Description : The materials which have the same elastic properties in all directions, are called (A) Isotropic (B) Brittle (C) Homogeneous (D) Hard
Last Answer : (A) Isotropic
Description : Terzaghi's analysis assumes: (A) Soil is homogeneous and isotropic (B) Elastic zone has straight boundaries inclined at = to the horizontal and plastic zones fully developed (C) Failure zones do not extend above the horizontal plane through the base of the footing (D) All the above
Last Answer : Answer: Option D
Description : Isotropic materials have the same __________ in all directions. (A) Induced stresses (B) Density (C) Elastic properties (D) Thermal properties
Last Answer : C) Elastic properties
Description : In a simple bending theory, one of the assumption is that the material of the beam is isotropic. This assumption means that the a. normal stress remains constant in all directions b. ... c. elastic constants are same in all the directions d. elastic constants varies linearly in the material
Last Answer : c. elastic constants are same in all the directions
Description : While propagating through homogeneous, isotropic media, (A) Directions of both the fields are orthogonal (B) Both the fields are at right angles to the direction of propagation (C) Both (a) and (b) (D) Neither (a) nor (b)
Last Answer : Answer: Option C
Description : Hot & cold working of material causes its __________ deformation. (A) Visco-elastic (B) Isotropic (C) Elastic (D) Plastic
Last Answer : (D) Plastic
Description : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure does not fail (a) Firstly Maximum Principal Theory (b) Secondly Maximum Shear Stress Theory (c) Thirdly Maximum Principal Energy Theory (d) None
Last Answer : (a) Firstly Maximum Principal Theory
Description : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure fails (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal strain Theory (c) Thirdly Maximum Principal Energy Theory (d) None
Last Answer : (c) Thirdly Maximum Principal Energy Theory
Description : The advantages of electrometric bearings are a) Permits movement of the structure in all directions b) Serves as a shock absorber due to anti-vibration properties of elestomeric c) better dispersion of longitudinal forces to the approaches d) All of the above*
Last Answer : d) All of the above*
Description : The property of soil which allows it to be deformed rapidly, without rupture, without elastic rebound and without volume change is known as a) Porosity b) Plasticity* c) Stiffness d) Plastic limit
Last Answer : b) Plasticity*
Description : Pick up the correct statement from the following: (A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance (B) In visco ... (C) An orthotropic material has different properties in three mutually perpendicular directions (D) All the above
Last Answer : (D) All the above
Description : What is the difference between isotropic material and homogeneous material ?
Last Answer : In homogeneous material the composition is same throughout and in isotropic material the elastic constants are same in all directions.
Description : The assumption in the theory of bending of beams is: (A) Material is homogeneous (B) Material is isotropic (C) Young's modulus is same in tension as well as in compression (D) All the above
Description : A reinforced concrete beam is assumed to be made of (A) Homogeneous material (B) Heterogeneous material (C) Isotropic material (D) None of these
Last Answer : (B) Heterogeneous material
Description : Pick up the correct assumption of the theory of simple bending (A) The value of the Young's modulus is the same in tension as well as in compression (B) Transverse section of a beam remains ... bending (C) The material of the beam is homogeneous and isotropic (D) All the above
Description : Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)? (A) E = 2G (1 + v) (B) E = G (1 + v) (C) E = G (1 + v)/2 (D) E = 2G (1 + 2v)
Last Answer : (A) E = 2G (1 + v)
Description : Derivation of Thiem's formula Q = 2 (s1 - s2)/2.3 log10 (r2/r1) is based on the assumption (A) The aquifer is homogeneous, isotropic and of infinite depth and area (B) The well is sunk ... (C) The flow lines are radial and horizontal, and the flow is laminar (D) All the above
Description : Darcy's law is applicable to seepage if a soil is (A) Homogeneous (B) Isotropic (C) Incompressible (D) All the above
Description : Coulomb's wedge theory assumes that (A) Back fill is dry, cohesionless, homogeneous and isotropic (B) Slip surface is the plane which passes through the heel of the wall (C) Position and direction of the resultant earth pressure are known (D) All the above
Description : the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and ... the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer
Description : In which of the following directions, the strength of timber is maximum a) Parallel to grains* b) 45 degree to grains c) Perpendicular to grains d) same in all directions
Last Answer : a) Parallel to grains*
Description : What antenna radiates equally in all directions? A. Vertical antenna B. isotropic antenna C. Horizontal antenna D. Dipole antenna
Last Answer : B. isotropic antenna
Description : What optical source radiates light uniformly in all directions? A. Isotropic source B. Lambertian source C. Voltage source D. Ideal source
Last Answer : B. Lambertian source
Description : In isotropic turbulence, the __________ are equal to each other. (A) Temporal velocity components (B) Mean square of velocity fluctuations in the three co-ordinate directions (C) Root mean square of velocity fluctuations in the three co-ordinate directions (D) None of these
Last Answer : (B) Mean square of velocity fluctuations in the three co-ordinate directions
Description : Number of Elastic clips used for one K to BG single line section having 13 length & concrete sleepers of M+7 sleeper density are (a) 5280 (b) 6160* (c) 6250 (d) 6500
Last Answer : (b) 6160*
Description : The ratio of lateral strain to axial strain of a homogeneous material, is known (A) Yield ratio (B) Hooke's ratio (C) Poisson's ratio (D) Plastic ratio
Last Answer : (C) Poisson's ratio
Description : which stage represents optimum conditions for tillage a) Sticky b) Plastic c) Friable ( crumbly ). d) Hard ( cemented )
Last Answer : c) Friable ( crumbly
Description : Plasticity index represents the range of water content between a) Liquid and plastic limit * b) Plastic limit and semi solid limit c) Semisolid Limit and liquid limit d) Liquid limit and solid limit.
Last Answer : a) Liquid and plastic limit *
Description : The numerical difference between the liquid limit and plastic limit of a soil is known as a) Liquidity index b) Plasticity index * c) Shrinkage index d) Consistency index
Last Answer : b) Plasticity index *
Description : The minimum water content at which a reduction in water content will not cause a decrease in the volume of a soil mass is known as a) Plastic limit b) Shrinkage limit* c) Liquid limit d) Consistency limit
Last Answer : b) Shrinkage limit*
Description : Le Chatelier apparatus is used to determine which of the following properties for cement A) Soundness* b) Initial setting time c) Compressive strength d) Tensile strength
Last Answer : A) Soundness*
Description : Quicksand is a) Moist sand containing a small percentage of clay b) Is a condition which generally occurs in coarse sands c) Is a condition in which cohesive properties of soil increase rapidly d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water
Last Answer : d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water
Description : The stress at which extension of a material takes place more quickly as compared to the increase in load, is called (A) Elastic point (B) Plastic point (C) Breaking point (D) Yielding point
Last Answer : (D) Yielding point
Description : The stress at which extension of a material takes place more quickly as compared to increase in load, is called (a) No elastic zone (b) Plastic point (c) Yield point (d) Breaking point
Last Answer : (c) Yield point
Description : A material no longer behaves elastically beyond (A) Plastic limit (B) Limiting load (C) Elastic limit (D) Breaking load
Last Answer : (C) Elastic limit
Description : Which of the following is the most elastic material? (A) Plastic (B) Glass (C) Steel (D) Rubber
Last Answer : (C) Steel
Description : At yield point' of a copper wire A. the load hasn't exceeded the elastic limit yet; so, Hooke's law applies B. the load has already exceeded the elastic limit and the material has become ... stage has passed and the wire has snapped already D. Like Brass and Bronze, Copper has no yield poin
Last Answer : the load has already exceeded the elastic limit and the material has become plastic
Description : At yield point of a test piece, the material (A) Obeys Hooke's law (B) Behaves in an elastic manner (C) Regains its original shape on removal of the load (D) Undergoes plastic deformation
Last Answer : (D) Undergoes plastic deformation
Description : Every material obeys the Hooke's law within its (A) Elastic limit (B) Plastic point (C) Limit of proportionality (D) None of these
Last Answer : (C) Limit of proportionality
Description : Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) ... to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is
Last Answer : Option B
Description : The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic
Last Answer : Ductile
Description : The limit beyond which the material does not behave elastically is known as (a) Proportional limit (b) Elastic limit (c) Plastic limit (d) Yield Point
Last Answer : (b) Elastic limit
Description : Every material obeys the Hooke’s law within (a) Elastic limit (b) Plastic limit (c) Limit of proportionality (d) None of these
Last Answer : c) Limit of proportionality
Description : A brittle material has (a) No elastic zone (b) No plastic zone (c) Large plastic zone (d) None of these
Last Answer : 2
Description : The magnitude of water hammer depends upon the (A) Elastic properties of the pipe material (B) Elastic properties of the liquid flowing through the pipe (C) Speed at which the valve is closed (D) All of the above
Description : A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be a.2.5 m/s b.zero c.5 m/s d.10 m/s e.107 dynes
Last Answer : c. 5 m/s
Description : Loading capacity of chain drive system is based on a) Rate of wear b) Ultimate strength of chain material c) None of (a) and (b) d) Both (a) and (b)
Last Answer : a) Rate of wear
Description : Name the material which is separated from molten steel during chemical reaction of A.T welding? (i) Aluminium oxide (slag). * (ii) Ferrous Oxide (iii) Aluminium (iv) Ferrous
Last Answer : (i) Aluminium oxide (slag). *
Description : To provide inverted filter to improve the hearing capacity of soil the plasticity index of blanketing material should not be greater than a) 15* b) 20 c) 27 d) 35
Last Answer : a) 15*
Description : To provide inverted filter to improve the bearing capacity of soil the liquid limit of blanketing material should not be greater than a) 5 b) 20 c) 27 d) 35
Last Answer : d) 35