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1
GATE ME 1992
MCQ (Single Correct Answer)
+1
-0.3
Fatigue strength of a rod subjected to cyclic axial force is less than that of a rotating beam of the same dimensions subjected to steady lateral force because
A
axial stiffness is less than bending stiffness
B
of absence of centrifugal effects in the rod
C
the number of discontinuities vulnerable to fatigue are more in the rod
D
at a particular time the rod has only one type of stress whereas the beam has both the tensile and compressive stresses
2
GATE ME 1991
Fill in the Blanks
+1
-0
In a shaft with a transverse hole, as the hole to the shaft diameter ratio ___________ (increases / decreases), the torsional stress concentration factor__________ (increases/decreases)
3
GATE ME 1990
MCQ (Single Correct Answer)
+1
-0.3
The process of shot peening increases the fatigue life of steel springs mainly because it results in
A
surface hardening
B
increased stiffness of the material
C
structural changes in the material
D
residual compression at the surface
4
GATE ME 1989
MCQ (Single Correct Answer)
+1
-0.3
Stress concentration in a machine component of a ductile material is not so harmful as it is in a brittle material because
A
in ductile material local yielding may distribute stress concentration
B
ductile material has larger Young's materials.
C
Poisson's ratio is larger in ductile materials.
D
Modulus of rigidity is larger in ductile materials.
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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
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 Linear Programming Assignment Pert and Cpm Inventory Control Transportation Scheduling
Turbo Machinery
Turbo Machinery
Theory of Machines
Vibrations Gears and Gear Trains Flywheel Analysis of Plane Mechanisms
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Transform Theory 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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