Description : In case of an eccentric loading on a bracket subjected to moment M, the tangential force developed in any rivet, at right angles to its radius vector r is (A) Mr/ r² (B) r²/Mr (C) Mr²/ r² (D) Mr/ r²
Last Answer : (A) Mr/ r²
Description : The intensity of direct longitudinal stress in the cross-section at any point distant r from the neutral axis, is proportional to (A) r (B) 1/r (C) r2 (D) 1/r²
Last Answer : (A) r
Description : If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by (A) (5/6) (r/1 + r²) M (B) (5/6) (r²/1 + r²) M (C) (5/6) (r²/1 + r3 ) M (D) (5/6) (r²/1 + r4 ) M
Last Answer : Answer: Option D
Description : If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is (A) w (R + T)/T (B) w (R² + T²)/T (C) w (R + T)/T (D) w (R/T)
Last Answer : Answer: Option B
Description : The area of the cross-section of a road fully in banking shown in the given figure, is (A) [sb² + r² (2bd + sd)²]/(r² - s²) (B) [sb² + r² (2bd + sd)²]/(r² - s5 ) (C) [sb² + r² (2bd + sd)²]/(r - s) (D) None of these
Last Answer : (A) [sb² + r² (2bd + sd)²]/(r² - s²)
Description : Which of the following pair will have identical dimensions? a.Pressure and surface tension b.Work and kinetic energy c.Momentum and force d.Moment of inertia and angular momentum e.None of the above
Last Answer : c. Momentum and force
Description : A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is – (1) zero (2) V/r (3) V/r² (4) V²/r
Last Answer : (4) V²/r Explanation: When a particle is moving in a uniform circular motion with constant speed and radius. the acceleration of the particle is given by v2/r. The particle will exhibit centripetal acceleration.
Description : The dimensions of modulus of elasticity are a.MLT-2 b.107 dynes c.MLT-1 d.ML-2T-1 e.ML-1T-2
Last Answer : e. ML-1T-2
Description : The statement, regarding the size of stones used at the wearing surface. "The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth ... dimension is mischievous" was made by (A) Telford (B) Macadam (C) Tresguet (D) Sully
Description : For high sensivity of the bubble tube (A) A liquid of low viscosity is used (B) A liquid of low surface tension is used (C) The bubble space should be long (D) All the above
Last Answer : (D) All the above
Description : The sensitiveness of a level tube decreases if (A) Radius of curvature of its inner surface is increased (B) Diameter of the tube is increased (C) Length of the vapour bubble is increased (D) Both viscosity and surface tension are increased
Last Answer : (D) Both viscosity and surface tension are increased
Description : Pick up the correct statement from the following: (A) The amount of water retained on the surface of soil grains by molecular attraction, is known as pellicular water (B) The degree of resistance to ... (C) The pellicular water held in any soil, is called field capacity (D) All the above
Description : 07. The ratio of the inertia force to the surface tension force is called Weber's number. A) Correct B) Incorrect
Last Answer : A
Description : 19. In the manufacturing of lead shots, the property of surface tension is utilised. A) Agree B) Disagree
Description : 18. The property of a liquid which enables it to resist tensile stress is called its surface tension. A) Agree B) Disagree
Description : 16. Surface tension force is the product of surface tension per unit length and cross-sectional area of flow. A) Correct B) Incorrect
Last Answer : B
Description : The unit of surface tension is (A) N/m (B) N/m2 (C) N/m3 (D) N-m
Last Answer : Answer: Option A
Description : Falling drops of water become spheres due to the property of (A) Surface tension of water (B) Compressibility of water (C) Capillarity of water (D) Viscosity of water
Description : The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion
Description : The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called (A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Description : Froude's number is the ratio of inertia force to (A) Pressure force (B) Elastic force (C) Gravity force (D) Surface tension force
Last Answer : Answer: Option C
Description : The mercury does not wet the glass. This is due to the property of the liquid known as (A) Cohesion (B) Adhesion (C) Viscosity (D) Surface tension
Description : With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will (A) Decrease (B) Increase (C) Remain unchanged (D) Depend upon the characteristics of liquid
Description : Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure
Description : Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids
Description : A flow in which __________ force is dominating over the viscosity is called turbulent flow. (A) Elastic (B) Surface tension (C) Viscous (D) Inertia
Description : Mercury does not wet glass. This is due to property of liquid known as (A) Adhesion (B) Cohesion (C) Surface tension (D) Viscosity
Description : The force per unit length is the unit of (A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Description : Reynold's number is the ratio of the inertia force to the (A) Surface tension force (B) Viscous force (C) Gravity force (D) Elastic force
Description : Falling drops of water become spheres due to the property of (A) Adhesion (B) Cohesion (C) Surface tension (D) Viscosity
Description : The liquid used in manometers should have (A) Low density (B) High density (C) Low surface tension (D) High surface tension
Description : The rise or depression of liquid in a tube due to surface tension will increase in size of tube will (A) Increase (B) Remain unaffected (C) May increase or decrease depending on the characteristics of liquid (D) Decrease
Description : Free surface of a liquid tends to contract to the smallest possible area due to force of (A) Surface tension (B) Viscosity (C) Friction (D) Cohesion
Description : The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called (A) Density of liquid (B) Specific gravity of liquid (C) Compressibility of liquid (D) Surface tension of liquid
Description : Surface energy per unit area of a surface is numerically equal to (A) Atmospheric pressure (B) Surface tension (C) Force of adhesion (D) Force of cohesion
Description : Alcohol is used in manometers because (A) It has low vapour pressure (B) It is clearly visible (C) It has low surface tension (D) It can provide longer column due to low density
Description : Surface tension (A) Acts in the plane of the interface normal to any line in the surface (B) Is also known as capillarity (C) Is a function of the curvature of the interface (D) Decreases with fall in temperature
Description : The surface tension of mercury at normal temperature is __________ that of water. (A) Same as (B) Lower than (C) Higher than (D) None of these
Description : The variation in the volume of a liquid with the variation of pressure is called its (A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Description : Surface tension has the units of (A) Newton-sec/m B) Newton-m/sec (C) Newton/m (D) Newton
Description : Unit of surface tension is (A) Energy/unit area (B) Velocity/unit area (C) Both of the above (D) It has no units
Description : Capillary action is due to the (A) Surface tension (B) Cohesion of the liquid (C) Adhesion of the liquid molecules and the molecules on the surface of a solid (D) All of the above
Description : For manometer, a better liquid combination is one having (A) Higher surface tension (B) Lower surface tension (C) Surface tension is no criterion (D) High density and viscosity
Description : The tendency of a liquid surface to contract is due to the following property (A) Cohesion (B) Adhesion (C) Viscosity (D) Surface tension
Description : Practical fluids (A) Are viscous (B) Possess surface tension (C) Are compressible (D) Possess all the above properties
Description : Select the correct statement (A) Weber's number is the ratio of inertia force to elastic force. (B) Weber's number is the ratio of gravity force to surface tension force. (C) Weber's number ... force to pressure force. (D) Weber's number is the ratio of inertia force to surface tension force.
Description : The surface tension of mercury at normal temperature compared to that of water is (A) More (B) Less (C) Same (D) More or less depending on size of glass tube
Description : The property of a fluid which enables it to resist tensile stress is known as (A) Compressibility (B) Surface tension (C) Cohesion (D) Adhesion
Description : The property of fluid by virtue of which it offers resistance to shear is called (A) Surface tension (B) Adhesion (C) Cohesion (D) Viscosity
Description : The ratio of the inertia force to the __________ is called Euler's number. (A) Pressure force (B) Elastic force (C) Surface tension force (D) Viscous force