Mechanical Engineering Questions And Answers :: Machine Design: part1



Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

1.The notch angle of the Izod impact test specimen is

10�
20�
30�
45�
60�.

2.Stress concentration is caused due to

variation in properties of material from point to point in a member
pitting at points or areas at which loads on a member are applied
abrupt change of section
all of the above
none of the above.

3.Resilience of a material is important, when it is subjected to

combined loading
fatigue
thermal stresses
wear and tear
shock loading.

4.Pick up wrong statement. Fatigue strength can be increased by

cold working
shot peening
grinding and lapping surface
hot working
using gradual changes of section.

5.The property of a material which enables it to resist fracture due to high impact loads is known as

elasticity
endurance
strength
toughness
resilience.

More Machine Design QUESTIONS AND ANSWERS available in next pages

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