1
GATE ME 2020 Set 1
MCQ (Single Correct Answer)
+1
-0.33
The stress state at a point in a material under plane stress condition is equi-biaxial tension with a magnitude of 10 MPa. If one unit on the σ - τ plane is 1 MPa, the Mohr’s circle representation of the state-of-stress is given by
A
a circle with a radius equal to principal stress and its center at the origin of the σ - τ plane
B
a point on the σ axis at a distance of 10 units from origin
C
a circle with a radius of 10 units on the σ - τ plane
D
a point on the τ axis at a distance of 10 units from the origin
2
GATE ME 2020 Set 1
MCQ (Single Correct Answer)
+1
-0.33
A helical gear with 20° pressure angle and 30° helix angle mounted at the midspan of a shaft that is supported between two bearings at the ends. The nature of the stresses induced in the shaft is
A
normal stresses due to bending only
B
normal stress due to bending in one plane and axial loading; shear stress due to torsion
C
Normal stress due to bending in two planes and axial loading; shear stress due to torsion
D
normal stress due to bending in two planes; shear stress due to torsion
3
GATE ME 2020 Set 1
MCQ (Single Correct Answer)
+1
-0.33
Change Language

Match the following.

Heat treatment

Effect

P:

Tempering

1.

Strengthening

Q:

Quenching

2.

Toughening

R:

Annealing

3.

Hardening

S:

Normalizing

4.

Softening

A
P-2, Q-3, R-4, S-1
B
P-1, Q-1, R-3, S-2
C
P-3, Q-3, R-1, S-3
D
P-4, Q-3, R-2, S-1
4
GATE ME 2020 Set 1
MCQ (Single Correct Answer)
+1
-0.33
Change Language
Joule-Thompson coefficient for an ideal gas is
A
Higher than zero
B
Less than zero
C
Zero
D
1
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