Description : The energy equation, E + (p/ρ) + (V 2 /2g) + gZ = constant (E = internal energy/mass), is applicable to (A) Perfect gases only (B) Isothermal flow of gases (C) Adiabatic unsteady flow of gases (D) All compressible fluids
Last Answer : (D) All compressible fluids
Description : Practical fluids (A) Are viscous (B) Possess surface tension (C) Are compressible (D) Possess all the above properties
Last Answer : Answer: Option D
Description : Pick out the wrong statement. (A) The shear stress at the pipe (dia = D, length = L) wall in case of laminar flow of Newtonian fluids is (D/4L). ∆p (B) In the equation, T. gc = k. ... to motion (D) With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids
Last Answer : (D) With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids
Description : Potential flow is the flow of (A) Compressible fluids with shear (B) Compressible fluids with no shear (C) Incompressible fluids with shear (D) Incompressible fluids with no shear
Last Answer : (D) Incompressible fluids with no shear
Description : With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge (A) Increases (B) Decreases (C) Remains constant (D) Increases linearly
Last Answer : (A) Increases
Description : Pick out the wrong statement. (A) For the compressible cake, voidage & the specific resistance of the cake can be assumed to be constant (B) Cake resistance is independent of the pressure ... Crushing of explosive materials are done by employing dry-grinding (D) Gyratory crusher is a coarse crusher
Last Answer : (B) Cake resistance is independent of the pressure drop
Description : A perfect gas (A) Has constant viscosity (B) Has zero viscosity (C) Is in compressible (D) None of the above
Description : A compressible papule or plaque of dermal oedema, red or white in colour. A. Urticaria (Missed. B. Erythema C. Wheal (Missed. D. Purpura Ans: A,C 118. ... collection of pus in a blister. Pustules can be seen in psoriasis A. True B. False
Last Answer : Ans: A
Description : Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid (A) Lies above the centroid of the plane surface (B) Is independent of the specific weight of the fluid (C) Is different for different fluids (D) Is at the centroid of the plane surface
Last Answer : (B) Is independent of the specific weight of the fluid
Description : The specific cake resistance for compressible sludges is a function of the pressure drop (A) Over cake (B) Over medium (C) Overall (D) None of these
Last Answer : (A) Over cake
Description : With increase in the shear rate, the apparent viscosity of pseudo-plastic fluids (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease; depends on the magnitude of shear rate
Last Answer : (B) Decreases
Description : Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the ... (A) Increase (B) Decrease (C) Remain unchanged (D) Data insufficient to predict relative pressure drop
Last Answer : (B) Decrease
Description : Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability (A) Increases by 25 % (B) Increases by 50 % (C) Increases by 33.3 % (D) Decreases by 33.3 %
Last Answer : (B) Increases by 50 %
Description : The ultimate Settlement of a soil is directly proportional to: (A) Depth of the compressible soil strata (B) Compressive index (C) Both (a) and (b) (D) None of these
Last Answer : (D) None of these
Description : Pick up the incorrect statement from the following: (A) Compaction has no effect on the structure of a soil (B) Permeability decreases with increase in the dry density of a compacted soil (C) ... a dry side compacted soil (D) Dry side compaction soils swell more when given access to moisture
Last Answer : (A) Compaction has no effect on the structure of a soil
Description : Cohesive soils are generally (A) Plastic and also compressible (B) Elastic and also compressible (C) Plastic but incompressible (D) None of these
Last Answer : (A) Plastic and also compressible
Description : 04. All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow. A) Correct B) Incorrect
Last Answer : A
Description : A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow. (A) Incompressible (B) Compressible (C) Viscous (D) None of these
Last Answer : Answer: Option A
Description : Water is __________ liquid. (A) A compressible (B) An incompressible (C) Both A and B (D) None of these
Last Answer : Answer: Option B
Description : A point, in a compressible flow where the velocity of fluid is zero, is called (A) Critical point (B) Vena contracta C) Stagnation point (D) None of these
Last Answer : Answer: Option C
Description : The bulk modulus of elasticity (A) Has the dimensions of 1/pressure (B) Increases with pressure (C) Is large when fluid is more compressible (D) Is independent of pressure and viscosity
Description : A fluid is said to be ideal, if it is (A) Incompressible (B) Viscous and incompressible (C) Inviscous and compressible (D) Inviscous and incompressible
Description : Which of the following statement is correct? (A) In a compressible flow, the volume of the flowing liquid changes during the flow (B) A flow, in which the volume of the flowing liquid does not change, ... their own axes while flowing, the flow is said to be rotational flow (D) All of the above
Description : Pile foundation is generally provided if soil is (A) Compressible (B) Water logged (C) Made up (D) All the above
Description : Negative skin friction (A) Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile (B) Develops due to lowering of ground water (C) Both (a) and (b) (D) Neither (a) not (b)
Description : Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by ... it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water
Last Answer : c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions
Description : True meridians are generally preferred to magnetic meridians because (A) These converge to a point (B) These change due to change in time (C) These remain constant (D) None of these
Last Answer : (C) These remain constant
Description : 17. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid. A) True B) False
Description : Specific heat of air at constant pressure is equal to (a) 0.17 (b) 0.21 (c) 0.24 (d) 1.0 (e) 1.41
Last Answer : Answer : c
Description : Composite property applicable to all fluids a. Entropy b. Enthalpy c. Specific Heat d. None of the above
Last Answer : Enthalpy
Description : The most specific & sensitive method for assessment of compliance can be used to detect potent therapeutic agent in body fluids is a) Drug analysis. b) Interrogation. c) Urine marker. d) Residual Tablet counting.
Last Answer : a) Drug analysis.
Description : Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for ... a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature
Last Answer : (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs
Description : Magnetic declination at any place (A) Remains constant (B) Does not remain constant (C) Fluctuates (D) Changes abruptly
Last Answer : (B) Does not remain constant
Description : The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test
Description : . With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor
Last Answer : Option A
Description : Uniform flow occurs when (A) The flow is steady (B) The flow is streamline (C) Size and shape of the cross section in a particular length remain constant (D) Size and cross section change uniformly along length
Description : In an isothermal atmosphere, the pressure (A) Decreases linearly with elevation (B) Remain constant (C) Varies in the same way as the density (D) Increases exponentially with elevation
Description : bulk modulus of elasticity with increase in pressure (A) Increases (B) Decreases (C) Remain constant (D) Increases first up to certain limit and then decreases
Description : The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream (A) Keeps on increasing (B) Keeps on decreasing (C) Remain constant (D) May increase/decrease
Description : When a man circles round the earth in a satellite, then (a) His mass becomes zero but weight remains constant (b) Mass remains constant but weight becomes zero (c) Both mass and weight remain constant (d) Both mass and weight remain zero
Last Answer : Ans:(b)
Description : C.V. (kcal/Nm3 ) of gaseous fuels __________ with increase in molecular weight. (A) Decreases (B) Increases (C) Remain constant (D) May increase or decrease, depends on combustibles
Last Answer : (D) May increase or decrease, depends on combustibles
Description : 19. The density of a liquid in kg/m3 is numerically equal to its specific gravity. A) True B) False
Description : A 25 cm 25 cm 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m 1m 1cm ... 19.2 kg to 17.6 kg is (A) 1000 (B) 1500 (C) 2000 (D) 2500
Last Answer : (A) 1000
Description : Pick up the correct statement from the following: (A) The permeability of the coarse-grained soils may be reduced by grouting (B) The process of injecting fluids (i.e. grouts) into the pores space of the soil is called grouting (C) The grouting increases the soil strength (D) All the above
Description : Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids
Description : Choose the wrong statement (A) Fluids are capable of flowing (B) Fluids conform to the shape of the containing vessels (C) When in equilibrium, fluids cannot sustain tangential forces (D) When in equilibrium, fluids can sustain shear forces
Description : Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called (A) Adhesion (B) Cohesion (C) Viscosity (D) Compressibility
Description : Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above
Description : The continuity equation is connected with (A) Open channel/pipe flow (B) Compressibility of fluids (C) Conservation of mass (D) Steady/unsteady flow
Description : Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above