MCQ in Engineering Materials Part 5 | ECE Board Exam

This is the Multiples Choice Questions in Engineering Materials Part 5 of the Series as one of the General Engineering and Applied Sciences (GEAS) topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including past Board Questions in General Engineering and Applied Sciences (GEAS) field.

Continue Practice Exam Test Questions Part 5 of the Series

Choose the letter of the best answer in each questions.

201. The property of metals that allows them to be drawn into thin wires beyond their elastic limit without being ruptured is called

A. ductility

B. malleability

C. elasticity

D. hardness

202. Interaction between the surface of two closely adjacent bodies which causes them to cling together is known as

A. Friction

B. Cohesion

C. Adhesion

D. Viscosity

203. Solids which break above the elastic limit are called

A. Brittle

B. Ductile

C. Plastic

D. Malleable

204. The property of some elementary particles that causes them to exert force on one another I known as

A. Potential difference

B. Charge

C. Specific change

D. Nucleon interaction

205. The property which permits the flow of current under the action of a potential difference is called

A. Resistance

B. Permeance

C. Impedence

D. Conductance

206. When a body is resistant to heat, it is called

A. Thermoscopic

B. Thermotropic

C. Thermoduric

D. Thermoplastic

207. The property of fluids by virtue of which they offer resistance to flow is known as

A. Gummosity

B. Glutinosity

C. Viscidity

D. Viscosity

208. The tendency of a body to return to its original size or shape after having been deformed is called

A. Elastance

B. Elasticity

C. Elastivity

D. Anelastivity

209. The emission of light by a material because of its high temperature is known as

A. Incandescence

B. Luminescence

C. Scintillation

D. Phosphorescence

210. Which of the following statements is correct concerning the passage of white light into a glass prism?

A. The violet color travels faster than the red color

B. The violet color travels slower than the red color

C. All the colors of white light travels the same speed

D. Greater the wavelength, slower the speed of color

211. The property by virtue of which a body resists any attempt to change its state of rest or motion is called

A. Torpidity

B. Passivity

C. Inactivity

D. Inertia

212. The property of an isolated conductor to store electric charge is

A. Capacitance

B. Conductance

C. Permeability

D. Accumulation

213. If the properties of a body are the same in all directions, it is called

A. Isodynamic

B. Isotropic

C. Isogonic

D. Isotopic

214. The property of an object that determines the direction of heat flow when in contact with another object is called

A. Calidity

B. Pyxeria

C. Caloric

D. Temperature

215. The rate of flow of thermal energy through a material in the presence of a temperature gradient is called

A. Thermal capacity

B. Thermal conductivity

C. Thermal radiation

D. Thermal convection

216. The property of some crystals of absorbing light difference extents, thereby giving to the crystals different colors according to the direction of the incident light is known as

A. dichroism

B. dichromatism

C. diastrophism

D. chromaticity

217. Emission of radiations from a substance during illumination by radiations of higher frequency is called

A. illuminance

B. fluorescence

C. radioluminescence

D. incandescence

218. If a materials is feebly repelled by a magnet it is

A. diamagnetic

B. paramagnetic

C. ferromagnetic

D. ferromagnetic

219. The progressive decrease of a property as a result of repeated stress is called

A. debility

B. rigidity

C. elastic deformation

D. fatigue

220. Property of some pure metals and their alloys at extremely low temperatures of having negligible to the flow of an electric current is called

A. supercharging

B. supercooling

C. superfluidity

D. superconductivity

221. What is the scientific study of the properties and behavior of materials?

a. Physics

b. Chemistry

c. Materials science

d. Biology

222. What is the most abundant element in the Earth’s crust?

a. Oxygen

b. Silicon

c. Carbon

d. Hydrogen

223. What is the process of converting a material from a solid to a liquid state?

a. Melting

b. Freezing

c. Sublimation

d. Condensation

224. Which of the following materials has the highest melting point?

a. Aluminum

b. Copper

c. Platinum

d. Silver

225. What is the process of coating a material with a thin layer of another material?

a. Coating

b. Painting

c. Plating

d. Doping

226. Which of the following materials is an insulator?

a. Copper

b. Aluminum

c. Glass

d. Silver

227. Which of the following materials is a semiconductor?

a. Copper

b. Aluminum

c. Silicon

d. Gold

228. What is the process of heating a material to a high temperature and then cooling it quickly to make it harder and stronger?

a. Tempering

b. Quenching

c. Annealing

d. Forging

229. What is the process of removing impurities from a metal by heating and then cooling it slowly?

a. Tempering

b. Quenching

c. Annealing

d. Forging

230. Which type of bond is formed when two atoms share electrons?

a. Ionic

b. Covalent

c. Metallic

d. Van der Waals

231. What is the process of changing the properties of a material by subjecting it to mechanical deformation?

a. Heat treatment

b. Annealing

c. Forging

d. Plastic deformation

232. Which of the following materials is a superconductor?

a. Lead

b. Mercury

c. Niobium

d. All of these

233. What is the process of combining two or more materials to produce a new material with improved properties?

a. Alloying

b. Compositing

c. Bonding

d. Laminating

234. Which of the following materials is a ferromagnetic material?

a. Copper

b. Aluminum

c. Iron

d. Silver

235. What is the process of removing unwanted materials from a metal by passing an electrical current through it?

a. Electroplating

b. Electrolysis

c. Electroforming

d. Electrophoresis

236. Which of the following materials is a thermoplastic?

a. Polyethylene

b. Polypropylene

c. PVC

d. All of these

237. What is the process of forming a solid material from a liquid or semisolid material by cooling it?

a. Solidification

b. Crystallization

c. Polymerization

d. Vulcanization

238. Which of the following materials is a refractory material?

a. Aluminum

b. Titanium

c. Tungsten

d. Gold

239. What is the process of forming a material into a particular shape by applying force?

a. Forging

b. Casting

c. Extrusion

d. Machining

240. Which of the following materials is a thermosetting plastic?

a. Polyethylene

b. Polypropylene

c. Epoxy

d. PVC

241.What is the process of dissolving a material in a liquid to form a solution?

a. Solvation

b. Dissolution

c. Solutionizing

d. Emulsification

242. Which of the following materials is a piezoelectric material?

a. Aluminum

b. Quartz

c. Copper

d. Gold

243. What is the process of converting a material from a liquid to a gas state?

a. Evaporation

b. Condensation

c. Sublimation

d. Vaporization

244. Which of the following materials is a shape memory alloy?

a. Copper

b. Aluminum

c. Nitinol

d. Gold

245. What is the process of subjecting a material to high-frequency vibrations to improve its properties?

a. Ultrasonic testing

b. Ultrasonic machining

c. Ultrasonic welding

d. Ultrasonic cleaning

246. Which of the following materials is a biomaterial?

a. Titanium

b. Stainless steel

c. Silicone

d. All of these

247. What is the process of removing material from a solid object by using a tool with a cutting edge?

a. Machining

b. Casting

c. Extrusion

d. Rolling

248. Which of the following materials is a shape memory polymer?

a. Polyethylene terephthalate

b. Polycarbonate

c. Polyurethane

d. All of these

249. What is the process of subjecting a material to a high-temperature gas to improve its properties?

a. Carburizing

b. Nitriding

c. Carbonitriding

d. Austempering

250. Which of the following materials is a ferroelectric material?

a. Aluminum

b. Barium titanate

c. Gold

d. Silver

Online Questions and Answers in Engineering Materials Series

Following is the list of multiple choice questions in this brand new series:

Complete List of MCQs in General Engineering and Applied Science per topic