GATE Prev Year : Engineering Materials Test-4

Attempt now to get your rank among 917 students!

Question 1

Magnetic particles testing is most likely to find subsurface discontinuities in:

• ASoft steels with high permeability
• BSoft steels with low permeability
• CHardened steels with low permeability
• DHardened steels with high permeability

Question 2

Elasticity of various materials is controlled by its

• AUltimate tensile stress
• BProof stress
• CStress at yield point
• DStress at elastic limit

Question 3

From the lists given below, choose the most appropriate set of heat treatment process and the corresponding process characteristics ______.

• AP-3 Q-1 R-5
• BP-4 Q-3 R-2
• CP-4 Q-1 R-2
• DP-1 Q-5 R-4

Question 4

It is seen that in a concentrated vertical load of 100 KN what will be the stress σ_z at point (r, θ, z) = (1, 20^o, 2).

• A6.833 KN/m²
• B7.733 KN/m²
• C8.233 KN/m²
• D3.433 KN/m²

Question 5

Which material has the highest electrical conductivity?

• ASilver
• BAluminium
• CIron
• DCopper

Question 6

The process of reheating the martensitic steel to reduce its brittleness without any significant loss in its hardness is

• Anormalising
• Bannealing
• Cquenching
• Dtempering

• 917 attempts
• 5 upvotes
• 54 comments