1
GATE ME 1993
MCQ (Single Correct Answer)
+1
-0.3
The yield strength of a steel shaft is twice its endurance limit. Which of the following torque fluctuations represent the most critical situation according to Soderberg criterion?
A
$$-T$$ to $$+T$$
B
$$-T/2$$ to $$+T$$
C
$$0$$ to $$+T$$
D
$$+T/2$$ to $$+T$$
2
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
3
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)
4
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
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12