Materials Science - TRB Physics Study Materials

SI NO.	QUESTIONS	ANSWERS
1.	Atoms or molecules are regularly arranged that solids are?	Crystalline
2.	Diamond, aluminum, polonium, copper, nickel are the examples are?	Crystalline solids
3.	Change in liquid phase or gaseous phase to solid to called as?	Crystallization+
4.	Mostly point imperfection may occurs due to the presence of?	Impurity atom
5.	Missing of atom or atoms in an atomic site is known as?	Vacancy
6.	The extra plane of atoms lying above the slip plane are called?	Positive edge dislocation
7.	This type of impurity may stay normally unfilled volume is known as?	Interstitial impurity
8.	Frankel vacancies are produced when the crystal is exposed to a high?	Radiation
9.	Slip is caused due to the motion of?	Screw dislocation
10.	Vander waals bond and hydrogen bond are the example for?	Secondary bond
11.	The example for ionic crystal is?	Nacl
12.	Vander waals bond are much weaker than	Ionic and covalent bonds
13.	Which is correct?	Covalent – ionic – metallic – hydrogen – van der waals
14.	Covalent bond is a ?	Strong bond
15.	Homogeneous mixture of two or more metals or a metal and a non-metal is called?	An alloy
16.	Angle made by the inclined plane is called?	Shear strain
17.	Hydrostatic pressure is the stress acting equally from?	All directions
18.	Force/area is known as?	Stress
19.	Ceramics are the compounds of?	Metals and non-metals
20	The property of the material which enables it to be twisted, bent or stretched, under a high stress before rupture is known as?	Toughness
21	Glasses are generally called as?	Super cooled liquids
22	I.C. engines, boiler and turbines using the principle of ?	Creep
23	High silica glass contains?	96% silica
24	Bi product is not obtained in?	Addition polymerization
25	The combination of bronze is?	Cu 90% sn 10%