36 + Mcqs in Materials Science Page 1 McqOptions

1.	Ionization energy decreases down the group. It is the energy required by an isolated gaseous atom to form an anion.
A.	True
B.	False
Answer» C.

Discussion

2.	Radon is the sixth member of group 18 of the modern periodic table. Unlike other members of this group, Radon:
A.	is solid near room temperature
B.	is radioactive
C.	possess high chemical reactivity
D.	all of the mentioned
Answer» C. possess high chemical reactivity

Discussion

3.	Moving down a group, which of the following properties generally diminishes?
A.	Electronegativity
B.	Metallic character
C.	Atomic radius
D.	Molar mass
Answer» B. Metallic character

Discussion

4.	Uranium and Thorium are two important elements in the nuclear power industry. In which block of the modern periodic table are they placed?
A.	s-block
B.	p-block
C.	d-block
D.	f-block
Answer» E.

Discussion

5.	d-block elements generally show multiple oxidation states. An exception to this is:
A.	Zinc
B.	Mercury
C.	Copper
D.	None of the mentioned
Answer» E.

Discussion

6.	There are seventeen non-metals in the periodic table. Unlike metals in the same period, they have higher:
A.	Atomic number
B.	Atomic size
C.	Electropositivity
D.	All of the mentioned
Answer» B. Atomic size

Discussion

7.	Temporary IUPAC systematic symbol for the synthetic element 117 is:
A.	Uuh
B.	Uns
C.	Uus
D.	Une
Answer» D. Une

Discussion

8.	How many periods are there in a modern periodic table?
A.	5
B.	6
C.	7
D.	8
Answer» D. 8

Discussion

9.	As we move down a group, electronegativity of elements generally:
A.	Increases
B.	Decreases
C.	Increases and then decreases
D.	Decreases and then increases
Answer» B. Decreases

Discussion

10.	Elements in the same column of the periodic table have:
A.	Similar valence shell electron configuration
B.	Same value of highest principal quantum number
C.	Same number of nucleons
D.	All of the mentioned
Answer» B. Same value of highest principal quantum number

Discussion

11.	Avogadro’s number of water molecules occupy 22.4 liters of space at 273 K
A.	True
B.	False
Answer» C.

Discussion

12.	Species with the same number of neutrons but the different number of protons are called:
A.	Isotones
B.	Isotopes
C.	Isomers
D.	Isobars
Answer» B. Isotopes

Discussion

13.	Avogadro’s number of water molecules occupy 22.4 liters of space at 273 K.
A.	True
B.	False
Answer» C.

Discussion

14.	One unified atomic mass unit equals:
A.	1/12 of molar mass of Carbon
B.	1/16 of atomic mass of Oxygen
C.	molecular mass of Hydrogen
D.	all of the mentioned
Answer» C. molecular mass of Hydrogen

Discussion

15.	Which if the following is not an SI unit?
A.	Kilogram
B.	Mole
C.	Atomic Mass Unit
D.	Coulomb
Answer» D. Coulomb

Discussion

16.	Which of the following is not a pure form of matter?
A.	Element
B.	Compound
C.	Solution
D.	Both Compound and Solution
Answer» D. Both Compound and Solution

Discussion

17.	Which of the following has the least number of atoms?
A.	One gram of Hydrogen gas
B.	One gram of Helium gas
C.	One gram-mole of Oxygen gas
D.	One gram-mole of Chlorine gas
Answer» C. One gram-mole of Oxygen gas

Discussion

18.	Oxygen gas is denser than Carbon Dioxide gas?
A.	True
B.	False
Answer» C.

Discussion

19.	Atomic number of a species is the number of:
A.	Neutrons
B.	Protons
C.	Valence electrons
D.	Nucleons
Answer» C. Valence electrons

Discussion

20.	Species with the same number of neutrons but the different number of protons are called:
A.	Isotones
B.	Isotopes
C.	Isomers
D.	Isobars
Answer» B. Isotopes

Discussion

21.	Calcium is an isobar of Argon. They differ in:
A.	Atomic weight
B.	Number of nucleons
C.	Number of neutrons
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

22.	Various isotopes of a given element have same:
A.	Number of protons
B.	Number of neutrons
C.	Molar mass
D.	Thermodynamic stability
Answer» B. Number of neutrons

Discussion

23.	Which of the following is true for polymers?
A.	They have very high molecular mass
B.	They do not have a linear stress-strain curve
C.	They have high strength to mass ratio
D.	All of the mentioned
Answer» E.

Discussion

24.	Which of the following cannot be used as bio-materials?
A.	Metals
B.	Ceramics
C.	Polymers
D.	None of the mentioned
Answer» E.

Discussion

25.	Ceramics make excellent refractory materials. A material is said to be refractory if it:
A.	resists the flow of electric current
B.	has high refractive index
C.	retains its strength at high temperatures
D.	all of the mentioned
Answer» D. all of the mentioned

Discussion

26.	GFRP is an important composite. It stands for
A.	Gelatin Fibre Reinforced Polymer
B.	Graphite Fibre Reinforced Polymer
C.	Germanium Fibre Reinforced Polymer
D.	Glass Fibre Reinforced Polymer
Answer» E.

Discussion

27.	Steels mainly contain iron and carbon. Under which of the following categories do they belong?
A.	Metallic Solid
B.	Polymer
C.	Composites
D.	Ceramics
Answer» B. Polymer

Discussion

28.	In terms of which of the following properties, metals are better than ceramics?
A.	Hardness
B.	Ductility
C.	Toughness
D.	Yield Strength
Answer» C. Toughness

Discussion

29.	The phase above eutectoid temperature for carbon steels is known as _______
A.	Cementite
B.	Ferrite
C.	Pearlite
D.	Austentite
Answer» E.

Discussion

30.	What is the eutectoid structure of Iron?
A.	Cementite
B.	Ferrite
C.	Pearlite
D.	Austentite
Answer» D. Austentite

Discussion

31.	Any composition left and right of P will generate ___________
A.	Excess of liquid and α
B.	Excess of α and liquid
C.	Excess of liquid and β
D.	Excess of β and liquid
Answer» C. Excess of liquid and β

Discussion

32.	At what temperature, all liquid and αwill convert to β?
A.	Eutectic temperature
B.	Peritectic temperature
C.	Eutectoid temperature
D.	Peritectoid temperature
Answer» C. Eutectoid temperature

Discussion

33.	Which phase will crystallize first just below the liquidus line?
A.	α phase
B.	β phase
C.	(L+α) phase
D.	(L+β) phase
Answer» B. β phase

Discussion

34.	A first solid phase results in a second solid plus another third solid phase upon heating during __________ reaction.
A.	Eutectoid
B.	Peritectic
C.	Eutectic
D.	Peritectoid
Answer» E.

Discussion

35.	A first solid phase results in a second solid phase another third solid phase on cooling during __________ reaction.
A.	Eutectoid
B.	Peritectic
C.	Eutectic
D.	Peritectoid
Answer» B. Peritectic

Discussion

36.	On heating, one solid phase results in another solid phase and a liquid phase during __________ reaction.
A.	Eutectoid
B.	Peritectic
C.	Eutectic
D.	Peritectoid
Answer» C. Eutectic

Discussion

Explore topic-wise MCQs in ENGINEERING SERVICES EXAMINATION (ESE).

Ionization&nbsp;energy&nbsp;decreases&nbsp;down&nbsp;the&nbsp;group.&nbsp;It&nbsp;is&nbsp;the&nbsp;energy&nbsp;required&nbsp;by&nbsp;an&nbsp;isolated&nbsp;gaseous&nbsp;atom&nbsp;to&nbsp;form&nbsp;an&nbsp;anion.

&nbsp;Radon&nbsp;is&nbsp;the&nbsp;sixth&nbsp;member&nbsp;of&nbsp;group&nbsp;18&nbsp;of&nbsp;the&nbsp;modern&nbsp;periodic&nbsp;table.&nbsp;Unlike&nbsp;other&nbsp;members&nbsp;of&nbsp;this&nbsp;group,&nbsp;Radon:

Moving&nbsp;down&nbsp;a&nbsp;group,&nbsp;which&nbsp;of&nbsp;the&nbsp;following&nbsp;properties&nbsp;generally&nbsp;diminishes?

Uranium&nbsp;and&nbsp;Thorium&nbsp;are&nbsp;two&nbsp;important&nbsp;elements&nbsp;in&nbsp;the&nbsp;nuclear&nbsp;power&nbsp;industry.&nbsp;In&nbsp;which&nbsp;block&nbsp;of&nbsp;the&nbsp;modern&nbsp;periodic&nbsp;table&nbsp;are&nbsp;they&nbsp;placed?

d-block&nbsp;elements&nbsp;generally&nbsp;show&nbsp;multiple&nbsp;oxidation&nbsp;states.&nbsp;An&nbsp;exception&nbsp;to&nbsp;this&nbsp;is:

There&nbsp;are&nbsp;seventeen&nbsp;non-metals&nbsp;in&nbsp;the&nbsp;periodic&nbsp;table.&nbsp;Unlike&nbsp;metals&nbsp;in&nbsp;the&nbsp;same&nbsp;period,&nbsp;they&nbsp;have&nbsp;higher:

Temporary&nbsp;IUPAC&nbsp;systematic&nbsp;symbol&nbsp;for&nbsp;the&nbsp;synthetic&nbsp;element&nbsp;117&nbsp;is:

How&nbsp;many&nbsp;periods&nbsp;are&nbsp;there&nbsp;in&nbsp;a&nbsp;modern&nbsp;periodic&nbsp;table?

As&nbsp;we&nbsp;move&nbsp;down&nbsp;a&nbsp;group,&nbsp;electronegativity&nbsp;of&nbsp;elements&nbsp;generally:

Elements&nbsp;in&nbsp;the&nbsp;same&nbsp;column&nbsp;of&nbsp;the&nbsp;periodic&nbsp;table&nbsp;have:

Avogadro&rsquo;s&nbsp;number&nbsp;of&nbsp;water&nbsp;molecules&nbsp;occupy&nbsp;22.4&nbsp;liters&nbsp;of&nbsp;space&nbsp;at&nbsp;273&nbsp;K

Species&nbsp;with&nbsp;the&nbsp;same&nbsp;number&nbsp;of&nbsp;neutrons&nbsp;but&nbsp;the&nbsp;different&nbsp;number&nbsp;of&nbsp;protons&nbsp;are&nbsp;called:

Avogadro&rsquo;s&nbsp;number&nbsp;of&nbsp;water&nbsp;molecules&nbsp;occupy&nbsp;22.4&nbsp;liters&nbsp;of&nbsp;space&nbsp;at&nbsp;273&nbsp;K.

One&nbsp;unified&nbsp;atomic&nbsp;mass&nbsp;unit&nbsp;equals:

Which&nbsp;if&nbsp;the&nbsp;following&nbsp;is&nbsp;not&nbsp;an&nbsp;SI&nbsp;unit?

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;is&nbsp;not&nbsp;a&nbsp;pure&nbsp;form&nbsp;of&nbsp;matter?

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;has&nbsp;the&nbsp;least&nbsp;number&nbsp;of&nbsp;atoms?

Oxygen&nbsp;gas&nbsp;is&nbsp;denser&nbsp;than&nbsp;Carbon&nbsp;Dioxide&nbsp;gas?

Atomic&nbsp;number&nbsp;of&nbsp;a&nbsp;species&nbsp;is&nbsp;the&nbsp;number&nbsp;of:

&nbsp;Species&nbsp;with&nbsp;the&nbsp;same&nbsp;number&nbsp;of&nbsp;neutrons&nbsp;but&nbsp;the&nbsp;different&nbsp;number&nbsp;of&nbsp;protons&nbsp;are&nbsp;called:

Calcium&nbsp;is&nbsp;an&nbsp;isobar&nbsp;of&nbsp;Argon.&nbsp;They&nbsp;differ&nbsp;in:

Various&nbsp;isotopes&nbsp;of&nbsp;a&nbsp;given&nbsp;element&nbsp;have&nbsp;same:

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;is&nbsp;true&nbsp;for&nbsp;polymers?

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;cannot&nbsp;be&nbsp;used&nbsp;as&nbsp;bio-materials?

Ceramics&nbsp;make&nbsp;excellent&nbsp;refractory&nbsp;materials.&nbsp;A&nbsp;material&nbsp;is&nbsp;said&nbsp;to&nbsp;be&nbsp;refractory&nbsp;if&nbsp;it:

GFRP&nbsp;is&nbsp;an&nbsp;important&nbsp;composite.&nbsp;It&nbsp;stands&nbsp;for

Steels&nbsp;mainly&nbsp;contain&nbsp;iron&nbsp;and&nbsp;carbon.&nbsp;Under&nbsp;which&nbsp;of&nbsp;the&nbsp;following&nbsp;categories&nbsp;do&nbsp;they&nbsp;belong?

&nbsp;In&nbsp;terms&nbsp;of&nbsp;which&nbsp;of&nbsp;the&nbsp;following&nbsp;properties,&nbsp;metals&nbsp;are&nbsp;better&nbsp;than&nbsp;ceramics?

The&nbsp;phase&nbsp;above&nbsp;eutectoid&nbsp;temperature&nbsp;for&nbsp;carbon&nbsp;steels&nbsp;is&nbsp;known&nbsp;as&nbsp;_______

What&nbsp;is&nbsp;the&nbsp;eutectoid&nbsp;structure&nbsp;of&nbsp;Iron?

Any&nbsp;composition&nbsp;left&nbsp;and&nbsp;right&nbsp;of&nbsp;P&nbsp;will&nbsp;generate&nbsp;___________

At&nbsp;what&nbsp;temperature,&nbsp;all&nbsp;liquid&nbsp;and&nbsp;&alpha;will&nbsp;convert&nbsp;to&nbsp;&beta;?

Which&nbsp;phase&nbsp;will&nbsp;crystallize&nbsp;first&nbsp;just&nbsp;below&nbsp;the&nbsp;liquidus&nbsp;line?

A&nbsp;first&nbsp;solid&nbsp;phase&nbsp;results&nbsp;in&nbsp;a&nbsp;second&nbsp;solid&nbsp;plus&nbsp;another&nbsp;third&nbsp;solid&nbsp;phase&nbsp;upon&nbsp;heating&nbsp;during&nbsp;__________&nbsp;reaction.

A&nbsp;first&nbsp;solid&nbsp;phase&nbsp;results&nbsp;in&nbsp;a&nbsp;second&nbsp;solid&nbsp;phase&nbsp;another&nbsp;third&nbsp;solid&nbsp;phase&nbsp;on&nbsp;cooling&nbsp;during&nbsp;__________&nbsp;reaction.

On&nbsp;heating,&nbsp;one&nbsp;solid&nbsp;phase&nbsp;results&nbsp;in&nbsp;another&nbsp;solid&nbsp;phase&nbsp;and&nbsp;a&nbsp;liquid&nbsp;phase&nbsp;during&nbsp;__________&nbsp;reaction.

Ionization energy decreases down the group. It is the energy required by an isolated gaseous atom to form an anion.

Radon is the sixth member of group 18 of the modern periodic table. Unlike other members of this group, Radon:

Moving down a group, which of the following properties generally diminishes?

Uranium and Thorium are two important elements in the nuclear power industry. In which block of the modern periodic table are they placed?

d-block elements generally show multiple oxidation states. An exception to this is:

There are seventeen non-metals in the periodic table. Unlike metals in the same period, they have higher:

Temporary IUPAC systematic symbol for the synthetic element 117 is:

How many periods are there in a modern periodic table?

As we move down a group, electronegativity of elements generally:

Elements in the same column of the periodic table have:

Avogadro’s number of water molecules occupy 22.4 liters of space at 273 K

Species with the same number of neutrons but the different number of protons are called:

Avogadro’s number of water molecules occupy 22.4 liters of space at 273 K.

One unified atomic mass unit equals:

Which if the following is not an SI unit?

Which of the following is not a pure form of matter?

Which of the following has the least number of atoms?

Oxygen gas is denser than Carbon Dioxide gas?

Atomic number of a species is the number of:

Species with the same number of neutrons but the different number of protons are called:

Calcium is an isobar of Argon. They differ in:

Various isotopes of a given element have same:

Which of the following is true for polymers?

Which of the following cannot be used as bio-materials?

Ceramics make excellent refractory materials. A material is said to be refractory if it:

GFRP is an important composite. It stands for

Steels mainly contain iron and carbon. Under which of the following categories do they belong?

In terms of which of the following properties, metals are better than ceramics?

The phase above eutectoid temperature for carbon steels is known as _______

What is the eutectoid structure of Iron?

Any composition left and right of P will generate ___________

At what temperature, all liquid and αwill convert to β?

Which phase will crystallize first just below the liquidus line?

A first solid phase results in a second solid plus another third solid phase upon heating during __________ reaction.

A first solid phase results in a second solid phase another third solid phase on cooling during __________ reaction.

On heating, one solid phase results in another solid phase and a liquid phase during __________ reaction.