26. A particle of mass 3 kg moving in a straight line decelerates uniformly from a speed of 40 m/s to 20 m/s in a distance of 300 m. Before it comes to rest, it will travel a further distance pf
27. For designing end bearing piles of square cross-section in clays having average unconfmed compressive strength of 6 t/m2, the net ultimate bearing capacity may be taken as
28. The side AD of the square block ABCD as shown in the given figure is fixed at the base and it is under a state of simple shear causing shear stress τ and shear strain π, where The distorted shape is AB'C'D. The diagonal strain (linear) will be
29. Consider the following statements :
Collision diagram is used to
1. study accident pattern
2. eliminate accidents
3. determine remedial measures
4. make statistical analysis of accidents
Of these statements :
30. Consider the following statements :
1. An ascending gradient of 1 in 100 meets an ascending gradient of 1 in 120 to form a Valley curve.
2. A falling gradient of 1 in 25 meets a falling gradient of 1 in 50 to form a summit curve.
3. The length of summit curve is determined on the basis of head light sight distance.
Which one of the statements given above is/are correct ?
31. The rectangular block shown in the given figure is subjected to pure shear to intensity 'q'. If BE represents the i principal plane and the principal stresses are σ1, σ2 ; then the values of θ, σ1 and σ2 will be respectively.
32. The maximum energy stored at elastic limit of a material is called
33. If the pressure carried by a CBR specimen at 2.5 mm penetration is 3.5 N/mm2, the CBR of the soil is
34. If any question arises as to the age of a judge of a High Court, the question shall be decided by the?
35. Activated sludge is the
36. Which are the critical activities of the bar chart shown above ?
37. What is the effective height of a free-standing masonry wall for the purpose of computing slenderness ratio ?
38. To generate 10, 000 hp under a head of 81 m while working at a speed of 500 rpirt, the turbine of choice would be
39. Consider the following statements :
Sand in mortar is needed for
1. decreasing the quantity of cement.
2. reducing shrinkage.
3. decreasing the surface area of the binding material.
4. increasing the strength.
Of these statements :
40. The given figure shows gradually varied flow in an open channel with a beak in bed slope. Types of water surface profiles occurring from left to right are
41. Consider the following strengths of concrete :
1. Cube strength
2. Cylinder strength
3. Split-tensile strength
4. Modulus of rupture
The correct sequence in decreasing order of these strengths is
42. A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is
43. Consider the following methods of preservation of timber :
1. Dipping
2. Brushing or spraying
3. Pressure impregnation
The correct sequence in decreasing order of the effectiveness of these methods of preservation is
44. Purlins are provided, in industrial buildings, over roof trusses to carry dead loads, live loads and wind loads. As per IS code, what are they assumed to be ?
45. Ratio of bearing capacity of double Under Reamed (U.R.) pile to that of single U.R. pile is nearly
46. A soil has a bulk density of 1.80 g/cm3 at water content of 5%. If the void ratio remains constant, then its bulk density for a water content of 10% will be
47. The base width of a soil gravity dam is 25 m. The material of the dam has a specific gravity of 2.56 and the dam is designed as an elementary profile ignoring uplift. What is the approximate allowable height of the dam ?
48. In a gusseted base, when the end of the column is machined smooth for complete bearing, the axial load is transferred to base slab :
49. Which of the following assumptions are made in the analysis of jet impinging normally on a moving plate?
1. Friction between jet and plate is neglected
2. Flow is steady
3. Momentum of jet is unchanged
4. Plate moves at a constant velocity
Choose the correct answer using the codes given below :
50. A 3000 m long line lying at an elevation of 450 m measures 10 cm on a vertical photograph.
The focal length of the camera is 21 cm. The scale of the photograph for the area having an elevation of 1000 m will be