McqMate
1. |
Which of the following has more fire resisting characteristics? |
A. | Marble |
B. | Lime stone |
C. | Compact sand stone |
D. | Granite |
Answer» C. Compact sand stone |
2. |
The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called |
A. | Plutonic rocks |
B. | Hypabyssal rocks |
C. | Volcanic rocks |
D. | Igneous rocks |
Answer» A. Plutonic rocks |
3. |
Plywood has the advantage of |
A. | Greater tensile strength in longer direction |
B. | Greater tensile strength in shorter direction |
C. | Same tensile strength in all directions |
D. | None of the above |
Answer» C. Same tensile strength in all directions |
4. |
Due to attack of dry rot, the timber |
A. | Cracks |
B. | Shrinks |
C. | Reduces to powder |
D. | None of these |
Answer» C. Reduces to powder |
5. |
Excess of alumina in brick earth makes the brick |
A. | Impermeable |
B. | Brittle and weak |
C. | To lose cohesion |
D. | To crack and warp on drying |
Answer» D. To crack and warp on drying |
6. |
Pick up the correct statement from the following: |
A. | In stone arches, the stones are placed with their natural beds radial |
B. | In cornices, the stones are placed with their natural beds as vertical |
C. | In stone walls, the stones are placed with their natural beds as horizontal |
D. | All the above |
Answer» D. All the above |
7. |
The constituent of cement which is responsible for all the undesirable properties of cement is |
A. | Di-calcium silicate |
B. | Tri-calcium silicate |
C. | Tri-calcium aluminate |
D. | Tetra calcium alumino ferrite |
Answer» C. Tri-calcium aluminate |
8. |
Inner part of a timber log surrounding the pitch, is called |
A. | Sapwood |
B. | Cambium layer |
C. | Heart wood |
D. | None to these |
Answer» C. Heart wood |
9. |
For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of |
A. | 1 : 2 |
B. | 1 : 3 |
C. | 1 : 4 |
D. | 1 : 6 |
Answer» B. 1 : 3 |
10. |
If is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is |
A. | 0.70 P |
B. | 0.75 P |
C. | 0.80 P |
D. | 0.85 P |
Answer» D. 0.85 P |
11. |
The basic purpose of a retarder in concrete is |
A. | To increase the initial setting time of cement paste in concrete |
B. | To decrease the initial setting time of cement paste in concrete |
C. | To render the concrete more water tight |
D. | To improve the workability of concrete mix |
Answer» A. To increase the initial setting time of cement paste in concrete |
12. |
Clay and silt content in a good brick earth must be at least |
A. | 50 % |
B. | 40 % |
C. | 30 % |
D. | 25 % |
Answer» A. 50 % |
13. |
Which of the following is the purest form of iron? |
A. | Cast iron |
B. | Wrought iron |
C. | Mild steel |
D. | High carbon steel |
Answer» B. Wrought iron |
14. |
If the iron ore contains clay as an impurity, the flux added during calcination, is |
A. | Clay |
B. | Lime stone |
C. | Argillaceous iron ore |
D. | All the above |
Answer» B. Lime stone |
15. |
The stretcher bond in brick masonry can be used only when the thickness of wall is |
A. | 90 mm |
B. | 180 mm |
C. | 190 mm |
D. | 280 mm |
Answer» A. 90 mm |
16. |
The plywood |
A. | Has good strength along the panel only |
B. | Can be spilt in the plane of the panel |
C. | Has greater impact resistance to blows than ordinary wood |
D. | Cannot be bent more easily than ordinary wood of same thickness |
Answer» C. Has greater impact resistance to blows than ordinary wood |
17. |
Pick up the correct statement from the following: |
A. | The phenol is carbolic acid |
B. | The phenol is either extracted from coal-tar or prepared from benzene |
C. | Phenol reacts with formaldehyde, to form phenol formaldehyde resin |
D. | All the above |
Answer» D. All the above |
18. |
Advantage of a clamp compared to a kiln for burning bricks is that |
A. | It takes less time for burning |
B. | It gives more output of first class bricks |
C. | It has less initial cost |
D. | It is suitable when bricks are required in large numbers |
Answer» C. It has less initial cost |
19. |
Pick up the correct statement from the following: |
A. | Solder material is an alloy which melts at a temperature above 400°C |
B. | Brazing is done at temperature above 600°C to 1100°C |
C. | Brazing joint is stronger than the solder joint |
D. | All the above |
Answer» D. All the above |
20. |
Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: |
A. | Both A and R is true and R is correct explanation of A |
B. | Both A and R is true and R is not a correct explanation of A |
C. | A is true but R is false |
D. | A is false but R is true |
Answer» A. Both A and R is true and R is correct explanation of A |
21. |
During pudding |
A. | Molten metal is kept clear of the fuel |
B. | Carbon is converted into carbonic acid gas |
C. | Silicon forms a slag |
D. | All the above |
Answer» D. All the above |
22. |
Early attainment of strength in rapid hardening cement is mainly due to |
A. | Gypsum |
B. | Finer grinding |
C. | Tri-calcium silicate |
D. | Tri-calcium aluminate |
Answer» B. Finer grinding |
23. |
Pick up the correct statement from the following: |
A. | Quick lime is obtained by burning pure lime stone |
B. | Hydraulic lime is obtained by burning lime stone containing clay 5% to 30% |
C. | Poor lime is obtained by burning lime stone containing impurities more than 5% |
D. | All the above |
Answer» D. All the above |
24. |
Which of the following cements contains maximum percentage of dicalcium silicate? |
A. | Ordinary Portland cement |
B. | Low heat cement |
C. | Rapid hardening cement |
D. | Sulphate resisting cement |
Answer» B. Low heat cement |
25. |
Pick up the incorrect statement from the following: |
A. | Hydraulic lime is generally obtained by burning kankar |
B. | Hydraulic lime sets slowly as compared to fat lime |
C. | Hydraulic lime is generally used in lime mortar |
D. | None of these |
Answer» D. None of these |
26. |
Which of the following stresses is used for identifying the quality of structural steel? |
A. | Ultimate stress |
B. | Yield stress |
C. | Proof stress |
D. | None of the above |
Answer» B. Yield stress |
27. |
Quick lime |
A. | Generates heat when added to water |
B. | Reacts with carbon dioxide |
C. | May be used for white-washing |
D. | All the above |
Answer» D. All the above |
28. |
Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below: |
A. | Both A and R is true and R is the correct explanation of A |
B. | Both A and R is true but R is not the correct explanation of A |
C. | A is true but R is false |
D. | A is false but R is true |
Answer» B. Both A and R is true but R is not the correct explanation of A |
29. |
Putty is |
A. | Made with finely powdered chalk and linseed oil |
B. | Used for fixing glass panes |
C. | Softened by a solution of pearl ash and quick-lime soaked in water |
D. | All the above |
Answer» D. All the above |
30. |
A mortar joint in masonry which is normal to the face of wall is known as |
A. | Bed joint |
B. | Wall joint |
C. | Cross joint |
D. | Bonded joint |
Answer» C. Cross joint |
31. |
A volatile substance added to a paint to make its application easy and smooth, is known as |
A. | Base |
B. | Solvent |
C. | Vehicle |
D. | None to these |
Answer» B. Solvent |
32. |
Jumper is a tool used for |
A. | Testing of stones |
B. | Quarrying of stones |
C. | Dressing of stones |
D. | None of the above |
Answer» B. Quarrying of stones |
33. |
Pick up the volcanic rock from the following: |
A. | Granite |
B. | Dolerite |
C. | Basalt |
D. | All the above |
Answer» C. Basalt |
34. |
Sapwood consists of |
A. | Innermost annular rings around the pith |
B. | Portion of timber between heartwood and cambium layer |
C. | Thin layers below the bark |
D. | Thin fibre which extends from the pith outwards and holds the annular rings together |
Answer» B. Portion of timber between heartwood and cambium layer |
35. |
Strength of cement concrete primarily depends upon |
A. | Quality of water |
B. | Quantity of aggregate |
C. | Quantity of cement |
D. | Water-cement ratio |
Answer» D. Water-cement ratio |
36. |
The main function of alumina in brick earth is |
A. | To impart plasticity |
B. | To make the brick durable |
C. | To prevent shrinkage |
D. | To make the brick impermeable |
Answer» A. To impart plasticity |
37. |
Cast iron |
A. | Is obtained by purifying pig iron |
B. | Is manufactured in required shapes |
C. | May contain 2 to 5 per cent of carbon with other impurities |
D. | All the above |
Answer» D. All the above |
38. |
Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? |
A. | Lime stone and alumina |
B. | Silica and alkalies |
C. | Alumina and iron |
D. | Alkalies and magnesium |
Answer» B. Silica and alkalies |
39. |
Pick up the correct statement from the following: |
A. | The distinct plane of division along which a stone can easily be split, is called natural bed of stone |
B. | The natural bed of sedimentary rocks is along the planes of stratification |
C. | The natural bed of igneous rocks is not defined |
D. | All the above |
Answer» D. All the above |
40. |
Hydraulic lime is obtained by |
A. | Burning of lime stone |
B. | Burning of kankar |
C. | Adding water to quick lime |
D. | Calcination of pure clay |
Answer» B. Burning of kankar |
41. |
Oil varnish generally consists of |
A. | Synthetic resin and spirit |
B. | Oil, wax and resin |
C. | Resin, oil and turpentine |
D. | Spirit, oil and wax |
Answer» C. Resin, oil and turpentine |
42. |
For testing compressive strength of cement, the size of cube used is |
A. | 50 mm |
B. | 70.6 mm |
C. | 100 mm |
D. | 150 mm |
Answer» B. 70.6 mm |
43. |
When a brick is immersed in water for 24 hours and then dried, if |
A. | No grey or white deposits appear on the surface, the brick is free from soluble salts |
B. | 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence |
C. | 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence |
D. | All the above |
Answer» D. All the above |
44. |
For sanitary pipes and chemical stonewares, |
A. | Salt glazing is used |
B. | Lead glazing is used |
C. | Opaque glazing is used |
D. | None of these |
Answer» A. Salt glazing is used |
45. |
The most commonly used retarder in cement is |
A. | Gypsum |
B. | Calcium chloride |
C. | Calcium carbonate |
D. | None of the above |
Answer» A. Gypsum |
46. |
The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called |
A. | Plutonic rocks |
B. | Hypabyssal rocks |
C. | Volcanic rocks |
D. | Igneous rocks |
Answer» B. Hypabyssal rocks |
47. |
The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is |
A. | Less than 1 |
B. | Equal to 1 |
C. | Greater than 1 |
D. | Less than 1 in beams but greater than 1 in channels |
Answer» A. Less than 1 |
48. |
Non acid-resistant asbestos is: |
A. | Tremolite asbestos |
B. | Chrysotile asbestos |
C. | Amosite asbestos |
D. | None of these |
Answer» B. Chrysotile asbestos |
49. |
The pressure acting on the stones in stone masonry construction should be |
A. | Along the direction of bedding planes |
B. | At 45° to the direction of bedding planes |
C. | At 60° to the direction of bedding planes |
D. | Perpendicular to the direction of bedding planes |
Answer» D. Perpendicular to the direction of bedding planes |
50. |
Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following: |
A. | Alumina |
B. | Lime |
C. | Iron-oxide |
D. | Magnesia |
Answer» A. Alumina |
51. |
The type of bond provided in brick masonry for carrying heavy loads is |
A. | Single Flemish bond |
B. | Double Flemish bond |
C. | English bond |
D. | Zigzag bond |
Answer» C. English bond |
52. |
Blister steel |
A. | Is obtained by cementation process |
B. | Is full of fissures and cavities |
C. | Can be easily welded |
D. | All the above |
Answer» D. All the above |
53. |
Gypsum is a |
A. | Mechanically formed sedimentary rock |
B. | Igneous rock |
C. | Chemically precipitated sedimentary rock |
D. | Metamorphic rock |
Answer» C. Chemically precipitated sedimentary rock |
54. |
Seasoning of timber is done |
A. | To make it water proof |
B. | To paint its surface |
C. | To increase its temperature |
D. | To remove water |
Answer» D. To remove water |
55. |
Which of the following is a rock? |
A. | Quartz |
B. | Mica |
C. | Gypsum |
D. | None of the above |
Answer» C. Gypsum |
56. |
The tendency of a stone is, to split along: |
A. | Texture |
B. | Fracture |
C. | Cleavage |
D. | Structure |
Answer» C. Cleavage |
57. |
Which of the following stone is best suited for construction of piers and abutments of a railway bridge? |
A. | Granite |
B. | Sand stone |
C. | Lime stone |
D. | Quartzite |
Answer» A. Granite |
58. |
Cast iron contains carbon approximately |
A. | 1.5% to 5.5% |
B. | 0.05% to 1.75% |
C. | 0.250 % |
D. | None to these |
Answer» A. 1.5% to 5.5% |
59. |
Which of the following trees yields hard wood? |
A. | Deodar |
B. | Chir |
C. | Shishum |
D. | Pine |
Answer» C. Shishum |
60. |
Soundness of cement is tested by |
A. | Vicat's apparatus |
B. | Le-chatelier apparatus |
C. | Compressive strength testing apparatus |
D. | None of these |
Answer» B. Le-chatelier apparatus |
61. |
First class timber has an average life of |
A. | Less than one year |
B. | 1 to 5 years |
C. | 5 to 10 years |
D. | More than 10 years |
Answer» D. More than 10 years |
62. |
Bitumen may be dissolved in |
A. | Carbondioxide |
B. | Water |
C. | Sodium chloride |
D. | Carbon disulphide |
Answer» D. Carbon disulphide |
63. |
Which of the following ingredients of the brick earth enables the brick to retain its shape? |
A. | Alumina |
B. | Silica |
C. | Iron |
D. | Magnesia |
Answer» B. Silica |
64. |
Veneering means |
A. | Carving out designs on timber planks |
B. | Chemically treating timber planks |
C. | Thick layer of superior wood glued to inferior wood |
D. | Thin layer of superior wood glued to inferior wood |
Answer» C. Thick layer of superior wood glued to inferior wood |
65. |
Number of bricks required for one cubic metre of brick masonry is |
A. | 400 |
B. | 450 |
C. | 500 |
D. | 550 |
Answer» C. 500 |
66. |
Which one of the following is used for preparing porcelain? |
A. | Clay |
B. | Feldspar |
C. | Quartz |
D. | All of these |
Answer» D. All of these |
67. |
The main ingredients of Portland cement are |
A. | Lime and silica |
B. | Lime and alumina |
C. | Silica and alumina |
D. | Lime and iron |
Answer» A. Lime and silica |
68. |
Pick up the correct statement from the following: |
A. | Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish |
B. | Cracked paints may be cured by removing paint and giving a fresh coat of paint |
C. | Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps |
D. | All the above |
Answer» D. All the above |
69. |
After storage, the strength of cement |
A. | Decreases |
B. | Increases |
C. | Remains same |
D. | May increase or decrease |
Answer» A. Decreases |
70. |
A bull nose brick is not used for |
A. | Rounding off sharp corners |
B. | Pillars |
C. | Decoration purpose |
D. | Arches |
Answer» D. Arches |
71. |
The most common admixture which is used to accelerate the initial set of concrete is |
A. | Gypsum |
B. | Calcium chloride |
C. | Calcium carbonate |
D. | None of the above |
Answer» B. Calcium chloride |
72. |
Chlorite, a green colour mineral is mainly derived from the decomposition of |
A. | Augite |
B. | Biotite |
C. | Hornblende |
D. | All of these |
Answer» A. Augite |
73. |
The ultimate tensile strength of structural mild steel is about |
A. | 160 N/mm² |
B. | 260 N/mm² |
C. | 420 N/mm² |
D. | 520 N/mm² |
Answer» C. 420 N/mm² |
74. |
Asbestos |
A. | Is a natural fibrous mineral substance |
B. | Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) |
C. | Contains iron oxide and alumina |
D. | All the above |
Answer» D. All the above |
75. |
A queen closer is a |
A. | Brick laid with its length parallel to the face or direction of wall |
B. | Brick laid with its breadth parallel to the face or direction of wall |
C. | Brick having the same length and depth as the other bricks but half the breadth |
D. | Brick with half the width at one end and full width at the other |
Answer» C. Brick having the same length and depth as the other bricks but half the breadth |
76. |
The percentage of alumina and silica in good fire clay vary respectively is |
A. | 25, 75 |
B. | 30, 70 |
C. | 35, 65 |
D. | All of these |
Answer» A. 25, 75 |
77. |
The proportions of lime and sand in the mortar normally used in brick construction are |
A. | 1 : 2 |
B. | 1 : 4 |
C. | 1 : 6 |
D. | 1 : 8 |
Answer» A. 1 : 2 |
78. |
Index number expressing the relative sizes of both coarse and fine aggregates, is called |
A. | Proportioning of aggregates |
B. | Fineness modulus |
C. | Grading of aggregates |
D. | None of these |
Answer» B. Fineness modulus |
79. |
Which of the following sedimentary rocks changes into quartzite by metamorphic action? |
A. | Sand stone |
B. | Lime stone |
C. | Shale |
D. | Gypsum |
Answer» A. Sand stone |
80. |
Lime putty |
A. | Is made from hydraulic lime |
B. | Is made by adding lime to water |
C. | Can be used only upto three days |
D. | All of above |
Answer» D. All of above |
81. |
The stone suitable for rubble masonry should be. |
A. | Hard |
B. | Tough |
C. | Heavy |
D. | Light |
Answer» A. Hard |
82. |
Pick up the correct statement from the following: |
A. | Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer |
B. | Cupola furnace is used for the manufacture of cast iron |
C. | Red short iron is of no value for welding purpose |
D. | All the above |
Answer» D. All the above |
83. |
Spalling hammer is used for |
A. | Driving wooden headed chisels |
B. | Rough dressing of stones |
C. | Carving of stones |
D. | Breaking small projection of stones |
Answer» B. Rough dressing of stones |
84. |
Bullet proof glass is made of thick glass sheet sandwiched by a layer of |
A. | Steel |
B. | Stainless steel |
C. | High test plastic |
D. | Chromium plate |
Answer» C. High test plastic |
85. |
Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is |
A. | 0° |
B. | 30° |
C. | 45° |
D. | 90° |
Answer» D. 90° |
86. |
According to IS 399-1963, the weight of the timber is specified at |
A. | 8% moisture content |
B. | 10% moisture content |
C. | 12% moisture content |
D. | 14% moisture content |
Answer» C. 12% moisture content |
87. |
The internal size of mould used in brick preparation is |
A. | Equal to the size of a fully burnt brick |
B. | Smaller than the size of a fully burnt brick |
C. | Greater than the size of a fully burnt brick |
D. | None of the above |
Answer» C. Greater than the size of a fully burnt brick |
88. |
Pick up the correct statement from the following: |
A. | The free quartz suddenly expands at a temperature lower than 600°C |
B. | The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2 |
C. | The sand stone with silicates resist a fire in a better way |
D. | All the above |
Answer» D. All the above |
89. |
Quick lime is |
A. | Calcium carbonate |
B. | Calcium oxide |
C. | Calcium hydroxide |
D. | None of the above |
Answer» B. Calcium oxide |
90. |
Pick up the correct statement from the following: |
A. | Styrene resin is produced from ethylene which is made from petroleum |
B. | Styrene resin is light in weight |
C. | Styrene resin transmits ultraviolet waves of light |
D. | All the above |
Answer» D. All the above |
91. |
The initial setting time for ordinary Portland cement as per IS specifications should not be less than |
A. | 10 minutes |
B. | 30 minutes |
C. | 60 minutes |
D. | 600 minutes |
Answer» B. 30 minutes |
92. |
Rapid hardening cement attains early strength due to |
A. | Larger proportion of lime grounded finer than normal cement |
B. | Lesser proportion of lime grounded coarser than normal cement |
C. | Lesser proportion of lime grounded finer than normal cement |
D. | Excess percentage of gypsum |
Answer» A. Larger proportion of lime grounded finer than normal cement |
93. |
With increase in moisture content, the bulking of sand |
A. | Increases |
B. | Decreases |
C. | First increases to a certain maximum value and then decreases |
D. | First decreases to a certain minimum value and then increases |
Answer» C. First increases to a certain maximum value and then decreases |
94. |
Plywood is normally available |
A. | 1 mm thick |
B. | 2 mm thick |
C. | 2 to 3 mm thick |
D. | 3 mm to 4 mm thick |
Answer» D. 3 mm to 4 mm thick |
95. |
Compared to mild steel, cast iron has
|
A. | (i) and (ii) |
B. | (ii) and (iii) |
C. | (iii) and (iv) |
D. | (i) and (iv) |
Answer» D. (i) and (iv) |
96. |
In a mortar, the binding material is |
A. | Cement |
B. | Sand |
C. | Surkhi |
D. | Cinder |
Answer» A. Cement |
97. |
The vehicle used in case of enamel paints is usually |
A. | Linseed oil |
B. | Water |
C. | Varnish |
D. | None of the above |
Answer» C. Varnish |
98. |
In the method of condensation polymerization, |
A. | Low-molecular substances are removed from the high molecular substance |
B. | The reaction proceeds with an evolution of ammonia |
C. | The reaction proceeds with an evolution of hydrogen chloride |
D. | All of the above |
Answer» D. All of the above |
99. |
The slenderness ratio for masonry walls should not be more than |
A. | 10 |
B. | 20 |
C. | 30 |
D. | 40 |
Answer» B. 20 |
100. |
Sand stone is |
A. | Sedimentary rock |
B. | Metamorphic rock |
C. | Igneous rock |
D. | Volcanic rock |
Answer» A. Sedimentary rock |
Done Reading?