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1
GATE ME 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
For steady flow of a viscous incompressible fluid through a circular pipe of constant diameter, the average velocity in the fully developed region is constant. Which one of the following statements about the average velocity in the developing region is TRUE?
A
It increases until the flow is fully developed.
B
It is constant and is equal to the average velocity in the fully developed region.
C
It decreases until the flow is fully developed.
D
It is constant but always lower than the average velocity in the fully developed region.
2
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Three parallel pipes connected at the two ends have flow-rates $$\,\,\,{Q_1},\,\,\,{Q_2},\,\,\,\,$$ and $${Q_3}$$ respectively, and the corresponding frictional head losses are $${h_{L1}},\,\,\,{h_{L2}},$$ and $${h_{L3}}$$ respectively. The correct expressions for total flow rate $$(Q)$$ and frictional head loss across the two ends $$\left( {{h_L}} \right)$$ are.
A
$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$
B
$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$
C
$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$
D
$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$
3
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Couette flow is characterized by
A
Steady, incompressible, laminar flow through a straight circular pipe
B
Fully developed turbulent flow through a straight circular pipe
C
Steady, incompressible, laminar flow between two fixed parallel plates
D
Steady, incompressible, laminar flow between one fixed plate and the other moving with a constant velocity
4
GATE ME 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider fully developed flow in a circular pipe with negligible entrance length effects. Assuming the mass flow rate, density and friction factor to be constant, if the length of the pipe is doubled and the diameter is halved, the head loss due to friction will increase by a factor of
A
$$4$$
B
$$16$$
C
$$32$$
D
$$64$$
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GATE ME Subjects
Engineering Mechanics
Engineering Mechanics Static and Dynamics
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
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
Heat Transfer
Conduction Fin Design and Transient Heat Conduction Convection Radiation Heat Exchangers
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Queuing Production Planning and Control Line Balancing Forecasting Linear Programming Assignment Pert and Cpm Inventory Control Transportation Scheduling
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Turbo Machinery
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
Fluid Mechanics
Fluid Properties Fluid Statics Boundary Layer Turbulent Flow Laminar Flow Fluid Dynamics Fluid Kinematics
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
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