Tata Steel JET Mechanical [Part 1] - 2025

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(1) Lang lay ropes offer more resistance to ______

Fatigue Failure
Abrasive Failure
Both 1 And 2.
None Of These

(2) What is Scuffing?

Surface Fatigue Failure
Lubrication Failure
Abrasive Failure
Fatigue Failure

(3) What is the S.I unit of kinematic viscosity?

M²/s
N-s /m²
M²/N-s
S/m²

(4) Friction ply used in multiple-ply belts is made of ------

Polyamide Strips
Magnetic Strips
Synthetic Strips
Polyester Cords

(5) Macaulay's method is used to determine ______

Strength
Hardness
Softness
Deflection

(6) Strain energy stored in a uniform bar is denoted as ______

σ²AL/ 2E
σ L/ 2AE
2AE/σ L
σ²L/ 2EA

(7) Which axial force is determined while analyzing a truss?

Compressive Force
Tensile Force
Both 1 And 2
None Of These

(8) What is the coefficient of restitution (e) for elastic impact?

E = 1
E < 0
E > 1
E = 0

(9) The redundant truss is a type of ___

Perfect Truss
Stable Truss
Imperfect Truss
Unstable Truss

(10) What is the SI unit of linear momentum?

N.m.sec
Kg.m/sec
Kg.m² / Sec
N.sec2