Machine Design MCQs | Page - 4

Dear candidates you will find MCQ questions of Machine Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

V

Vinay Kumar • 8.55K Points
Tutor III

Q. Fibrous fracture occurs in

(A) ductile material
(B) brittle material
(C) elastic material
(D) hard material
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. For applications involving high stresses in one direction only the following type of thread would be best suited

(A) ISO metric thread
(B) acme thread
(C) square thread
(D) buttress thread
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

(A) 0.4 times
(B) 0.6 times
(C) 0.7 times
(D) 0.8 times
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. For steel, the ultimate strength in shear as compared to ultimate strength in tension is

(A) same
(B) 43862
(C) 43891
(D) 43892
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. For tight leakage joints, following type of thread is best suited

(A) metric
(B) buttress
(C) square
(D) NPT (national pipe threads)
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. Form coefficient of spring is

(A) ratio of coil diameter to wire diameter
(B) load required to produce unit deflection
(C) its capability of storing energy
(D) concerned With strength of wire of spring
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. Gear box is used

(A) to produce torque
(B) for speed reduction
(C) to obtain variable speeds
(D) to increase efficiency of system
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. Guest's theory of failure is applicable for following type of materials

(A) brittle
(B) ductile
(C) elastic
(D) plastic
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. I.S. specifies following total number of grades of tolerances

(A) 18
(B) 16
(C) 20
(D) 22
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V

Vinay Kumar • 8.55K Points
Tutor III

Q. If a load W is applied instantaneously on a bar; then the stress induced in bar will

(A) be independent of ratio of mass of load W to mass of bar (y)
(B) increase with increase in y
(C) decrease with decrease in y
(D) depend on other considerations
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