GATE ME 2015 Set 3 | Convection Question 9 | Heat Transfer

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-0.3

The ratio of momentum diffusivity $$\left( \upsilon \right)$$ to thermal diffusivity $$\left( \alpha \right),$$ is called

Prandtl number

Nusselt number

Biot number

Lewis number

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

GATE ME 2015 Set 1

MCQ (Single Correct Answer)

-0.3

The Blasius equation related to boundary layer theory is a

third-order linear partial differential equation

third-order nonlinear partial differential equation

second-order nonlinear ordinary differential equation

third-order nonlinear ordinary differential equation

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GATE ME Subjects

Engineering Mechanics

Engineering Mechanics Static and Dynamics

Strength of Materials

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

Theory of Machines

Vibrations Gears and Gear Trains Flywheel Analysis of Plane Mechanisms

Engineering Mathematics

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

Machine Design

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

Fluid Mechanics

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

Turbo Machinery

Heat Transfer

Conduction Fin Design and Transient Heat Conduction Convection Radiation Heat Exchangers

Thermodynamics

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

Production Engineering

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

Industrial Engineering

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

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability