501. Which one of the following statements is not correct ?
A control section in an open channel is the site
502. For a given storm, other factors remaining same :
503. Two small orifices A and B of diameters 1 cm and 2 cm, respectively, are placed on the sides of a tank at depths of h1 and h2 below the open liquid surface. If the discharges through A and B are equal, then the ratio of h1 and h2 (assuming equal Cd values) will be
504. The moment of inertia of a square cross-section of side 'b' about its diagonal is
505. The gland which in relation to body size is largest at birth and then gradually shrinks after puberty, is?
506. What is the ratio of the permissible bearing stress in power driven shop rivets relative to the yield stress of mild steel ?
507. If the methyl orange alkalinity of water equals or exceeds total hardness, all of the harness is
508. Which one of the following statements is correct ? The number of unknowns to be determined in the stiffness method is equal to :
509. If the diameter of a shaft subjected to torque alone, is doubled, then the horse power P can be increased to
510. The PH of human blood is between?
511. Consider the following factors :
1. Mass of ships to be berthed
2. Overall transit time
3. Speed of berthing
4. Environmental conditions of the port
Which of these factors are taken into account while selecting the type of fender system ?
512. Which one of the following statements is correct with respect to rigid pavements ?
513. Consider the following statements :
Selection of the type and grade of the bituminous binder is made on the basis of
1. cost of the binder material.
2. climatic conditions of the area and the construction technique.
3. degree of importance of the road.
4. thickness of pavement layer to be constructed.
Which of these statements is/are correct ?
514. Consider the following statements :
1. Welded structures are usually lighter than riveted structures.
2. Welding allows the arrangement of structural components in such a manner that the joint provides maximum efficiency.
3. During welding, the members do not get distorted.
Of these statements :
515. Which is the major pollutant present in photochemical smog ?
516. What are the bending moments at the ends A and B of a uniform beam AB fixed in direction and position at A and B when acted upon by two concentrated loads at l/3rd span as shown in the figure ?
517. Due to rise in temperature, the viscosity and unit weight of percolating fluid are reduced to 70% and 90% respectively. Other things being constant, the change in coefficient of permeability will be
518. The correct sequence of the sludge digestion steps is
519. Consider the following statements :
Kiln seasoning of timber results is :
1. reduced density.
2. reduced life.
3. dimensional stability.
Which of the following given above is/are correct ?
520. The approximate ratio of strength of 15 cm x 30 cm concrete cylinder to that of 15 cm cube of the same concrete is
521. Consider the following characteristic of soil layer :
1. Poisson's ratio
2. Young's modulus
3. Finite nature of soil layer
4. Effect of water table
5. Rigidity of footing
Westergaard's analysis for pressure distribution in soils utilises
522. Consider the following statements associated with the laws of weights in the theory of erros :
1. If an equation is multiplied by its own weight, then the weight of the resulting equation is equal to the reciprocal of the weight of the equation.
2. The weight of the algebraic sum of two or more quantities is equal to the reciprocal of the sum of the individual weights.
3. If the quantity of a given weight is multiplied by a factor, then the weight of the result is obtained by dividing its given weight by the square root of that factor.
4. If the quantity of a given weight is divided by a factor, then the weight of the result is obtained by multiplying its given weight by the square of that factor.
Of these statements :
523. Which one of the following Acts was the first attempt to introduce in India an integrated system covering health, maternity and accidental benefits for industrial workers?
524. The Chezy's coefficient C is related to Darcy-Weisbach friction factor f as
525. What is the maximum permissible longitudinal pitch in staggered riveted compression joints ?