Deformation of Solids

Q: When the stress changes length of a body, it is called:

(a) :  Shear stress
(b) :  Tensile Stress
(c) :  Volume Stress
(d) :  Any of these
(e) :  None of these
Answer:  Tensile Stress
Explanation:  

Q: A stress which decreases the length along one dimension is known as:

(a) :  Compressive stress
(b) :  Tensile Stress
(c) :  Linear stress
(d) :  Linear stress
(e) :  Both (B) and (C)
Answer:  Linear stress
Explanation:  

Q: When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

(a) :  Fission reaction
(b) :  Fusion reaction
(c) :  Polymerization reaction
(d) :  Any of these
(e) :  None of these
Answer:  Polymerization reaction
Explanation:  

Q: The semi conductors have conductivities, which:

(a) :  Are intermediate
(b) :  Range from 10 -6 to 10 -4 (Ωm) -1
(c) :  Both (A) and (B)
(d) :  10 -10 to 10 -20
(e) :  Both (A) and (D)
Answer:  Both (A) and (B)
Explanation:  

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