GATE ME 2022 Set 2 | Convection Question 5 | Heat Transfer

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GATE ME 2022 Set 2

MCQ (Single Correct Answer)

-0.33

Which of the following non-dimensional terms is an estimate of Nusselt number?

Ratio of internal thermal resistance of a solid to the boundary layer thermal resistance

Ratio of the rate at which internal energy is advected to the rate of conduction heat transfer

Non-dimensional temperature gradient

Non-dimensional velocity gradient multiplied by Prandtl number

GATE ME 2016 Set 3

MCQ (Single Correct Answer)

-0.3

Grashof number signifies the ratio of

inertia force to viscous force

buoyancy force to viscous force

buoyancy force to inertia force

inertial force to surface tension force

GATE ME 2015 Set 2

MCQ (Single Correct Answer)

-0.3

In the laminar flow of air $$(Pr=0.7)$$ over a heated plate, if $$\delta $$ and $${\delta _T}$$ denote, respectively the hydrodynamic and thermal boundary layer thickness, then

$$\delta = {\delta _t}$$

$$\delta > {\delta _t}$$

$$\delta < {\delta _t}$$

$$\delta = 0$$ but $${\delta _t} \ne 0$$

GATE ME 2015 Set 1

MCQ (Single Correct Answer)

-0.3

For flow of viscous fluid over a flat plate, if the fluid temperature is the same as the plate temperature, the thermal boundary layer is

thinner than the velocity boundary layer

thicker than the velocity boundary layer

of the same thickness as the velocity boundary layer

not formed at all

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GATE ME Subjects

Engineering Mechanics

Engineering Mechanics Static and Dynamics

Strength of Materials

Springs Simple Stress and Strain Complex Stresses Pure Bending Moment of Inertia Shear Force and Bending Moment Stresses In Beams Deflection of Beams Columns and Struts Torsion Strain Energy Method Thin Cylinders

Theory of Machines

Analysis of Plane Mechanisms Gears and Gear Trains Vibrations Flywheel

Engineering Mathematics

Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Transform Theory Numerical Methods

Machine Design

Bolted Riveted and Welded Joints Design For Static Loading Design of Bearings Design of Brakes and Clutches Design of Spur Gears Fatigue Strength

Fluid Mechanics

Fluid Properties Fluid Statics Boundary Layer Turbulent Flow Laminar Flow Fluid Dynamics Fluid Kinematics

Turbo Machinery

Heat Transfer

Conduction Fin Design and Transient Heat Conduction Convection Radiation Heat Exchangers

Thermodynamics

Properties of Pure Substances Basic Concepts and Zeroth Law First Law of Thermodynamics Calculation of Work and Heat Entropy and Irreversibility Rankine Cycle Availability Second Law of Thermodynamics

Production Engineering

Sheet Metal Forming Processes Metal Cutting Welding Process Metal Forming Casting Advance Machine Tools Machining Metrology and Inspection

Industrial Engineering

Queuing Production Planning and Control Line Balancing Forecasting Pert and Cpm Inventory Control Transportation Scheduling Linear Programming Assignment

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability