Materials And Processes - Chapter 1

Question 1

1) The majority of metals and some other materials fall into a class that is often referred to as:

a. manufacturing materials
b. construction materials
c. engineering materials
d. fabrication materials

Answer 1

c. engineering materials

Question 2

2) Engineering materials typically have relatively high values of which of the following characteristics?

a. Elasticity, creep resistance, and plasticity
b. Hardness, strength, toughness, and durability
c. Transparency, homogeneity, and weight
d. Translucence, geometry, and flexibility

Answer 2

b. Hardness, strength, toughness, and durability

Question 3

3) Early manufacturing was primarily devoted to products for which of the following sectors?

a. Agricultural and military goods
b. Art and luxury goods
c. Health and human services
d. The industrial revolution

Answer 3

a. Agricultural and military goods

Question 4

4) Most manufacturing jobs directly connected with the product require that the technician or operator have a specific knowledge about certain phases of the work and _________ of related areas.

a. technical knowledge
b. theoretical knowledge
c. general knowledge
d. in-depth knowledge

Answer 4

c. general knowledge

Question 5

5) To ensure that the final product has the quality and reliability expected from the design, qualified personnel must:

a. examine the processed material at every stage of production
b. examine the product upon completion of production
c. examine the product at each stage of production
d. examine the product when it is returned by the customer for a defective condition

Answer 5

c. examine the product at each stage of production

Question 6

6) Communication between designers and production personnel relies heavily on both parties understanding the:

a. nomenclature used in the area of concern
b. engineer-worker relationship
c. supervisor-subordinate relationship
d. time it takes to manufacture the part in question

Answer 6

a. nomenclature used in the area of concern

Question 7

7) Melting of a material and control of its shape while it solidifies is referred to as:

a. forging
b. smelting
c. casting
d. extruding

Answer 7

c. casting

Question 8

8) Reshaping of a material in the plastic or semisolid form is often called:

a. forming
b. casting
c. smelting
d. welding

Answer 8

a. forming

Question 9

9) Shaping by metal removal in the solid state is commonly performed to product shapes. If the removed material is in chip form, the process is:

a. chipping
b. grinding
c. burring
d. machining

Answer 9

d. machining

Question 10

10) The metallurgical changes that take place during casting are of the same nature as those that take place in:

a. extrusion
b. fusion welding
c. lamination
d. rolling

Answer 10

b. fusion welding

Question 11

11) Why do most manufactured articles consist of assemblies of a number of separate parts?

a. Nothing can be manufactured from a single piece of material
b. All articles manufactured are separate parts
c. Finished products that are constructed from a single piece of material may not meet design requirements and cannot be practically produced at a reasonable cost
d. Complex products with multiple material properties are easily made from a single material on a routine basis

Answer 11

c. Finished products that are constructed from a single piece of material may not meet design requirements and cannot be practically produced at a reasonable cost

Question 12

12) Most of the metal that is refined is first cast as:

a. bar
b. extrusion
c. slab
d. pig or ingot

Answer 12

d. pig or ingot

Question 13

13) A designer must be familiar with both the functional requirements of the product and the probable market demands for various levels of quality and appearance. They must also be familiar with:

a. the mechanical properties of the material they choose to manufacture the product
b. the intricate details of how each manufacturing operation will be performed
c. the final pricing of the product
d. where the product will need to be manufactured to give the greatest profit to the manufacturer

Answer 13

a. the mechanical properties of the material they choose to manufacture the product

Question 14

14) Proper application of inspection methods and interpretation of their test indications relies upon:

a. valid engineering drawings
b. qualified nondestructive testing personnel
c. a robust destructive testing process to prove the product will not fail in service
d. professional supervision during the manufacturing and assembly processes

Answer 14

b. qualified nondestructive testing personnel

Question 15

15) In general, the most economical method for producing complex shape changes with no material volume change is:

a. machining
b. casting
c. welding
d. shearing

Answer 15

b. casting

Question 16

16) Metal plating, electrical discharge machining, chemical milling, and electron beam machining are all examples of which type of shape-changing processes?

a. No volume change method
b. Addition or combination change method
c. Subtraction or removal change method
d. Special shape-changing method

Answer 16

d. Special shape-changing method