Metallurgy Study Guide with Complete
Solutions
true or false- a malleable metal is not capable of being shaped? - ANS-false
true or false- archeologists typically map ages of civilization by the most significant
material involved? - ANS-true
during the bronze age what was made into decorative items due to its resistance to
tarnishing? - ANS-gold
true or false- meteoric iron was highly prized due to its ability to be worked into
strong, tough tools with sharp edges? - ANS-true
the matter remaining once its removed from its ore is? - ANS-slag
cast iron ingots are also known as? - ANS-pig
bloomeries were the first furnaces to produce ___ iron from its ore? - ANS-wrought
true or false- wrought iron can be treated to be stronger than true steel? - ANS-
false
___ iron will crack if forged while hot since it contains large amounts of sulfur. -
ANS-bog
what iron allows the production of larger volumes of higher grade wrought iron? -
ANS-puddle
disadvantage of the open hearth furnace? - ANS-took 8 hours to make one piece of
steel
true or false- with the Hall-Heroult process the cost of aluminum dropped 50%. -
ANS-false
what produces 70% of US steel? - ANS-minimills
this process uses methane, carbon monoxide, and hydrogen to remove oxygen
without the need for melting - ANS-direct reduction
true or false- the focus of metallurgy today is finding ore deposits and extracting
metal from that ore. - ANS-false
what is responsible for the properties in metals? - ANS-microstructures
, __ is a substance comprised of either two or more metals and one or more
nonmetals mixed together while melted. - ANS-alloy
all metals who is mostly made of iron are? - ANS-ferrous
true or false- steel is mostly made of iron with small amounts of carbon and other
elements? - ANS-true
true or false- one alloy can be processed two different ways and yield different
properties? - ANS-true
what heats up a piece of metal using high frequency energy? - ANS-induction coil
true or false- everyone in the production stream must be fully aware of the
performance requirements of new machinery? - ANS-true
true or false- technicians should NOT be considered metallurgists because they are
not involved in the production of metals? - ANS-false
is this statement true or false- "only the people directly involved in metallurgy need
to understand the behaviors of metals" - ANS-false
true or false- there were universal rules for safety back in the day? - ANS-false
___ is a US gov organization that sets and enforces standards to ensure safe and
healthful work conditions for all workers. - ANS-OSHA
what extinguisher is used for a trash fire? - ANS-Class A
what extinguisher is used for a kitchen fire? - ANS-class K
true or false- only Class D extinguishers can be used on metal fires? - ANS-true
what are the most required PPE? - ANS-safety glasses
____ is an OSHA required document that records the chemicals and hazardous
waste you've been around - ANS-SDS
can metal between 200-900 degrees still burn your skin even if its not glowing? -
ANS-yes
what is a corrosive chemical used to reveal microstructures in a metal? - ANS-
etchant
is this statement true or false- "the injured employee only requires minor first aid"?
- ANS-false
what is the standard unit of length in the metric system? - ANS-meter
Solutions
true or false- a malleable metal is not capable of being shaped? - ANS-false
true or false- archeologists typically map ages of civilization by the most significant
material involved? - ANS-true
during the bronze age what was made into decorative items due to its resistance to
tarnishing? - ANS-gold
true or false- meteoric iron was highly prized due to its ability to be worked into
strong, tough tools with sharp edges? - ANS-true
the matter remaining once its removed from its ore is? - ANS-slag
cast iron ingots are also known as? - ANS-pig
bloomeries were the first furnaces to produce ___ iron from its ore? - ANS-wrought
true or false- wrought iron can be treated to be stronger than true steel? - ANS-
false
___ iron will crack if forged while hot since it contains large amounts of sulfur. -
ANS-bog
what iron allows the production of larger volumes of higher grade wrought iron? -
ANS-puddle
disadvantage of the open hearth furnace? - ANS-took 8 hours to make one piece of
steel
true or false- with the Hall-Heroult process the cost of aluminum dropped 50%. -
ANS-false
what produces 70% of US steel? - ANS-minimills
this process uses methane, carbon monoxide, and hydrogen to remove oxygen
without the need for melting - ANS-direct reduction
true or false- the focus of metallurgy today is finding ore deposits and extracting
metal from that ore. - ANS-false
what is responsible for the properties in metals? - ANS-microstructures
, __ is a substance comprised of either two or more metals and one or more
nonmetals mixed together while melted. - ANS-alloy
all metals who is mostly made of iron are? - ANS-ferrous
true or false- steel is mostly made of iron with small amounts of carbon and other
elements? - ANS-true
true or false- one alloy can be processed two different ways and yield different
properties? - ANS-true
what heats up a piece of metal using high frequency energy? - ANS-induction coil
true or false- everyone in the production stream must be fully aware of the
performance requirements of new machinery? - ANS-true
true or false- technicians should NOT be considered metallurgists because they are
not involved in the production of metals? - ANS-false
is this statement true or false- "only the people directly involved in metallurgy need
to understand the behaviors of metals" - ANS-false
true or false- there were universal rules for safety back in the day? - ANS-false
___ is a US gov organization that sets and enforces standards to ensure safe and
healthful work conditions for all workers. - ANS-OSHA
what extinguisher is used for a trash fire? - ANS-Class A
what extinguisher is used for a kitchen fire? - ANS-class K
true or false- only Class D extinguishers can be used on metal fires? - ANS-true
what are the most required PPE? - ANS-safety glasses
____ is an OSHA required document that records the chemicals and hazardous
waste you've been around - ANS-SDS
can metal between 200-900 degrees still burn your skin even if its not glowing? -
ANS-yes
what is a corrosive chemical used to reveal microstructures in a metal? - ANS-
etchant
is this statement true or false- "the injured employee only requires minor first aid"?
- ANS-false
what is the standard unit of length in the metric system? - ANS-meter
