SSC JE Exam - building materials physical chemical properties classification Online Test (MCQ Quiz)

1. Which property of a building material relates to its ability to resist deformation under load?

A) Density B) Hardness C) Stiffness D) Brittleness

2. The ability of a material to absorb energy and plastically deform without fracturing is known as:

A) Elasticity B) Toughness C) Creep D) Fatigue

3. What term describes the gradual deformation of a material under constant stress over a long period, typically at elevated temperatures?

A) Elasticity B) Plasticity C) Creep D) Fatigue

4. Which chemical property of cement is primarily responsible for its hardening and strength development?

A) Alkali content B) Sulphate content C) Hydration D) Free lime content

5. The classification of building materials into natural and artificial categories is based on:

A) Their chemical composition B) Their origin and processing C) Their physical state D) Their mechanical properties

6. Which of the following is a 'natural' building material?

A) Brick B) Concrete C) Timber D) Steel

7. An 'artificial' building material is one that is:

A) Found directly in nature B) Processed or manufactured from natural raw materials C) Organic in origin D) Not subjected to any chemical change

8. The density of a building material is defined as its:

A) Mass per unit volume B) Weight per unit volume C) Strength per unit area D) Porosity per unit mass

9. A material that returns to its original shape after the removal of applied load exhibits:

A) Plasticity B) Elasticity C) Brittleness D) Ductility

10. Which physical property is crucial for determining the thermal insulation capabilities of a building material?

A) Hardness B) Porosity C) Thermal conductivity D) Abrasion resistance

11. The ability of a material to withstand scratching, cutting, or wearing away is known as:

A) Toughness B) Hardness C) Brittleness D) Ductility

12. Which chemical property of a material refers to its tendency to undergo a chemical reaction with its environment, such as oxidation or corrosion?

A) Reactivity B) Combustibility C) Stability D) Acidity

13. The classification of aggregates based on their origin includes:

A) Fine and Coarse aggregates B) Lightweight and Normal weight aggregates C) Natural and Artificial aggregates D) Graded and Ungraded aggregates

14. What is the primary chemical reaction that occurs when Portland cement is mixed with water?

A) Oxidation B) Hydration C) Carbonation D) Polymerization

15. The property of a material to deform permanently under stress without fracturing is called:

A) Elasticity B) Stiffness C) Plasticity D) Hardness

16. Which physical property is important for a material used in roofing to resist weathering and degradation from sunlight?

A) Compressive strength B) UV resistance C) Impact resistance D) Electrical conductivity

17. The tendency of a material to break or shatter with little or no plastic deformation is known as:

A) Ductility B) Toughness C) Brittleness D) Malleability

18. Which chemical property determines if a material will burn when exposed to heat and oxygen?

A) Stability B) Reactivity C) Combustibility D) Acidity

19. Building materials can be broadly classified based on their function into categories like:

A) Natural, Artificial, and Composite B) Structural, Finishing, and Insulation C) Organic, Inorganic, and Metallic D) Dense, Porous, and Lightweight

20. What does the term 'Workability' refer to in the context of fresh concrete or mortar?

A) Its final strength after curing B) The ease with which it can be mixed, placed, and compacted C) Its resistance to chemical attack D) Its thermal expansion coefficient

21. The ability of a material to resist fracture when subjected to a sharp impact is termed:

A) Hardness B) Toughness C) Impact resistance D) Fatigue strength

22. Which physical property of a material is related to its ability to transmit heat?

A) Thermal expansion B) Thermal conductivity C) Specific heat D) Thermal resistance

23. The chemical property that describes a material's resistance to degradation or decomposition when exposed to light, especially ultraviolet radiation, is:

A) Photostability B) Oxidation resistance C) Hydrolysis resistance D) Corrosion resistance

24. Materials that are manufactured by combining two or more distinct materials to achieve improved properties are classified as:

A) Natural materials B) Artificial materials C) Composite materials D) Organic materials

25. The rate at which a material absorbs or desorbs moisture from the atmosphere is related to its:

A) Density B) Porosity C) Hygroscopicity D) Permeability

26. What term describes the reduction in strength of a material due to repeated cycles of stress?

A) Creep B) Fatigue C) Stress relaxation D) Thermal shock

27. The chemical property of a material that indicates its ability to react with acids or bases is known as:

A) Alkalinity B) Acidity C) Chemical resistance D) Reactivity

28. Which classification of building materials includes items like bricks, cement, and glass?

A) Natural materials B) Artificial materials C) Composite materials D) Organic materials

29. The ability of a material to resist penetration by a sharp object is a measure of its:

A) Hardness B) Toughness C) Brittleness D) Ductility

30. What physical property is critical for a material used in electrical wiring?

A) High thermal conductivity B) Low electrical resistivity C) High compressive strength D) Low density

31. The process by which a material undergoes a permanent change in volume due to temperature changes is called:

A) Thermal expansion B) Thermal conductivity C) Thermal resistance D) Thermal shock

32. Which chemical property refers to a material's resistance to being corroded or degraded by chemical reactions with its environment?

A) Reactivity B) Stability C) Chemical resistance D) Combustibility

33. Aggregates are primarily classified into fine and coarse based on their:

A) Chemical composition B) Particle size C) Shape and texture D) Specific gravity

34. The process of hardening of cement in the presence of water is called:

A) Setting B) Curing C) Hydration D) Calcination

35. Which property of a material describes its ability to be drawn out into a thin wire?

A) Malleability B) Ductility C) Brittleness D) Elasticity

36. The ratio of the weight of a material to the weight of an equal volume of water at a specified temperature is known as:

A) Density B) Specific gravity C) Porosity D) Bulk density

37. Which physical property of a material is related to its ability to absorb and store heat energy?

A) Thermal conductivity B) Specific heat capacity C) Thermal expansion D) Thermal resistance

38. The tendency of a material to absorb moisture from the air is termed:

A) Permeability B) Porosity C) Hygroscopicity D) Capillarity

39. Which chemical property is important for materials used in fire-resistant construction?

A) Combustibility B) Incombustibility C) Reactivity D) Stability

40. The classification of materials into ferrous and non-ferrous is based on their:

A) Origin B) Chemical composition (presence of iron) C) Physical state D) Mechanical properties

41. What is meant by the 'soundness' of cement?

A) Its ability to resist fire B) Its ability to maintain its shape and volume without harmful expansion after setting C) Its rapid setting time D) Its high initial strength

42. The ability of a material to be hammered or rolled into thin sheets without fracturing is known as:

A) Ductility B) Malleability C) Brittleness D) Toughness

43. Which physical property is crucial for a material used as a sealant to prevent the passage of fluids or gases?

A) Permeability B) Porosity C) Compressive strength D) Tensile strength

44. The property of a material to resist weathering and environmental degradation over time is referred to as:

A) Strength B) Durability C) Hardness D) Stiffness

45. The chemical reaction of a material with oxygen, often leading to degradation, is called:

A) Reduction B) Oxidation C) Hydrolysis D) Carbonation

46. Materials like wood, stone, and metals are primarily classified as:

A) Artificial materials B) Composite materials C) Natural materials D) Synthetic materials

47. What is the term for the measure of a material's resistance to deformation under shear stress?

A) Young's Modulus B) Shear Modulus C) Bulk Modulus D) Poisson's Ratio

48. The presence of voids or pores within a material is referred to as its:

A) Density B) Hardness C) Porosity D) Brittleness

49. Which chemical property of a material indicates its tendency to break down when mixed with water?

A) Hydrolysis resistance B) Oxidation resistance C) Photostability D) Chemical resistance

50. The classification of building materials into organic and inorganic is based on their:

A) Origin B) Chemical structure (presence of carbon) C) Physical state D) Mechanical properties

building materials physical chemical properties classification - Online Test

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