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A vane 20 cm long and 10 cm in diameter was pressed into soft marine clay at the bottom of a bore hole. Torque was applied gradually and failure occurred at 2000 kg/cm, the cohesion of the clay in kg/cm² is:
In a falling head permeameter, a soil sample 75 mm in diameter and 36mm in length was tested. At the commencement of the test, the initial head was 80 cm and after one hour, the head drops to 40 cm. The coefficient of permeability if the diameter of the stand pipe is 1 cm, in cm/sec will be:
What is the range of silt size particles according to IS classification:
A soil sample has a shrinkage limit of 10% and specific gravity of soil solids as 2.7. The porosity of the soil at shrinkage limit is:
The time taken by clay layer to achieve 50% consolidation is 5 years. If the layer was half as thick, 5 times more permeable and 4 times more compressible then the time that would be required to achieve the same degree of consolidation is :
A normally consolidated clay settled 10 mm when effective stress was increased from 50 kN/m² to 100 kN/m². If the effective stress is further increased from 100 kN/m² to 200kN/m², then further settlement of the day shall be:
The method of pre-stressing concrete in which pre-stressing steel is tensioned against the hardened concrete is:
The permissible concrete stress in tension due to bending of M20 in calculation relating to resistance to cracking as per IS 3370-1965 part II is:
The permissible concrete stress in direct tension of M20 in calculation relating to resistance to cracking asper IS 3370-1965 part II is:
Considering the concept of durability of water tanks, the minimum grade of concrete shall be:
If the cross sectional areas at every 50 m, in a length of 200 m are: 5 m², 10 m², 15 m², 10 m², 5 m² then, volume by trapezoidal rule is
For preliminary calculations the thickness of the base slab of a retaining wall may be taken as .................percent of the height of wall:
Counter fort retaining wall is economical for heights above..........................m:
In design practice of beams the span to overall depth ratio are generally taken in the range:
A ................................................... section is one in which the area of tension steel is such that the ultimate limit state, the ultimate compressive strain in concrete is reached. However the tensile stain in the reinforcing steel is less than the yield strain:
The full fixity at the column may be valid only for columns supported by:
The unsupported length of transverse ties should not exceed............ times the diameter of tie in two directions:
Slenderness ratio of a member is defined as the ratio of the effective length to the........................ of a section:
Upright compression members that support decks in bridges are often called as:
The modulus of rupture of M25 Concrete may be taken as............................ N/mm²
One way slabs are those in which most of the load is carried on the ................................ span
Poisson's ratio of concrete is frequently taken as:
The minimum area of steel in mm has to be provided in a column of size 250 mmx600 mm is:
Basic Value of span to effective depth ratio for span up to 10 m of a continuous beam as per IS 456-2000:
Where a member is built into a masonry wall which develops only partial restraint, the member shall be designed to resist a negative moment at the face of support is................................, Where W is total design load L is the effective span.
The limiting value of the depth of neutral axis (xmax/d) for Fe 500grade steel bars as per IS 456-2000 is:
The percentage of chlorine in fresh bleaching powder is about:
In water treatment, rapid gravity filters are adopted to remove:
The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about:
In a BOD test 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6ppm and it was 4 ppm at the end of 5day incubation at 20°C. The BOD of raw sewage will be:
A pipe which is installed in the house drainage to preserve the water seal of traps is called:
The gas from sludge digestion tank is mainly composed of:
Detention period of grit chambers is kept as:
The Manning's formula is given by the expression:
The planned or systematic actions necessary to provide enough confidence that a product or service will satisfy the given requirements is called
Which of the statements given below is not correct: When there is a dispute in a construction site,
If to, is the optimistic time, tp is the pessimistic time and tm is the most probable time, then the expected time of occurrence of an activity is
Decoupling of the superstructure from substructure resting on a shaking ground is called:
Which of the following does not belong to the class 'shell roof':
A bond in which both header and stretcher come in the same course is:
Deformation in concrete due to sustained loading is:
Choose the correct combination:1-Retarder 2-Accelerator 3-Pozzolana 4-Workability P. Fly Ash Q. Superplasticizer R. Gypsum S. Calcium chloride
'Float' which does not interfere with the start of the subsequent activity in a project is:
As the fineness modulus of aggregate increases its particle size:
Proneness to segregation of fresh concrete is better tested by:
For 45° cranked or bent up bar of dia d, the additional length of 2 bent up is approximately:
The years purchase for 6% interest is:
Steel reinforcement bars in RCC is measured in:
A building costs Rs. 40000, Considering scrap value as 10% of the cost and life as 60 years, the depreciated value after 20 years is:
The covered area of a building measured at floor level is called: