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GATE 2019 Strength of Materials Day 7 Quiz
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Question 1
The compression test is carried on………………….. material:
Question 2
Statement 1: to test a brittle material, maximum principle stress theory is suitable.
Statement 2: Maximum Principle stress theory is not good for mild steel body.
Statement 2: Maximum Principle stress theory is not good for mild steel body.
Question 3
A Particular section of steel shaft is subjected to maximum bending stress of 160 MPa and a maximum shear stress equal to 60 MPa. The yield point in tension of the material is 400 MPa. If maximum principal stress theory is used, the FOS will be _______.
Question 4
A 200 mm long, stress free rod at room temperature is held between two immovable rigid walls. The temperature of the rod is uniformly raised by 250 °C. If the Young's modulus and coefficient of thermal expansion are 200 GPa and , respectively, the magnitude of the longitudinal stress (in MPa) developed in the rod
is _______
Question 5
What would be the equivalent stress (MPa) in simple tension according to maximum principal strain theory. If At a point in a structure there are two mutually perpendicular tensile stresses of 600 MPa and 200MPa at failure. poisson’s ratio is 0.25.
Question 6
Match list-I with List-II and select the correct answer using the codes given below the list:
List –I
(Material properties)
A) Ductility
B) Toughness
C) Endurance limit
D) Resistance to penetration
List-II
(Test to determine properties)
1) Impact test
2) Fatigue test
3) Tension test
4) Hardness test
List –I
(Material properties)
A) Ductility
B) Toughness
C) Endurance limit
D) Resistance to penetration
List-II
(Test to determine properties)
1) Impact test
2) Fatigue test
3) Tension test
4) Hardness test
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Jul 5ESE & GATE CE