IET 101- Final Exam || with Error-free Solutions.
metallic correct answers iron, copper, aluminum, magnesium, nickel, titanium, lead, tin, and zinc
properties: luster, high thermal conductivity, high electrical conductivity, ductile, good magnetic
properties
machining correct answers removal of selected areas from a part in order to obtain a desired
shape or finish
alloys correct answers materials composed of 2 or more elements
different types: substitutional (1 atom replaces another), interstitial (1 atom squeezes in with the
rest)
ferrite, pearlite, bainite, martensite, austenite correct answers name the 5 grains of steel in order
from the softest, weakest, most ductile to the strongest, hardest, most brittle
strain correct answers deforms or distorts under force/load
E=change in length/original length
measured in % or in/in
elongation/extension
Linked-Cell Shop correct answers employs u-shaped cells, has sub-assembly lines, uses kanban
workers use multiple machines in their cell, decouplers that connect the movement of parts
between operators
fatigue failure correct answers failure by fracture after repeated stress, even if below the the yield
strength
this failure accounts for 90% of all mechanical failures
manufacturing system correct answers a collection of operations and processes used to obtain a
desired product or component
physical properties correct answers certain properties of materials that don't deal with stress
ex: weight, electrical properties, appearance,melting point,thermal, magnetic
Charpy test correct answers impact test where the test specimen is supported on both sides and
impact is applied to the center notch
Ferrous materials correct answers What kind of materials are mostly used in manufacturing?
Producer goods correct answers goods manufactured for other companies to use to further
manufacture
Hardness correct answers resistance to indentation, scratching, permanent determination,
abrasion, and ware
, Stiffness correct answers deals with modulus of elasticity (Young's Modulus)/ slope of the linear
section
can have high amount if slope is steep
Value added correct answers Direct labor done on a part
1. carbon content
2. alloy additions
3. quenching conditions correct answers what are 3 key effects that influence the heat treatment
of steel?
project shop correct answers manufacturing system in which the project must remain in a fixed
position and the workers bring the parts/machines to the site
low production rate, large products
1. production system
2. manufacturing system
3. manufacturing process correct answers list the systems/processes of how a part is created in
order from largest to smallest
product (finished goods) correct answers raw material + assembly and manufacturing processes
=?
1. cool quickly
2. cool slowly correct answers when heat treating, which cooling techniques match with which
properties? (how quickly it cools)
1. hardening, strong, brittle
2. softening ductile, weaker, tougher
job shop correct answers manufacturing system that is the most basic, slowest,
has several separate stations, range of different work assignments
has bill of materials, route sheet, can produce wide range of products
nonmetals correct answers wood, brick, concrete, glass, rubber, plastics
weaker, less ductile, less dense, poor electrical and thermal conductivity
growing in popularity because it is cheaper, longer lifespan, and recyclable in most cases
slag correct answers extra nonmetal material that comes out of riser during casting
lathes correct answers basic manufacturing process in which cutting material off a part by
spinning
used on a cylindrical work pieces
lean engineer correct answers expert in cell design, setup reduction (tool design), integrated
quality control devices, and reliability
