1
GATE CE 1991
MCQ (Single Correct Answer)
+1
-0.3
A cantilever beam of tubular section consists of 2 materials copper as outer cylinder and steel as inner cylinder. It is subjected to a temperature rise of $$20^\circ C$$ and $$\alpha_{copper}\;>\;\alpha_{steel}$$ the stresses developed in the tubes will be
A
compression in steel and tension in copper.
B
compression in copper and tension in steel.
C
No stress in both.
D
Tension in both the materials.
2
GATE CE 1991
MCQ (Single Correct Answer)
+1
-0.3
In a linear elastic structural element
A
Stiffness is directly proportional to flexibility.
B
Stiffness is inversely proportional to flexibility.
C
Stiffness is equal to flexibility.
D
Stiffness and flexibility are not related.
3
GATE CE 1990
MCQ (Single Correct Answer)
+1
-0.3
The principle of superposition is made use of in structural computations when:
A
The geometry of the structure changes by a finite amount during the application of the loads.
B
The changes in the geometry of the structure during the application if the loads is too small and the strain in the structure are directly proportional to the corresponding stresses.
C
The strains in the structure are not directly proportional to the corresponding stresses, even though the effect of changes in geometry can be neglected.
D
None of the above conditions are met.
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