Fundamentals of Machine Design (3141907) MCQs

MCQs of Design Against Static Load

Showing 1 to 10 out of 38 Questions
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1.
When a body is subjected to direct tensile stress (σ), the maximum normal stress is equal to the direct tensile stress.
(a) Agree
(b) Disagree
Answer:

Option (a)

2.
The ratio of the ultimate stress to the design stress is known as
(a) elastic limit
(b) strain
(c) factor of safety
(d) bulk modulus
Answer:

Option (c)

3.
The factor of safety is always more than unity.
(a) Correct
(b) Incorrect
Answer:

Option (a)

4.
Maximum principal stress theory is applicable for
(a) ductile materials
(b) brittle materials
(c) elastic materials
(d) none of the above
Answer:

Option (b)

5.
Shear stress theory is applicable for
(a) ductile materials
(b) brittle materials
(c) elastic materials
(d) none of the above
Answer:

Option (a)

6.
Guest's theory of failure is applicable for following type of materials
(a) brittle
(b) ductile
(c) elastic
(d) plastic
Answer:

Option (b)

7.
Rankine's theory of failure is applicable for the following type of materials
(a) brittle
(b) ductile
(c) elastic
(d) plastic
Answer:

Option (a)

8.
Principle plane is a plane on which the shear stress is
(a) zero
(b) minimum
(c) maximum
(d) none of these
Answer:

Option (a)

9.
The maximum normal stress theory is used for
(a) brittle materials
(b) ductile materials
(c) plastic materials
(d) non-ferrous materials
Answer:

Option (a)

10.
According to the maximum shear stress theory, the maximum shear stress in the shaft is
(a) 12σ2+4τ2
(b) σ2+4τ2
(c) 12σ+σ2+4τ2
(d) σ+σ2+4τ2
Answer:

Option (a)

Showing 1 to 10 out of 38 Questions
1 2 3 4