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Engineering-materials Questions Set 50:

Quiz Mode

The atomic packing factor for material with body-centered cubic is

Solution:

How does the hardness of steel greatly improve?

Annealing

Cyaniding

Normalizing

Tempering

Solution:

Which of the following elements is an austenite stabilizer?

Chromium

Tungsten

Nickel

Molybdenum

Solution:

Invar is used for measuring tapes primarily due to its

non-metallic properties

high nickel content

low coefficient of thermal expansion

hardenability

Solution:

In steady-state diffusion, which of the following remains unchanged with time?

Concentration at source

Concentration at sink

Concentration profile

All of the above

Solution:

What is the value of 1 unified atomic mass unit?

2/24 of the atomic mass of carbon

1/16 of the atomic mass of oxygen

1/2 of the molecular mass of hydrogen

All of the above

Solution:

A reaction in which a liquid and a solid on cooling get converted into another solid is known as

eutectoid reaction

eutectic reaction

peritectic reaction

peritectoid reaction

Solution:

The purpose of the Jominy end-quench test is to determine

the recrystallization temperature of steel

the glass transition temperature of a material

the hardenability of steel

the hardness of steel

Solution:

The iron-carbon diagram and the TTT curves are determined under

equilibrium and non-equilibrium conditions, respectively

non-equilibrium and equilibrium conditions, respectively

equilibrium conditions for both

non-equilibrium conditions for both

Solution:

Some high-speed steels have cobalt (Co) added to them in amounts ranging from 2 to 15%, since this element improves the

cutting efficiency, especially at high temperature

depth hardening ability of the HSS tool

red hardness of the HSS tool

grain structure of the HSS tool

Engineering-materials Questions Set 50:

The atomic packing factor for material with body-centered cubic is

Solution:

How does the hardness of steel greatly improve?

Solution:

Which of the following elements is an austenite stabilizer?

Solution:

Invar is used for measuring tapes primarily due to its

Solution:

In steady-state diffusion, which of the following remains unchanged with time?

Solution:

What is the value of 1 unified atomic mass unit?

Solution:

A reaction in which a liquid and a solid on cooling get converted into another solid is known as

Solution:

The purpose of the Jominy end-quench test is to determine

Solution:

The iron-carbon diagram and the TTT curves are determined under

Solution:

Some high-speed steels have cobalt (Co) added to them in amounts ranging from 2 to 15%, since this element improves the

Solution:

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