Engineering Materials and Processes MCQs
Engineering Materials and Processes MCQs
Our experts have gathered these Engineering Materials and Processes MCQs through research, and we hope that you will be able to see how much knowledge base you have for the subject of Engineering Materials and Processes by answering these multiple-choice questions.
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1: What is an abrasive?
A. A tool for cutting metal
B. A natural or artificial material such as sand stone, emery, aluminium oxide or silicon carbide.
C. A kind of soap
D. A device for smoothing wood
2: What does ACID stand for?
A. A chemical term to define a material which gives an acid reaction.
B. Acid-forming, Cloudy, Indecisive, Diet
C. Always Crucial In Design
D. Assets, Claims, Insurance, Debts
3: What does the chemical term "ACID" define?
A. A material which gives an acid reaction.
B. A material which gives an neutral reaction.
C. A material which gives an base reaction.
D. A material which gives an alkali reaction.
4: What is the purpose of additives?
A. To improve the quality of oil or fuel
B. To increase the effectiveness of oil or fuel
C. To reduce the quality of oil or fuel
D. To reduce the effectiveness of oil or fuel
5: What are additives?
A. Chemicals added to food to improve its taste
B. Chemicals added to soil to make it more fertile
C. Chemicals added to water to make it safe to drink
D. Chemicals added to oil or fuel to increase its effectiveness and obtain desirable qualities
6: What is the meaning of the word "Aggregate"?
A. Clumped together
B. Small particles that are used for powder metallurgy, that are loosely combined to form a whole
C. Wet
D. Large particles
7: Which of the following is not an allotropic metal?
A. Iron
B. Copper
C. Gold
D. Silver
8: Over what range of temperatures do allotropic metals exist?
A. More than two lattice forms over a range of temperature
B. Metals which do not exist in a lattice form
C. Two lattice forms over a range of temperature
D. One lattice form over a range of temperature
9: What is another word for a substance composed of two or more chemical elements?
A. Element
B. Compound
C. Molecule
D. Alloy
10: What is the meaning of "alloying elements"?
A. Elements added to the base metal to change its properties
B. Elements that are commonly found in alloys
C. Alloys that are made up of two or more metals
D. Elements that make alloys stronger
11: What are the alloying elements present in Alloy Steel?
A. Carbon, Oxygen, Nitrogen, Hydrogen
B. Manganese, Silicon, Sulphur and Phosphorus
12: What is the meaning of the term "ALLOY STEEL"?
A. Steel containing significant quantities of carbon and commonly accepted amounts of manganese, silicon, sulphur and phosphorus.
B. Steel containing significant quantities of carbon and alloying elements added to effect changes in mechanical and physical properties.
C. Steel containing significant quantities of alloying elements added to effect changes in mechanical and physical properties.
D. Steel containing only carbon and commonly accepted amounts of manganese, silicon, sulphur and phosphorus.
13: What is the main element in Alnico materials?
A. Nickel
B. Aluminium
C. Iron
D. Cobalt
14: Which of the following is not an element of an Alnico?
A. Aluminium
B. Cobalt
C. Titanium
D. Nickel
15: What are the constituents of BABBITT METAL?
A. Tin, Copper, Antimony, Lead, Iron, Bismuth
B. Tin, Copper, Antimony, Lead, Iron, Bismuth, zinc
C. Tin, Copper, Antimony, Lead, Iron
D. Tin, Copper, Antimony, Lead, Iron, Bismuth, cadmium
16: What is the minimum percentage of tin in Babbitt metal?
A. 60%
B. 59.5%
C. 55%
D. 65%
17: What is the purpose of backing sand in a foundry?
A. To place next to the facing sand
B. To hold the liquid metal in place
C. To support the weight of the mould
D. It forms the bulk of sand used to complete the mould.
18: What does "BACKING SAND" mean?
A. Sand used to make glass
B. Foundry sand placed next to the facing sand after the latter is in place.
C. Sand used to make the mold for casting
D. Sand used to make concrete
19: What is bainite?
A. A mineral found in bainite
B. A structure in steel that forms between 481° C and the M's temperature.
C. The founder of Bainite
D. A type of rock
20: What is the temperature range for bainite to form?
A. 200° C to 300° C
B. 400° C to 600° C
C. 700° C to 900° C
D. 481° C to the M's temperature
21: What is the name of the inventor of BAKELITE?
A. Dr. L.H. Backeland
B. Dr. William Morton
C. Mr. John Galsworthy
D. Dr. Charles Drew
22: What does BAR stand for?
A. A material with a width to thickness ratio much smaller than sheet or plate
B. A proportionally long material
C. A piece of material thicker than sheet
D. A piece of material thinner than sheet
23: What is BARK?
A. The decarburized layer just beneath the scale that results from heating steel in an oxidizing atmosphere.
B. The protective outer layer of a tree trunk
C. The sound a dog makes
D. A type of boat
24: What is the use of Cadmium?
A. A chemical element
B. White ductile metallic element used to plate steel and as an alloying element.
C. Used for construction
D. It is used in making pens
25: What is the main purpose of CALCIUM ALUMINIUM SILICON?
A. To create new alloys.
B. To degasify and deoxidize steel.
C. To harden already existing alloys.
D. To alloy different metals together.
26: What is the main use of calcium boride?
A. De-oxidation and degasification of non-ferrous metals and alloys.
B. Alloys
C. Decoration
D. Refining
27: What is the colour of Calcium Carbide?
A. Brown
B. Green
C. Greyish black
D. Yellow
28: What is calcium carbide made from?
A. Hydrochloric acid and calcium hydroxide
B. Fusing lime and coke
C. Sodium chloride and calcium oxide
D. Nitric acid and calcium oxide
29: What is the primary use of CALCIUM MANGANESE SILICON?
A. Scavenger for oxides, gases and non-metallic impurities in steel.
B. Used in the production of tools.
C. Alloy containing 17 to 19% calcium, 8 to 10% manganese, 55 to 60% silicon and 10 to 14% iron.
D. Used as a primary alloy in steel.
30: CALCIUM MANGANESE SILICON is an alloy containing _____.
A. 17 to 19% calcium, 8 to 10% manganese, 55 to 60% silicon and 10 to 14% iron
B. 5 to 7% calcium, 3 to 5% manganese, 45 to 50% silicon and 7 to 10% iron
C. 30 to 33% calcium, 15 to 17% manganese, 75 to 80% silicon and 18 to 20% iron
D. 23 to 25% calcium, 12 to 14% manganese, 65 to 70% silicon and 14 to 16% iron
31: What is CALCIUM MOLYBDATE used for?
A. It is used for crushed products containing molybdenum.
B. It is used to add molybdenum to iron and steel produced in electric arc furnace.
C. To add molybdenum to iron and steel produced in open hearth, air furnace or electric furnace.
D. It is used to add molybdenum to iron and steel produced in air furnace.
32: What is the crushed product CALCIUM MOLYBDATE used for?
A. Used to produce glass
B. Used to add molybdenum to iron and steel produced in open hearth, air furnace or electric furnace
C. Used as an insecticide
D. Used in the production of concrete
33: CALCIUM SILICON is an alloy of which three elements?
A. Calcium, silicon and iron
B. Just silicon and iron
C. Just calcium and iron
D. Just calcium and silicon
34: What is the primary use of CALCIUM SILICON?
A. Calcium carbonate
B. Deoxidizer and degasifier for steel and cast iron
C. Alloys
D. Steel and cast iron
35: What is the process called when steel is covered with a cap fitting into the neck of the mould?
A. Capped Steel
B. Bottle Top Steel
C. Rimmed Steel
D. Semiskilled Steel
36: What is the definition of Carbide?
A. An element found in the sun's atmosphere
B. A compound of carbon with one or more metallic elements.
C. A mineral used as an abrasive
D. A gaseous by-product of fermentation
37: What are the simplest carbohydrates?
A. Sugars
B. Amino acids
C. Proteins
D. Fats
38: What is the meaning of "Degasifier"?
A. A material employed for removing gases from metals and alloys.
B. A device for measuring the density of a liquid
C. A machine for cutting metal
D. A tool for measuring the weight of a object.
39: DELTA IRON is an allotropic form of iron which is stable above what temperature?
A. 1540°C
B. 1260°C
C. 1800°C
D. 1390°C
40: From where does dendrite crystal grow?
A. Outward from the surface of a mould
B. In a non-branching tree like pattern
C. From the centre of a mould
D. From the surface of a mould
41: What is the primary use of a deoxidizer?
A. To increase the carbon content of molten metals
B. To increase the silicon content of molten metals
C. To increase the oxygen content of molten metals
D. To remove oxygen from molten metals
42: What does the term "Developer" mean in photography?
A. A processing solution that reduces the exposed grains of an emulsion to metallic silver, thus making the image visible.
B. A device used to take photographs
C. A software used to develop applications
D. A tool used to develop websites
43: What is DEVIZES SAND used for?
A. Fine sand work in the foundry
B. Suitable for use with all types of casting
C. Coarse greenish yellow moulding sand
D. Dry sand work in the foundry for medium and heavy castings
44: What is the allotropic form of carbon?
A. Graphite
B. Diamond
C. Coal
D. Carbon
45: What does DROSS mean?
A. The scum that forms on the surface of molten metal's
B. The process of smelting
C. A type of metal
D. A unit of measurement
46: Which of the following is not a requirement for the sand used in a dry sand mixture?
A. Permeability
B. Strength
C. Porosity
D. Drying time
47: What is the purpose of using a dry sand mixture?
A. For making the moulds that are to be used immediately
B. For making the moulds that are to be dried before using.
C. For sculpting
D. For baking cakes
48: What is the definition of an elastomer?
A. A non-crystalline solid that deforms irreversibly under stress and returns to its original shape when the stress is removed.
B. Any of various elastic substances resembling rubber.
C. A polymer with cross-links that allow it to recover its original shape after being stretched or compressed.
D. A synthetic rubber that is made by vulcanizing rubber with sulfur and is used in a wide variety of applications.
49: What is electric steel used for?
A. Steel structures
B. Electric vehicles
C. Melting in electric furnaces
D. Home appliances
50: What does ELECTRICAL INSULATING MATERIALS do?
A. Provide a path for current to flow
B. Help to regulate the flow of current
C. Offer a very large resistance to flow of current
D. Keep the current from flowing
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