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Objective Questions

Latest CUET PG Atmospheric Science Exam Question (Objective Questions), MCQ in English

Subjects : Atmospheric Science

Question Bank CUET PG Atmospheric Science Exam - English
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Atmospheric Science

Question 1Single Answer
Stress is defined as?
  1. AForce per unit mass
  2. BForce per unit area
  3. CEnergy per unit volume
  4. DPressure × volume
Question 2Single Answer
Hooke’s Law states that within elastic limit?
  1. AStress is inversely proportional to strain
  2. BStrain is proportional to time
  3. CStress is proportional to strain
  4. DStress is independent of strain
Question 3Single Answer
The SI unit of Young’s modulus is?
  1. AN/m2
  2. BN/m
  3. CN·m
  4. DJ/kg
Question 4Single Answer
Which of the following is not an elastic constant?
  1. AYoung’s modulus
  2. BPoisson’s constant
  3. CModulus of rigidity
  4. DBulk modulus
Question 5Single Answer
Poisson’s ratio is defined as?
  1. ALongitudinal strain / Lateral strain
  2. BLateral strain / Longitudinal strain
  3. CStress / Strain
  4. DStrain / Stress
Question 6Single Answer
Bulk modulus measures?
  1. AResistance to change of shape
  2. BElastic limit
  3. CResistance to flow
  4. DResistance to change of volume
Question 7Single Answer
The relation between stress and strain is linear for?
  1. APlastic materials
  2. BElastic materials within elastic limit
  3. CLiquids
  4. DGases
Question 8Single Answer
The work done per unit volume in stretching a wire is?
  1. AStress × strain
  2. B½ × stress × strain
  3. CStress / strain
  4. D½ × strain / stress
Question 9Single Answer
The property of a liquid surface to contract and acquire minimum surface area is known as?
  1. ASurface tension
  2. BCohesion
  3. CAdhesion
  4. DCapillarity
Question 10Single Answer
Surface tension has dimensions of?
  1. AM0L0T0
  2. BM1T-2
  3. CM1L0T-1
  4. DM1T-2L0
Question 11Single Answer
The SI unit of surface tension is?
  1. AN/m2
  2. BN/m
  3. CJ/kg
  4. DW/m2
Question 12Single Answer
Capillarity is the phenomenon due to?
  1. AGravity
  2. BViscosity
  3. CSurface tension
  4. DElasticity
Question 13Single Answer
In capillary rise, the liquid rises due to?
  1. ACohesive forces
  2. BAdhesive forces greater than cohesive forces
  3. CGravitational forces
  4. DCentrifugal forces
Question 14Single Answer
If surface tension decreases, capillary rise will?
  1. AIncrease
  2. BDecrease
  3. CRemain constant
  4. DFirst increase then decrease
Question 15Single Answer
Viscosity is the property of a fluid by virtue of which it?
  1. AOffers resistance to flow
  2. BResists deformation
  3. CExpands with heat
  4. DContracts on cooling
Question 16Single Answer
The SI unit of coefficient of viscosity is?
  1. APoise
  2. BW/m2
  3. Ckg/m2
  4. DN·s/m2
Question 17Single Answer
Liquids which obey Newton’s law of viscosity are called?
  1. AInviscid fluids
  2. BNon-Newtonian fluids
  3. CCompressible fluids
  4. DNewtonian fluids
Question 18Single Answer
The slope of velocity gradient for laminar flow is called?
  1. ARate of shear strain
  2. BShear strain
  3. CShear stress
  4. DCoefficient of viscosity
Question 19Single Answer
With increase in temperature, viscosity of liquids?
  1. AIncreases
  2. BDecreases
  3. CRemains constant
  4. DBecomes zero
Question 20Single Answer
With increase in temperature, viscosity of gases?
  1. AIncreases
  2. BDecreases
  3. CRemains constant
  4. DBecomes infinite
Question 21Single Answer
Poiseuille’s law is applicable to?
  1. ATurbulent flow
  2. BLaminar flow
  3. CCompressible flow
  4. DRotational flow
Question 22Single Answer
According to Poiseuille’s equation, rate of flow propotional to?
  1. ARadius4
  2. BRadius2
  3. CRadius
  4. DRadius3
Question 23Single Answer
Poiseuille’s equation relates?
  1. AEnergy, volume, and mass
  2. BPressure, flow, and viscosity
  3. CForce, acceleration, and density
  4. DTemperature, flow, and time
Question 24Single Answer
The flow of liquid in narrow tubes is called?
  1. ABoth a and b
  2. BLaminar flow
  3. CCapillary flow
  4. DStreamline flow
Question 25Single Answer
The critical velocity for laminar flow depends on?
  1. ASurface tension
  2. BPressure only
  3. CGravity only
  4. DDensity, viscosity, and radius
Question 26Single Answer
Reynolds number is defined as?
  1. APressure / Viscosity
  2. BViscous force / Inertial force
  3. CInertial force / Viscous force
  4. DDensity × velocity × volume
Question 27Single Answer
The flow is laminar if Reynolds number is?
  1. A< 2000
  2. B> 2000
  3. C< 100
  4. D> 5000
Question 28Single Answer
The flow becomes turbulent when Reynolds number exceeds?
  1. A1000
  2. B500
  3. C3000
  4. D2000
Question 29Single Answer
The dimension of viscosity is?
  1. AM0L0T0
  2. BML-2T-2
  3. CML-1T-1
  4. DM2L-2T-2
Question 30Single Answer
The equation of continuity represents?
  1. AConservation of charge
  2. BConservation of energy
  3. CConservation of momentum
  4. DConservation of mass
Question 31Single Answer
Bernoulli’s theorem is based on?
  1. AConservation of momentum
  2. BConservation of mass
  3. CConservation of energy
  4. DNewton’s third law
Question 32Single Answer
Bernoulli’s theorem is applicable to?
  1. ATurbulent compressible flow
  2. BSteady incompressible non-viscous flow
  3. CRotational flow
  4. DViscous compressible flow
Question 33Single Answer
Bernoulli’s equation neglects?
  1. AGravity
  2. BPressure
  3. CViscosity
  4. DVelocity
Question 34Single Answer
The term ½pv2 in Bernoulli’s equation represents?
  1. AKinetic energy per unit mass
  2. BPotential energy per unit mass
  3. CPressure energy per unit volume
  4. DInternal energy
Question 35Single Answer
The rise of liquid in a capillary tube is inversely proportional to?
  1. ARadius4
  2. BRadius2
  3. CRadius3
  4. DRadius
Question 36Single Answer
In Bernoulli’s equation, the sum of pressure energy, kinetic energy, and potential energy per unit volume is?
  1. AInfinite
  2. BConstant everywhere
  3. CZero
  4. DConstant along a streamline
Question 37Single Answer
The pressure decreases when the speed of fluid increases according to?
  1. AArchimedes’ principle
  2. BPascal’s law
  3. CBernoulli’s theorem
  4. DNewton’s law
Question 38Single Answer
The device that measures fluid velocity using pressure difference is?
  1. AVenturimeter
  2. BBarometer
  3. CThermometer
  4. DHydrometer
Question 39Single Answer
In a horizontal pipe, when area decreases, the velocity of fluid?
  1. ADecreases
  2. BIncreases
  3. CRemains constant
  4. DBecomes zero
Question 40Single Answer
The dynamic lift experienced by an airplane wing is explained by?
  1. ANewton’s third law
  2. BPascal’s law
  3. CBernoulli’s principle
  4. DArchimedes’ principle
Question 41Single Answer
Pascal’s law states that?
  1. APressure increases with temperature
  2. BPressure applied to a confined fluid is transmitted equally in all directions
  3. CPressure depends on height only
  4. DPressure is inversely proportional to volume
Question 42Single Answer
Hydraulic lift works on the principle of?
  1. APascal’s law
  2. BArchimedes’ principle
  3. CBernoulli’s theorem
  4. DNewton’s law
Question 43Single Answer
Archimedes’ principle deals with?
  1. ASurface tension
  2. BBuoyancy
  3. CElasticity
  4. DViscosity
Question 44Single Answer
The buoyant force on a body is equal to?
  1. AWeight of displaced fluid
  2. BVolume of fluid
  3. CDensity of fluid
  4. DPressure difference
Question 45Single Answer
A body floats when?
  1. AWeight less than buoyant force
  2. BWeight greater than buoyant force
  3. CWeight equals buoyant force
  4. DVolume equals density
Question 46Single Answer
Streamline flow is characterized by?
  1. AConstant velocity at a point
  2. BRandom motion
  3. CHigh turbulence
  4. DViscosity neglect
Question 47Single Answer
Turbulent flow occurs when?
  1. AVelocity is low
  2. BViscosity is zero
  3. CReynolds number exceeds critical value
  4. DDensity is low
Question 48Single Answer
The loss of energy due to viscosity in pipe flow is called?
  1. ATurbulence
  2. BHead loss
  3. CCapillarity
  4. DElastic loss
Question 49Single Answer
The streamline and equipotential lines are?
  1. AParallel
  2. BPerpendicular
  3. CRandom
  4. DCoincident
Question 50Single Answer
Dimensional formula of surface tension is?
  1. AM1T-2
  2. BM1L0T-1
  3. CM1L0T-3
  4. DM1L0T-2
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