic limit |
| E. | Elastic limit |
| Answer» F. | |
| 14. |
Which one is different from the others in press work |
| A. | Tube forming |
| B. | Embossing |
| C. | Bulging |
| D. | Cupping |
| E. | Notching |
| Answer» F. | |
| 15. |
A body which is permanently deformed is said to have undergone |
| A. | Elastic deformation |
| B. | Limit of elastic deformation |
| C. | Uniform deformation |
| D. | Non-uniform deformation |
| E. | None of the above |
| Answer» D. Non-uniform deformation | |
| 16. |
The raw material for mini steel plants is |
| A. | Iron ore |
| B. | Pig iron |
| C. | Grey iron |
| D. | CI and steel scrap |
| E. | None of the above |
| Answer» E. None of the above | |
| 17. |
Hardness may be defined as resistance to |
| A. | Local penetration |
| B. | Machining |
| C. | Wear |
| D. | Scratching |
| E. | Any of the above |
| Answer» F. | |
| 18. |
The fine grained steel |
| A. | Are brittle |
| B. | Are lighter |
| C. | Are doctile |
| D. | Have more tendency to distort |
| E. | None of the above |
| Answer» D. Have more tendency to distort | |
| 19. |
A ductile fracture is usually not preceded by |
| A. | plastic flow |
| B. | deformation |
| C. | noise |
| D. | large amounts of non-recoverable energy absorption |
| E. | None of the above |
| Answer» D. large amounts of non-recoverable energy absorption | |
| 20. |
In Charpy impact test, the specimen is held as a |
| A. | cantilever |
| B. | simply supported beam |
| C. | fixed beam |
| D. | hinged beam |
| E. | None of the above |
| Answer» C. fixed beam | |
| 21. |
When elastic limit is reached |
| A. | Tensile strain decreases in proportion to stress |
| B. | Tensile strain increases in proportion to stress |
| C. | Tensile strain increases more quickly |
| D. | Tensile strain decreases more quickly |
| E. | None of the above |
| Answer» B. Tensile strain increases in proportion to stress | |
| 22. |
The greatest amount of strain energy per unit volume that a material can absorb sithout exceeding its elastic limit is |
| A. | Endurance limit |
| B. | Proof resilience |
| C. | Resilience |
| D. | Toughness |
| E. | Elastic limit |
| Answer» E. Elastic limit | |
| 23. |
Materials which lack permanent magnetic dipoles are called |
| A. | diamagnetic |
| B. | ferromagnetic |
| C. | semi-magnetic |
| D. | None of the above |
| E. | None of the above |
| Answer» B. ferromagnetic | |
| 24. |
In Brinell hardness testing the time of loading is |
| A. | 5 minutes |
| B. | 1 minute |
| C. | 15 seconds |
| D. | 30 seconds |
| E. | 10 minutes |
| Answer» D. 30 seconds | |
| 25. |
Coal used in a cupola is |
| A. | Charcoal |
| B. | Coking coal |
| C. | Pulverized coal |
| D. | Graphite |
| E. | Coke |
| Answer» F. | |
| 26. |
The fatigue limit of a shaft connot be increased by |
| A. | Cold working |
| B. | Nitriding of the surface |
| C. | Shot peening |
| D. | Surface decarburisation |
| E. | Under stressing |
| Answer» E. Under stressing | |
| 27. |
Which is amorphous material out of the following? |
| A. | Brass |
| B. | Zinc |
| C. | Lead |
| D. | Silver |
| E. | Glass |
| Answer» F. | |
| 28. |
The purpose of annealing is to |
| A. | Produce irregular microstructure |
| B. | Harden the surface |
| C. | Induce hardness |
| D. | Remove stresses |
| E. | Induce stresses |
| Answer» E. Induce stresses | |
| 29. |
In high speed steel the maximum percentage of any alloying element is |
| A. | Chromium |
| B. | Carbon |
| C. | Tungsten |
| D. | Molybdenum |
| E. | Vanadium |
| Answer» D. Molybdenum | |
| 30. |
A composite bar of steel and copper is heated. The copper bar will be under |
| A. | compression |
| B. | tension |
| C. | torsion |
| D. | shear |
| E. | None of the above |
| Answer» B. tension | |
| 31. |
Which of the following increases when copper is hard drawn into wires? |
| A. | Diameter |
| B. | Cross-sectional area |
| C. | Resistivity |
| D. | Specific gravity |
| E. | None of the above |
| Answer» D. Specific gravity | |
| 32. |
Monel metal is |
| A. | Aluminium Copper alloy |
| B. | Nickel-Chromium alloy |
| C. | Aluminium Silver alloy |
| D. | Copper Nickel alloy |
| E. | Chromium - Molybdenum alloy |
| Answer» F. | |
| 33. |
The structure of common glass is |
| A. | Amorphous |
| B. | Partially crystalline |
| C. | Fully crystalline |
| D. | None of the above |
| E. | Semi-conductors |
| Answer» B. Partially crystalline | |
| 34. |
Hot hardness of high speed steels increases due to the addition of |
| A. | Tungsten |
| B. | Phosphorous |
| C. | Chromium |
| D. | Vanadium |
| E. | None of the above |
| Answer» B. Phosphorous | |
| 35. |
Number of isotopes for iron is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| E. | Nil |
| Answer» D. 1 | |
| 36. |
The behaviour of visco-elastic materials is |
| A. | time dependent |
| B. | temperature dependent |
| C. | orientation dependent |
| D. | age-dependent |
| E. | None of the above |
| Answer» B. temperature dependent | |
| 37. |
The property of material by which it can be rolled into sheets is called |
| A. | Elasticity |
| B. | Creep |
| C. | Ductility |
| D. | Malleability |
| E. | Plasticity |
| Answer» E. Plasticity | |
| 38. |
If steel is quenched in water, the structure obtained is |
| A. | Martensite |
| B. | Acicular |
| C. | Troosite |
| D. | Sorbite |
| E. | Pearlite |
| Answer» B. Acicular | |
| 39. |
The number of elastic constants for a completely anisotropie elastic material which follows Hooke's law is |
| A. | 2 |
| B. | 21 |
| C. | 25 |
| D. | 3 |
| E. | 4 |
| Answer» C. 25 | |
| 40. |
X-rays cannot penetrate through |
| A. | Wood |
| B. | Brass |
| C. | Paper |
| D. | Lead |
| E. | Copper |
| Answer» E. Copper | |
| 41. |
Copper sheets are manufactured by |
| A. | Sintering |
| B. | Deep drawing |
| C. | Drawing |
| D. | Extruding |
| E. | Rolling |
| Answer» F. | |
| 42. |
Cemented carbide tools are generally not used for the machining of |
| A. | Cast iron |
| B. | Aluminium |
| C. | Bronze |
| D. | Brass |
| E. | Steel |
| Answer» E. Steel | |
| 43. |
Which of the following materials have maximum magnetic permeability? |
| A. | 4% silicon steel |
| B. | 13.40% |
| C. | Iron carbide |
| D. | Pure iron |
| E. | Gram oriented Si-Fe |
| Answer» F. | |
| 44. |
Brinell and Vickers hardness values are practically identical upto a hardness of |
| A. | 300 |
| B. | 30 |
| C. | 100 |
| D. | 10 |
| E. | 600 |
| Answer» B. 30 | |
| 45. |
When the atomic magnetic moments are randomly oriented in a solid, its magnetic behaviour is termed as |
| A. | polycrystalline |
| B. | anti-ferromagnetic |
| C. | paramagnetic |
| D. | semi-magnetic |
| E. | None of the above |
| Answer» D. semi-magnetic | |
| 46. |
In cold working of metals |
| A. | Poor surface finish is obtained |
| B. | Strength and hardness of steel is increased |
| C. | Close dimensional tolerance cannot be maintained |
| D. | Grain structure remains unchanged |
| E. | Recrystallization temperature for steel is reduced |
| Answer» C. Close dimensional tolerance cannot be maintained | |
| 47. |
Steel castings |
| A. | Cannot withstand impact |
| B. | Are not weldable |
| C. | Are weldable |
| D. | Have poor endurance properties |
| E. | Can withstand impact |
| Answer» D. Have poor endurance properties | |
| 48. |
In plain carbon steel as the percentage of carbon increases from 0.2% to 0.8% which of the following decreases? |
| A. | Brinell hardness number |
| B. | Tensile strength |
| C. | Percentage elongation |
| D. | All of the above |
| E. | None of the above |
| Answer» D. All of the above | |
| 49. |
The property of metal when the recovery after unloading is complete but not instantaneous is |
| A. | Plsticity |
| B. | Visco elasticity |
| C. | An elasticity |
| D. | Inelasticity |
| E. | Elasticity |
| Answer» D. Inelasticity | |
| 50. |
A Babitt is |
| A. | A cutectic of iron and iron phosphide |
| B. | A gadget for measuring volume |
| C. | A measure of magnetic induction produced in a material |
| D. | None of these |
| E. | Antimony bearing lead or tin alloy |
| Answer» B. A gadget for measuring volume | |