Water emerges from an ogee spillway with velocity 13.m/s and depth = 3.0 m at its toe. The tail water depth required to form a hydraulic jump at the toe is
-
6.48 m -
5.24 m -
3.24 m -
2.24 m
An outlet irrigates an area ofha. The discharge (l/s) required at this outlet to meet the evapotranspiration requirement ofmm occurring uniformly indays neglecting other field losses is
-
2.52 -
2.31 -
2.01 -
1.52
The effective length of a circular electric pole of length L and constant diameters erected on ground is,
-
0.80 L -
1.20 L -
1.50 L -
2.00 L
In a BOD test, 5 ml of waste is added toml of aerated pure water. Initial dissolved oxygen (D.O) content of the diluted sample is 7.8 mg/l. After 5 days of incubation at 20°C, the D.O. content of the sample is reduced to 4.4 mg/l. The BOD of the waste water is :
-
196 mg/l -
200 m/l -
204 mg/l -
208 mg/l
A stable channel is to be designed for a discharge of Q m3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by
-
(Qf2/140)1/6 -
(Qf/140)1/3 -
(Q2f2/140)1/6 -
0.48 (Q/f)1/3
Bituminous materials are used in highway construction primarily because of their :
-
cementing and water-proofing properties -
load bearing capacity -
high specific gravity -
black colour which facilitates road markings
According to Darcy's law for flow through porous media, the velocity is proportional to
-
Effective stress -
hydraulic gradient -
cohesion -
stability number
The temporary hardness of water, is caused by:
-
dissolved carbondioxide -
bicarbonates and carbonates of calcium and magnesium -
bicarbonates of sodium and potassium -
carbonates of calucium and magnesium
Bending moments at joint b and c of the portal frame are respectively : 
-
+ p l/2, - p l/2 -
+ p l/2, + p l/2 -
+ p l/4, - p l/4 -
+ p l/4, + p l/4
Shear centre for an angle-purlin as shown in the below figure is located at, 
-
X -
Y -
Z -
none
Rapid curing cut back bitumen is produced by blending bitumen with
-
Kerosene -
Benzene -
Diesel -
Petrol
The temporary hardness of water, is caused by:
-
dissolved carbondioxide -
bicarbonates and carbonates of calcium and magnesium -
bicarbonates of sodium and potassium -
carbonates of calucium and magnesium
The expression for the specific speed of a pump :
-
does not include the diameter of the impeller -
yields larger values for radial pumps than for axial flow pump -
is necessarily non dimensional -
includes power as one of the variables
Bending moments at joint b and c of the portal frame are respectively :
-
+ p l/2, - p l/2 -
+ p l/2, + p l/2 -
+ p l/4, - p l/4 -
+ p l/4, + p l/4
Bending moments at joint b and c of the portal frame are respectively :
-
+ p l/2, - p l/2 -
+ p l/2, + p l/2 -
+ p l/4, - p l/4 -
+ p l/4, + p l/4
The temporary hardness of water, is caused by:
-
dissolved carbondioxide -
bicarbonates and carbonates of calcium and magnesium -
bicarbonates of sodium and potassium -
carbonates of calucium and magnesium
The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is 
-
3000 mm -
4600 mm -
4750 mm -
6400 mm
Bending moments at joint b and c of the portal frame are respectively :
-
+ p l/2, - p l/2 -
+ p l/2, + p l/2 -
+ p l/4, - p l/4 -
+ p l/4, + p l/4
Generally the maximum deflection/span ratio of a steel member should not exceed
In an area ofhectare, water table drops by 4 m. If the porosity is 0.and the specific retention is 0.change in volume of storage in the aquifer is
-
160 m3 -
1.6 x 106 m -
8 x 106 m3 -
1.6 x 103 m3
Shear centre for an angle-purlin as shown in the below figure is located at,
-
X -
Y -
Z -
none
In using the data from a plate bearing test for determining the modulus of subgrade reaction, the value of settlement to be used is :
-
1.25 mm -
2.50 mm -
3.75 mm -
1.75 mm
According to Darcy's law for flow through porous media, the velocity is proportional to
-
Effective stress -
hydraulic gradient -
cohesion -
stability number
The settlement of prototype in granular material may be estimated using plate load test data from the following expression :
The following two statements are made with reference to the planar truss shown below 
- The truss is statically determinate
- The truss is kinematically determinate
With refernece to the above statements, which of the following applies ?
-
Both statements are ture. -
Both statements are false. -
II is true but I false. -
I is true but II is false.
Generally the maximum deflection/span ratio of a steel member should not exceed
An isolated T beam is used as a walkway. The beam is simply supported with an effective span of 6 m. The effective width of flange, for the cross-section shown in the below figure is 
-
900 mm -
1000 mm -
1259 mm -
2200 mm
A stable channel is to be designed for a discharge of Q m3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by
-
(Qf2/140)1/6 -
(Qf/140)1/3 -
(Q2f2/140)1/6 -
0.48 (Q/f)1/3
An isolated T beam is used as a walkway. The beam is simply supported with an effective span of 6 m. The effective width of flange, for the cross-section shown in the below figure is
-
900 mm -
1000 mm -
1259 mm -
2200 mm
An isolated T beam is used as a walkway. The beam is simply supported with an effective span of 6 m. The effective width of flange, for the cross-section shown in the below figure is
-
900 mm -
1000 mm -
1259 mm -
2200 mm