MCQ in Engineering Materials Part 11 | ECE Board Exam

This is the Multiple Choice Questions in Engineering Materials Part 11 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 11 of the Series

⇐ MCQ in Engineering Materials Part 10 | ECE Board Exam

Choose the letter of the best answer in each questions.

501. Which of the following alloys is commonly used for bearings due to its excellent wear resistance?

A. Brass

B. Bronze

C. Nichrome

D. Stainless steel

502. The electrical conductivity of a metal primarily depends on the availability of ________.

A. Protons

B. Free electrons

C. Ions

D. Valence neutrons

503. The property of a material to resist sudden impact without fracturing is called ________.

A. Resilience

B. Toughness

C. Malleability

D. Elasticity

504. Which of the following processes is used to increase the surface hardness of steel?

A. Annealing

B. Quenching

C. Case hardening

D. Normalizing

505. The ability of a material to resist the growth of cracks under repeated loading is referred to as ________.

A. Creep resistance

B. Fatigue resistance

C. Tensile strength

D. Toughness

506. What is the term for the time-dependent deformation of a material under a constant load or stress?

A. Fatigue

B. Yielding

C. Creep

D. Hardening

507. Which of the following is considered a non-metallic material?

A. Copper

B. Graphite

C. Steel

D. Aluminum

508. What is the primary element used to improve the corrosion resistance of steel?

A. Nickel

B. Manganese

C. Chromium

D. Carbon

509. The property of a material that allows it to be hammered or rolled into thin sheets is called ________.

A. Ductility

B. Malleability

C. Plasticity

D. Elasticity

510. Which test is commonly used to determine the hardness of a material?

A. Tensile test

B. Brinell hardness test

C. Impact test

D. Fatigue test

511. A material that has the same properties in all directions is referred to as ________.

A. Isotropic

B. Anisotropic

C. Homogeneous

D. Heterogeneous

512. The process of heating a material and cooling it in a controlled manner to relieve internal stresses is known as ________.

A. Quenching

B. Annealing

C. Tempering

D. Normalizing

513. What is the primary reason for adding manganese to steel?

A. Improve ductility

B. Increase hardness

C. Enhance machinability

D. Improve wear resistance

514. The region in a stress-strain curve where stress is directly proportional to strain is called the ________.

A. Plastic region

B. Elastic region

C. Yield point

D. Fracture point

515. What is the primary function of a galvanic coating on steel?

A. Increase ductility

B. Enhance electrical conductivity

C. Prevent corrosion

D. Improve hardness

516. Which of the following materials is typically used in the manufacturing of high-strength cables?

A. Aluminum

B. Copper

C. Steel

D. Lead

517. A material’s resistance to fracture when a crack is present is quantified by its ________.

A. Toughness

B. Fracture toughness

C. Yield strength

D. Hardness

518. The point in a stress-strain diagram where a material begins to deform plastically is known as the ________.

A. Ultimate tensile strength

B. Yield point

C. Fracture point

D. Elastic limit

519. Which of the following materials is commonly used as an insulator in electrical applications?

A. Copper

B. Aluminum

C. Silicon

D. Glass

520. What type of polymer can be repeatedly softened and reshaped upon heating?

A. Thermoplastic

B. Thermosetting

C. Elastomer

D. Copolymer

521. The ability of a material to conduct heat is known as ________.

A. Thermal expansion

B. Thermal conductivity

C. Specific heat

D. Heat capacity

522. Which of the following properties is NOT considered a mechanical property?

A. Elasticity

B. Toughness

C. Density

D. Hardness

523. The material property that describes its ability to be drawn into thin wires is ________.

A. Malleability

B. Ductility

C. Toughness

D. Resilience

524. Which metal is primarily used in the aerospace industry due to its high strength-to-weight ratio?

A. Steel

B. Titanium

C. Copper

D. Aluminum

525. What is the term for the gradual degradation of a material due to environmental exposure, such as moisture or chemicals?

A. Fatigue

B. Creep

C. Corrosion

D. Erosion

526. Which type of steel is commonly used in the construction of bridges and buildings?

A. High-carbon steel

B. Stainless steel

C. Low-carbon steel

D. Tool steel

527. What type of material expands its volume upon freezing?

A. Water

B. Aluminum

C. Copper

D. Lead

528. The measure of the stiffness of a material is defined by its ________.

A. Modulus of elasticity

B. Yield strength

C. Hardness

D. Poisson’s ratio

529. Which alloy is used in the manufacturing of jet engine parts due to its high-temperature resistance?

A. Bronze

B. Inconel

C. Brass

D. Stainless steel

530. The property of a material to exhibit different properties in different directions is known as ________.

A. Isotropy

B. Anisotropy

C. Homogeneity

D. Heterogeneity

531. The process of heating a metal to a high temperature and then rapidly cooling it to increase its hardness is known as ________.

A. Tempering

B. Annealing

C. Quenching

D. Normalizing

532. Which of the following is a property of polymers that makes them ideal for insulating applications?

A. High tensile strength

B. High conductivity

C. High thermal resistance

D. Low electrical conductivity

533. A material that can withstand a significant amount of plastic deformation without breaking is called ________.

A. Brittle

B. Ductile

C. Hard

D. Tough

534. Which of the following materials is typically used in the manufacture of cutting tools due to its hardness?

A. Stainless steel

B. Tungsten carbide

C. Aluminum

D. Copper

535. The ultimate tensile strength of a material refers to ________.

A. The point where the material fractures

B. The maximum stress the material can withstand without deformation

C. The maximum stress the material can withstand before failure

D. The stress required to deform the material plastically

536. Which of the following materials is most commonly used in the electrical industry due to its high electrical conductivity?

A. Gold

B. Aluminum

C. Copper

D. Steel

537. The ability of a material to return to its original shape after being deformed by an external force is called ________.

A. Plasticity

B. Malleability

C. Elasticity

D. Ductility

538. The strain that occurs in a material when it is stretched or compressed is called ________.

A. Stress

B. Strain

C. Shear stress

D. Torsion

539. Which of the following materials is known for its excellent corrosion resistance, particularly in marine environments?

A. Stainless steel

B. Brass

C. Cast iron

D. Carbon steel

540. The property of a material to resist the flow of electrical current is called ________.

A. Conductivity

B. Resistivity

C. Permittivity

D. Permeability

541. Which of the following materials is typically used in electrical wiring due to its excellent conductivity and flexibility?

A. Copper

B. Aluminum

C. Steel

D. Gold

542. The ability of a material to absorb energy up to its elastic limit without permanent deformation is called ________.

A. Resilience

B. Toughness

C. Strength

D. Hardness

543. Which type of steel is most commonly used for making structural beams and girders?

A. Tool steel

B. Low-carbon steel

C. Stainless steel

D. High-carbon steel

544. The resistance of a material to the propagation of cracks is known as ________.

A. Toughness

B. Fracture toughness

C. Fatigue strength

D. Ductility

545. A material that resists deformation but breaks easily under stress is said to be ________.

A. Brittle

B. Tough

C. Ductile

D. Malleable

546. The process of heating a metal and allowing it to cool slowly to reduce hardness and increase ductility is called ________.

A. Quenching

B. Tempering

C. Annealing

D. Normalizing

547. The property of a material that refers to its ability to be drawn into a wire is known as ________.

A. Ductility

B. Malleability

C. Toughness

D. Hardness

548. The amount of energy required to deform a material elastically is called ________.

A. Modulus of toughness

B. Modulus of resilience

C. Elastic modulus

D. Yield strength

549. Which of the following alloys is made by combining copper and tin?

A. Bronze

B. Brass

C. Stainless steel

D. Cast iron

550. The property of a material that refers to its resistance to fracture under impact loading is called ________.

A. Toughness

B. Resilience

C. Ductility

D. Hardness

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