Acid-resistant cement and gypsum are examples of _________ materials.
1.Air binding
2.Hydraulic binding
3.Autoclave binding
4.Sound binding
Posted Date:-2022-04-16 08:58:02
Circular finished stones are generally used for:
1.Pillar
2.Tombstone
3.Landscaping
4.Column
Posted Date:-2022-04-16 08:17:30
Common glass is mainly a mixture of ___________
1.Calcium silicate, potassium silicate and copper silicate
2.Sodium silicate, iron silicate and calcium silicate
3.Aluminium silicate, potassium silicate and iron silicate
4.Magnesium silicate, potassium silicate and zinc silicate
Posted Date:-2022-04-16 09:42:02
Dressing of stones is carried out to:
1.To provide employment to people
2.To make transport of stones to site easy and economic
3.To reduce water content of stone
4.To avoid further works on the stone
Posted Date:-2022-04-16 08:12:29
Dynamite is a more effective explosive than gelignite.
1.True
2.False
Posted Date:-2022-04-16 08:20:30
Fat lime is also called _________
1.Water lime
2.Pure lime
3.Impure lime
4.Lean lime
Posted Date:-2022-04-16 09:07:32
Ferric oxide gives a very light yellow tint to the glass while ferrous oxide imparts a green colour.
1.True
2.False
Posted Date:-2022-04-16 09:43:50
Fine sand is generally used for which of the following works?
1.Masonry
2.Concrete structures
3.Plastering
4.Grinding and polishing
Posted Date:-2022-04-16 08:34:54
Fire-resistant mortar is obtained by the addition of ____________ to the powder of fire-bricks.
1.Silica
2.Sodium silicate
3.Aluminous cement
4.Caustic soda
Posted Date:-2022-04-16 09:18:55
Glass can be made opaque by grinding the surface of the glass with _________
1.Mortar
2.Flint
3.Alcohol
4.Emery
Posted Date:-2022-04-16 09:47:04
he process of heating to redness in the presence of air is called __________
1.Hydraulicity
2.Setting
3.Roasting
4.Calcination
Posted Date:-2022-04-16 08:48:50
Heavy mortars have a bulk density equal to greater than _________
1.500 kg/m3
2.1000 kg/m3
3.1500 kg/m3
4.2500 kg/m3
Posted Date:-2022-04-16 09:17:18
How many types of dressings are there with respect to the place of work?
1.4
2.3
3.2
4.None
Posted Date:-2022-04-16 08:16:43
In order to develop hydraulicity, it is necessary to have _________ and _________ present in chemical combination with the limestone.
1.Alumina and carbon
2.Magnesium and carbon
3.Silica and carbon
4.Alumina and silica
Posted Date:-2022-04-16 09:03:53
In the silvering of glass, a thin coat of ______ is first applied on which silver is then deposited.
1.Tin
2.Zinc
3.Iron
4.Copper
Posted Date:-2022-04-16 09:47:48
Increase in volume of the sand due to the presence of moisture is called ___________ of sand.
1.Bulking
2.Normalising
3.Shrinkage
4.Titrating
Posted Date:-2022-04-16 09:11:40
Kankar is an impure limestone while white chalk is pure limestone.
1.True
2.False
Posted Date:-2022-04-16 09:01:33
Lime is obtained from the calcination of ___________
1.Lime-silica
2.Sandstone
3.Limestone
4.Lime-concrete
Posted Date:-2022-04-16 08:50:14
Lime mortar should be consumed within ___________ after its preparation.
1.2 days
2.14 days
3.36 days
4.36 hours
Posted Date:-2022-04-16 09:22:26
Litharge is _________
1.Lead trioxide
2.Lead sesquioxide
3.Lead dioxide
4.Lead monoxide
Posted Date:-2022-04-16 09:26:11
On the basis of the size of grains, the sand is classified into three categories – coarse, fine, and gravelly sand.
1.True
2.False
Posted Date:-2022-04-16 09:12:15
Quarry faced finished stones are also called:
1.Reticulated finish
2.Hammer faced finished
3.Rock faced stones
4.Plain finish
Posted Date:-2022-04-16 08:19:36
Sand is a fine grained component in soil.
1.True
2.False
Posted Date:-2022-04-16 08:33:01
Slaked lime is __________
1.Calcium oxide
2.Hydrated oxide of calcium
3.Calcium carbonate
4.Calcium silicate
Posted Date:-2022-04-16 08:57:06
Stones are obtained from rocks that are made up of:
1.Ores
2.Minerals
3. Chemical compounds
4.Crystals
Posted Date:-2022-04-15 08:27:23
The chemical composition of quick lime is ____________
1.CaS
2.CaO
3.MgO
4.MgS
Posted Date:-2022-04-16 08:51:14
The process of adding cement in order to improve the quality of lime mortar is known as __________
1.Gauging
2.Piling
3.Slaking
4.Reinforcing
Posted Date:-2022-04-16 09:18:08
The process of slow and gradual cooling of glass articles is known as _________
1.Pressing
2.Rolling
3.Annealing
4.Spinning
Posted Date:-2022-04-16 09:46:21
To detect the presence of organic impurities in sand, solution of ___________ is used.
1.Silver chloride
2.Sodium acetate
3.Sodium hydroxide
4.d) Calcium carbonate
Posted Date:-2022-04-16 09:16:31
What is sand blasting?
1.Process of making carvings on stone surface
2.Quarrying technique
3.Dressing type
4.Process of using sand to blast stone surface
Posted Date:-2022-04-16 08:21:59
What is sand composed of?
1.Silica
2.Silicon
3.Silicon oxide
4.Quartz
Posted Date:-2022-04-16 08:25:35
What is the colour of river sand?
1.Black
2.Brown
3.Grey
4.White
Posted Date:-2022-04-16 09:08:56
What is the colour of sea sand?
1.Blue
2.Light brown
3.Black
4.Red
Posted Date:-2022-04-16 09:13:01
What is the relation between LLR (Line of Least Resistance) and amount of explosives to be used?
1.Higher the LLR, higher the amount of explosive
2.Higher the LLR, lesser the amount of explosive
3.10% more explosive for every 1m of LLR
4.10% less explosive for every 1m of LLR
Posted Date:-2022-04-16 08:08:10
What is used to accelerate the process of rubbing in rubbed finish dressing?
1.Water
2.Water and sand
3.Clay
4.Pebbles
Posted Date:-2022-04-16 08:11:00
Which of the following ions causes the cement to set quickly?
1.Sulphate
2.Carbonate
3.Chloride
4.Nitrate
Posted Date:-2022-04-16 08:47:21
Which of the following is a hand tool used for quarrying?
1.Plier
2.Hammer
3.Quarrying wire
4.XSM
Posted Date:-2022-04-16 07:44:17
Which of the following is a raw material for common glass?
1.Lead dioxide
2.Potassium bicarbonate
3.Salt cake
4.Litharge
Posted Date:-2022-04-16 09:28:39
Which of the following is added to the glass in order to make its colour green?
1.Cobalt oxide
2.Magnesium dioxide
3.Sodium oxide
4.Chromium sesquioxide
Posted Date:-2022-04-16 09:49:34
Which of the following is added to the glass in order to make its colour violet?
1.Ferric oxide
2.Manganese dioxide
3.Tin oxide
4.Copper oxide
Posted Date:-2022-04-16 09:48:30
Which of the following is an autoclave binding material?
1.Quick lime
2.Hydraulic lime
3.Gypsum
4.Lime-silica
Posted Date:-2022-04-16 08:58:57
Which of the following is not a property of fat lime?
1.It readily hardens
2.The colour of fat lime is perfectly white
3.Fat lime slakes vigorously
4.Fat lime sets slowly in the presence of air
Posted Date:-2022-04-16 09:05:35
Which of the following is not a property of good sand?
1.Good sand should be chemically inert
2.It should be clean
3.It should not contain any organic matter
4.It must contain salts that can attract moisture from the atmosphere
Posted Date:-2022-04-16 09:14:03
Which of the following is not a property of the packing mortar used to pack oil wells?
1.It should be water-resistant
2.It should have low homogeneity
3.It should have resistance to subsoil water pressure
4.It should be able to form solid waterproof plugs in voids of rocks
Posted Date:-2022-04-16 09:20:05
Which of the following is not an explosive used for blasting?
1.Gelignite
2.Gunpowder
3.Flash powder
4.Nitrocellulose
Posted Date:-2022-04-16 08:09:22
Which of the following substances is not used as a decolorizer in the manufacturing of glass?
1.Potassium carbonate
2.Antimony oxide
3.Cobalt oxide
4.Manganese dioxide
Posted Date:-2022-04-16 09:44:51
Which type of mortar should be used for damp proof courses and cement concrete roads?
1.Lime mortar (1:2)
2.Lime mortar (1:3)
3.Cement mortar (1:2)
4.Lime cinder mortar (1:4)
Posted Date:-2022-04-16 09:24:06
X-ray shielding mortar is a lightweight mortar having a bulk density of less than 1500 kg/m3.
1.True
2.False
Posted Date:-2022-04-16 09:21:13
_______ is used to indicate pieces of broken glass or waste glass.
1.Sodium bicarbonate
2.Cullet
3.Decolorizer
4.Sand
Posted Date:-2022-04-16 09:29:24
_________ is adopted to prepare small quantities of lime mortar.
1.Grinding
2.Grilling
3.Pounding
4.Digging
Posted Date:-2022-04-16 09:20:47