One bag of Portland cement, 50 kg in weight, would normally have a bulk volume of

AsCu, a preservative for wood, developed by the Forest Research Institute, Dehradun, comprises of chemicals:

Consider the following statements related to autoclave bricks:
1.Less water absorption compared to other bricks.
2.Noise reduction
3.It is cheap compared to other types of bricks.
4.Requirement of bulk volume of mortar in joints being relatively less compared to other types of brick masonry.
5.Not recommended for outer walls. 
Which of the above statements are relevant to the use of ‘autoclave’ bricks? 

The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as ‘Dense’ is

If the actual thickness of a brick masonry wall is 19 cm, its effective length is 2.70 m, its effective height is 2.82 m and its code specified stiffening coefficient is 1.2 then, for design considerations, the slenderness ratio of the wall will be taken as

Consider the following forms of water in a hydrated cement paste:
1.Capillary water
2.Chemically combined water
3.Interlayer water
4.Adsorbed water 
Which of the above forms of water will, on its/their removal, cause shrinkage of the paste? 

Consider the following statements:High early strength of cement is obtained as a result of
1.Fine grinding.
2.Decreasing the lime content
3.Burning at higher temperature
4.Increasing the quality of gypsum. 
Which of the above statements are correct? 

Consider the following statements related to ‘composite mortar’:
1.Addition of lime to cement mortar improves its workability
2.Composite mortar is obtained by adding 10% by weight of cement and mixing with water.
3.Composite mortar is not preferred in tall buildings.
4.Mechanical grinding is essential for developing composite mortar.Which of the above statements are true in this case? 

Consider the following statements related to ‘non-destructive testing’ of concrete:
1.Indentation test is used to assess the quality of concrete.
2.Resonant Frequency Method is based on a laboratory test.
3.Compressive strength of concrete is estimated through Pulse Velocity Measurement.
4.Dynamic modulus of Elasticity is determined by a Sonometer Test.
5.Thickness of concrete can be estimated by in-situ Rebound Hammer Test. 
Which of the above statements are correct? 

What is the amount of water required for a workable RC of mix 1 : 2: 4 by weight., when W/C is 0-60 and unit weight of concrete is 2400 kg/m³?

Which IS code is used for classification of timber for seasoning purposes?

Consider the following with regard to the application of preservation of timber:
1.Increase in the life span of the member
2.Increase in the strength of the timber
3.Removal of moisture
4.Prevention of growth of fungi by killing them 
Which of the above are correct?

The plies in plywood are so placed that the grains of each ply are

Which of the following is an ODD one as regards ‘requirement of good brick-earth’?

The compressive strength of heavy-duty bricks, as per IS : 2980-1962, should not be less than

Consider the following statements:
1.Brickwork will have high water tightness.
2.Brickwork is preferred for monument structures.
3.Bricks resist fire better than stones
4.Bricks of good quality shall have thin mortar bonds. 
Which of the above statements are correct?

Consider the following statements:A good soil for making bricks should contain
1.30% alumina
2.10% lime nodules
3.Only small quantity of iron oxides
4.15% magnesia 
Which of the above statements are correct?

Which compound of cement is responsible for strength of cement?

Which type of cement is recommended in large mass concrete works such as a dam?

Consider the following statements regarding ‘setting of cement’:
1.Low-heat cement sets faster than OPC.
2.Final setting time decides the strength of cement
3.Initial setting time of Portland Pozzollona is 30 minutes
4.Air-induced setting is observed when stored under damp conditions.
4.Addition of gypsum retards the setting time. 
Which of the above statements are correct? 

Consider the following statements regarding ‘strength of cement’:
1.Strength test on cement is made on cubes of cement-sand mix.
2.Water to be used for the paste is 0.25 P, where P is the water needed for normal consistency.
3.The normal consistency is determined on Le Chatelier’s principle.
4.Cubes are cast in two layers in leak-proof moulds further compacted in each layer by vibration on a machine. 
Which of the above statements are correct? 

Which of the following ingredients refer to binding material of mortar?
1.Cement
2.Lime
3.Sand
4.Ashes 
Select the correct answer using the code given below. 

Consider the following statements:
1.Bricks in masonry are bound by mortar.
2.Mortars make brick damp-proof.
3.Strength of brick in masonry is improved by plastering.
4.Addition of lime improves workability.
5.Marine construction needs sulphate-resistant cement mortar. 
Which of the above statements are relevant for ‘cement mortar’? 

Consider the following parameters of concrete:
1.Impermeability
2.Compactness
3.Durability
4.Desired consistency
5.Workability 
Which of the above parameters are relevant for ‘water-cement ratio’? 

Consider the following statements:Presence of Na₂O and K₂O in concrete leads to
1.Expansive reaction in concrete
2.Cracking of concrete
3.Disruption of concrete
4.Shrinkage of concrete 
Which of the above statements are correct? 

What is the purpose of enlarging a scale in drafting ?

When a drawing is reduced in scale, what happens to the size of the objects depicted ?

What is the purpose of a base map in cartography and surveying ?

What is the purpose of dimensioning in a technical drawing ?

Which surveying technique involves directly measuring distances, angles, and elevation on the ground ?z

What does the term "plan preparation" refer to in the context of cartography and surveying ?

Which type of line is used to represent visible edges in a technical drawing ?

How does aerial photography contribute to mapmaking and surveying ?

What is the primary purpose of using scales in technical drawings ?

What is photogrammetry ?

What is the term for the ratio between the size of an object on a map and its actual size on the ground ?

If a map has a scale of 1:10,000, what does this mean ?

In a map with a fractional scale, how is the numerator interpreted ?

How does remote sensing technology contribute to mapmaking and surveying ?

What is the primary purpose of a scale bar on a map ?

What is the primary purpose of photo interpretation in cartography ?

What technology is often used to capture aerial images from aircraft for mapping purposes ?

Which line is used to represent an edge that is not visible in a technical drawing ?

What is the purpose of lettering in technical drawings ?

Which projection shows the front, top, and side views of an object on a single plane ?

Which type of projection gives a realistic view of an object with depth perception ?

What is the purpose of providing dimensions on a technical drawing ?

Which line type represents the centerline of a circular feature in a technical drawing ?

Which type of projection is commonly used in architectural drawings to represent walls and other features accurately ?

What is the purpose of a construction line in a technical drawing ?