For wall having thickness of wall more than one and a half brick, the following bond is more compact and stronger
In a wooden door, "style" is a
From practical considerations and effective working of the ventilation system, the desired value of rate of air changes per hour is
For ventilation system, the five value of rate of air changes per hour is desired
Quick Lime is
Calcium oxide, commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature
The pressure acting on the stones in stone masonry construction should be
Efflorescence in the bricks is caused due to
efflorescence is caused by soluble alkali salts, the salts will dissolve in water applied to the structure and migrate back into it. These salts would then reappear on the surface as the structure redried
Which of the following is responsible for the initial set and high heat of hydration ?
Tricalcium aluminate (3CaO · Al2O3) is responsible for initial setting of cement and high heat of hydration
The vertical distance between the springing line and highest point of the inner curve of an arch is known as
Ring and ball apparatus is used for the following test of bitumen ?
Softening point of bitumen is conducted by ring and ball apparatus.
Error due to bad ranging is
Imaginary line joining the zero declination on the surface of earth is known as ?
Isogonic lines are lines on the Earth's surface along which the declination has the same constant value, and lines along which the declination is zero are called agonic lines
The curved surface which at every point is perpendicular to the direction of gravity at that point is known as
The curved surface is assumed as level surface for the gravity point
Spire test is used for the permanent adjustment of a theodolite for
Horizontal axis of theodolite is permanently adjusted by using spire test
If a tripod settles in the interval that elapses between taking a back sight reading and following fore sight reading, then the elevation of turning point will be
If a tripod settles in the interval that elapses between taking a back sight reading and following fore sight reading, so the observed foresight is too small and then the elevation of turning point will be too high.
Axis method of traverse correction is used when
Axis method is used to correction in length and the angle is accurately measured already i.e. Length = that length x 12 length of closing error.
If the R.L. of a B.M. is 100.00 m, the back sight is 1.215 m and the fore sight is 1.870 m, the R.L. of forward station is
100.00+1.215-1.875 = 99.345
A curve of varying radius introduced between that two branches of compound curve is known as
A curve of varying radius introduced between that two branches of compound curve is known as transition curve