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. |
Aqueous nitric acid is stored in________________? |
| A. | Steel drum |
| B. | Stainless steel vessel |
| C. | Cast iron vessel lined with acid-proof masonry brick |
| D. | Cast iron vessel |
| Answer» C. Cast iron vessel lined with acid-proof masonry brick | |
| 2. |
Approximate value of the modulus of elasticity for steel is about _____________ × 106kg/cm2? |
| A. | 0.5 |
| B. | 2 |
| C. | 40 |
| D. | 75 |
| Answer» C. 40 | |
| 3. |
Anodic material used for the cathodic protection of underground buried steel pipeline is_________________? |
| A. | Nickel or copper |
| B. | Zinc or magnesium |
| C. | Bronze |
| D. | Brass |
| Answer» C. Bronze | |
| 4. |
An ideal material of construction for the storage of 50% caustic soda solution would be___________________? |
| A. | Karbate |
| B. | High silicon cast iron |
| C. | Monel |
| D. | None of these |
| Answer» D. None of these | |
| 5. |
An elastic behaviour of materials is expressed in terms of_______________? |
| A. | Hysteresis loop area |
| B. | Stress-strain curve |
| C. | Relaxation time |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called____________________? |
| A. | Constantan |
| B. | Kanthal |
| C. | Chromel |
| D. | German silver |
| Answer» B. Kanthal | |
| 7. |
An alloy of iron containing 4% carbon is called________________? |
| A. | High carbon steel |
| B. | Wrought iron |
| C. | Mild steel |
| D. | None of these |
| Answer» E. | |
| 8. |
Amount of energy that a material can absorb before its fracture is a measure of its _________________? |
| A. | Toughness |
| B. | Resilience |
| C. | Malleability |
| D. | Ductility |
| Answer» B. Resilience | |
| 9. |
Among the tin containing alloys, ______________ consumes the maximum amount of tin? |
| A. | Solder |
| B. | White metal |
| C. | Pewter metal |
| D. | Bronzes |
| Answer» B. White metal | |
| 10. |
Ammonium chloride solution is stored/ treated in _____________ vessels/pipes? |
| A. | Plain carbon steel |
| B. | Stainless steel |
| C. | Rubber or durmet-20 lined |
| D. | Lead |
| Answer» D. Lead | |
| 11. |
Aluminium storage vessel can be used to store________________? |
| A. | Aqua regia |
| B. | Ferrous sulphate |
| C. | Hydrochloric acid (10%) |
| D. | None of these |
| Answer» E. | |
| 12. |
Aluminium as a material of construction suffers from the disadvantage of__________________? |
| A. | Very high cost |
| B. | Rather low tensile strength |
| C. | Very low strength to weight ratio |
| D. | Scarce availability |
| Answer» C. Very low strength to weight ratio | |
| 13. |
Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its___________________? |
| A. | High strength to weight ratio |
| B. | Low temperature strength properties |
| C. | Its ability to be cast, rolled, forged & stamped |
| D. | High strength and corrosion & oxidation-resistance at elevated temperature |
| Answer» B. Low temperature strength properties | |
| 14. |
Alpha iron is stable ______________ °C? |
| A. | Above 1403 |
| B. | Upto 910 |
| C. | Above 1800 |
| D. | Between 910 & 1403 |
| Answer» C. Above 1800 | |
| 15. |
____________ alloys have the highest specific strength of all the structural materials out of the following? |
| A. | Magnetic steel |
| B. | Titanium |
| C. | Chromium |
| D. | Magnesium |
| Answer» C. Chromium | |
| 16. |
All materials obey Hooke’s law within elastic limit. When elastic limit is reached, the tensile strain__________________? |
| A. | Increases very quickly |
| B. | Decreases very quickly |
| C. | Increases in proportion to stress |
| D. | Decreases in proportion to stress |
| Answer» B. Decreases very quickly | |
| 17. |
Alinco, which is a aluminium-cobalt-nickel steel, is used for making __________________? |
| A. | Surgical instruments |
| B. | Powerful magnets |
| C. | Chemical equipments |
| D. | Boiler tubes |
| Answer» C. Chemical equipments | |
| 18. |
‘Age hardening’ of duralumin is due to____________________? |
| A. | Copper |
| B. | Magnesium |
| C. | Both A. & B. |
| D. | Neither A. nor B. |
| Answer» D. Neither A. nor B. | |
| 19. |
Age hardening is concerned with_________________? |
| A. | Copper |
| B. | Brass |
| C. | Duralumin |
| D. | Silver |
| Answer» D. Silver | |
| 20. |
Addition of tungsten to steel imparts___________________? |
| A. | Magnetic properties |
| B. | Cutting hardness |
| C. | Corrosion resistance |
| D. | Ductility |
| Answer» C. Corrosion resistance | |
| 21. |
Addition of ______________ to the steel helps in increasing the residual magnetism in steel used for making magnets? |
| A. | Chromium |
| B. | Nickel |
| C. | Tungsten |
| D. | Cobalt |
| Answer» E. | |
| 22. |
Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its__________________? |
| A. | Corrosion resistance |
| B. | Tensile strength |
| C. | Machinability |
| D. | Compressive strength |
| Answer» D. Compressive strength | |
| 23. |
Addition of nickel to copper improves its_________________? |
| A. | Machinability |
| B. | Ductility |
| C. | Strength |
| D. | Hardness |
| Answer» E. | |
| 24. |
Addition of _____________ in steel can help in increasing the depth of hardness? |
| A. | Nickel |
| B. | Chromium |
| C. | Vanadium |
| D. | Tungsten |
| Answer» E. | |
| 25. |
Addition of ______________ in steel is helpful in increasing the depth of hardness? |
| A. | Chromium |
| B. | Sulphur |
| C. | Vanadium |
| D. | Tungsten |
| Answer» B. Sulphur | |
| 26. |
Addition of 2% nickel in steel makes it suitable for making ___________________? |
| A. | Electronic valves |
| B. | Boiler plates, rivets etc. |
| C. | Turbine blades |
| D. | Connecting rod |
| Answer» C. Turbine blades | |
| 27. |
Acid proof stoneware_________________? |
| A. | Has very low strength |
| B. | Cannot be heated |
| C. | Is broken by small temperature changes |
| D. | All A., B. and C. |
| Answer» E. | |
| 28. |
Acetylene gas holder is made of__________________? |
| A. | Copper |
| B. | Cast iron |
| C. | Steel |
| D. | Monel metal |
| Answer» D. Monel metal | |
| 29. |
Acetaldehyde is shipped in ____________ drums? |
| A. | Cast iron |
| B. | Steel |
| C. | Aluminium |
| D. | Either B. & C. |
| Answer» E. | |
| 30. |
Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of___________________? |
| A. | Rubber lined mild steel |
| B. | Lead lined mild steel |
| C. | Aluminium |
| D. | Cast iron |
| Answer» B. Lead lined mild steel | |
| 31. |
Ability of a material to absorb energy in deformation in the plastic range is characterised as its____________________? |
| A. | Ductility |
| B. | Toughness |
| C. | Creep |
| D. | Resilience |
| Answer» C. Creep | |
| 32. |
Ability of a material to ______________ is indicated by its damping capacity? |
| A. | Withstand compression |
| B. | Absorb vibration |
| C. | Absorb shock |
| D. | None of these |
| Answer» C. Absorb shock | |
| 33. |
A suitable material of construction to use with fuming sulphuric acid is_________________? |
| A. | Carbon steel |
| B. | Stainless steel type 304 |
| C. | Nickel |
| D. | Monel |
| Answer» E. | |
| 34. |
A steel alloy containing 36% nickel is called _____________________, which has a zero co-efficient of expansion? |
| A. | Austenitic stainless steel |
| B. | Heat resisting steel |
| C. | Invar |
| D. | High speed steel |
| Answer» D. High speed steel | |
| 35. |
A metallic alloy in which one of the constituent metal is _____________, is called an amalgam? |
| A. | Zinc |
| B. | Mercury |
| C. | Lead |
| D. | Tin |
| Answer» C. Lead | |
| 36. |
A measure of toughness of a material is its________________? |
| A. | Percentage elongation |
| B. | Yield strength |
| C. | Ultimate strength |
| D. | Area under stress-strain diagram |
| Answer» C. Ultimate strength | |
| 37. |
A material no longer behaves elastically beyond_________________? |
| A. | Plastic limit |
| B. | Limiting load |
| C. | Elastic limit |
| D. | Breaking load |
| Answer» D. Breaking load | |
| 38. |
A material is called ‘ductile’, if it can be__________________? |
| A. | Drawn into wires |
| B. | Hammered to a thin sheet |
| C. | Fractured without deformation |
| D. | Made lustrous by heating it |
| Answer» B. Hammered to a thin sheet | |
| 39. |
A material is able to retain the deformation permanently by virtue of its___________________? |
| A. | Elasticity |
| B. | Plasticity |
| C. | Ductility |
| D. | Malleability |
| Answer» C. Ductility | |
| 40. |
A material capable of undergoing large permanent deformation, when subjected to tension is termed as___________________? |
| A. | Friable |
| B. | Ductile |
| C. | Brittle |
| D. | None of these |
| Answer» C. Brittle | |
| 41. |
A material capable of undergoing large permanent deformation, when subjected to compression is termed as___________________? |
| A. | Malleable |
| B. | Ductile |
| C. | Brittle |
| D. | None of these |
| Answer» B. Ductile | |
| 42. |
A magnetic material becomes ____________ above the Curie temperature? |
| A. | Ferromagnetic |
| B. | Diamagnetic |
| C. | Paramagnetic |
| D. | None of these |
| Answer» D. None of these | |
| 43. |
A hardness depth of about 3 mm can be achieved by induction hardness in ______________ seconds? |
| A. | 5 |
| B. | 100 |
| C. | 250 |
| D. | 500 |
| Answer» B. 100 | |
| 44. |
A hardened steel essentially contains___________________? |
| A. | Sorbite |
| B. | Troostite |
| C. | Martensite |
| D. | None of these |
| Answer» D. None of these | |
| 45. |
A chemical change takes place when iron_____________? |
| A. | Rusts |
| B. | Melts |
| C. | Is heated |
| D. | None of these |
| Answer» B. Melts | |
| 46. |
A bearing metal should not have___________________? |
| A. | Enough plasticity |
| B. | Low thermal conductivity |
| C. | Low co-efficient of friction |
| D. | High toughness |
| Answer» C. Low co-efficient of friction | |
| 47. |
18/8 steel is a/an __________ stainless steel ? |
| A. | Austenitic |
| B. | Ferritic |
| C. | Martensitic |
| D. | None of these |
| Answer» B. Ferritic | |
| 48. |
18/8 stainless steel means, that it contains__________________? |
| A. | 18% chromium and 8% nickel |
| B. | 18% chromium and 8% molybdenum |
| C. | 18% nickel and 8% chromium |
| D. | 18% molybdenum and 8% chromium |
| Answer» B. 18% chromium and 8% molybdenum | |
| 49. |
18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________? |
| A. | Tungsten, vanadium and chromium |
| B. | Tungsten, chromium and vanadium |
| C. | Vanadium, chromium and tungsten |
| D. | Chromium, tungsten and vanadium |
| Answer» C. Vanadium, chromium and tungsten | |
| 50. |
100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________? |
| A. | Cast iron and high silicon iron |
| B. | Mild steel and stainless steel |
| C. | Aluminium, tin and rubber |
| D. | Teflon, glass and porcelain |
| Answer» D. Teflon, glass and porcelain | |