426. Which one of the following statements is correct ?
As the depth of immersion of a vertical plane surface increases, the location of centre of pressure.
427. A highly sensitive undisturbed clay sample was brought to the laboratory and UU test was performed. The curve of deviator stress versus strain % plot will be (among the four curves shown in the given figure) the one labelled
428. The sequent depth ratio in a hydraulic jump formed in a horizontal rectangular channel is 16.48. The flow is supercritical. What is the value of the Froude number of flow ?
429. Consider the following operations in a spire test :
1. Depress telescope and sight a point on the ground nearer to the instrument
2. Clamp horizontal plates
3. Sight a well defined high point on a high building
4. Change face and repeat the procedure.
The correct sequence of these operations is
430. Probability of a lO-year flood to occur at least once in the next 4 years is
431. Weigh-batching proceeds on
432. A cantilever beam of span l carries a uniformly varying load of zero intensity at the free end and w per metre length at the fixed end. What does the integration of the ordinate of the load diagram between the limits of free and fixed ends of the beam give ?
433. A shaft PQRS is subjected to torques at P, Q, R, S as shown in the given figure.
The maximum torque for the shaft section occurs between
434. When the recirculation ratio in a high rate trickling filter is unity, then what is the value of the recirculation factor ?
435. In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly
436. In the network given in figure, the maximum number of shovels and dumpers required are
437. Consider the following statements :
A good soil for making bricks should contain
1. about 30% alumina
2. about 10% lime nodules
3. a small quantity of iron oxides
4. about 15% magnesia.
Of these statements :
438. Service connection consists of
439. Tetanus is caused by:?
440. What does super-saturation of water body with DO cause ?
441. In a third order traverse, if the standard error of ± 3" is assigned to each of the four source of errors, namely :
(i) reading the vernie
(ii) non-adjustment of transit
(iii) sighting and
(iv) setting over the station, then the total standard error of the work would be
442. Consider the following statements regarding settlement of foundations :
1. Differential settlement of foundation leads to structural damage to the superstructure.
2. In non-cohesive soils, the major component of settlement is due to consolidation.
3. Lowering of ground water table contributes of settlement of foundations.
Of these statements :
443. A solid circular shaft is subjected to a bending moment M and torque T. The ratio of maximum bending stress to the maximum shear stress is given by
444. Which one of the following closely represents the shape of the earth?
445. The term ‘The Third Window’ is associated with which organisation?
446. Based on the Gaussian law of distribution of random errors, the number of errors that are expected to exceed the limit of ± a, where 0 represents the standard deviation, out of 1000 observations is
447. In a trigonometric levelling, the height of the signal used is 4.62 m and the instrument height is 1.25 m. If the horizontal distance of the target from the instrument is 5780 m, then the axis-signal correction is
448. The rotation of a rigid body is governed by What is its angular velocity at t - 2s ?
449. The figure shows a rigid frame fixed at A and hinged at C.
If a pure moment of 20 kNm is applied at B in the plane of the figure, then what is the moment at the fixed end A?
450. The effective throat thickness in mm of a 6 mm size fillet weld with an angle of 75° between the fusion faces is