Tech Quiz - Round 1

What we call the resistance of a material against any external force?

• Malleability

• Stiffness

• Hardness

• Strength

What is the Iron-Carbon phase diagram?

• Unary phase diagram

• Binary phase diagram

• Tertiary phase diagram

• Ternary phase diagram

Which of the following material has the carbon varying from 2.1 to 4.3%?

• Mild steel

• Dead steel

• Cast iron

• Medium carbon steel

If two equal vector forces are mutually perpendicular, then the resultant force is acting at which angle as compared to one of the vector?

• 90°

• 0°

• 45°

• 180°

What if we multiply a scalar to the unit vector?

• The magnitude will change accordingly

• The direction will change accordingly

• The direction will change by a factor of the square root of the scalar

• The magnitude will not change accordingly

In a stationary fluid, how does the local pressure of the liquid vary?

• In the horizontal direction, only

• With depth only

• Neither with depth nor along the horizontal direction

• Both with depth and along the horizontal direction

What type of flow can be taken for granted in a pipe of a uniform cross-section?

• Turbulent

• Steady

• Laminar

• Uniform

Which one of the following statements is true regarding pressure?

• The pressure is a vector quantity

• The pressure is a scalar quantity

• The pressure is a vector quantity only when the area is infinitesimally small

• The pressure is a scalar quantity only when the area is infinitesimally small

Which light is deviated more by a prism?

• Red

• Blue

• Orange

• Yellow

The invariant reaction involving a liquid phase decomposing into two different solids on cooling is known as _____

• Eutectic point

• Eutectoid point

• Peritectoid point

• Peritectic point