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1. Questions: 1.1 [18] Select if the following sentences are true or false: When the hardness of a metal increases, its stiffness increases. When the hardness of a metal increases, its ductility increases A table caption is placed below the table in a report. When copper and zinc are soldered together and placed in an electrolytic solution, both will corrode but the zinc will corrode faster. In general, true stress is higher than engineering stress. A quench in water is more severe than a quench in oil. A square window concentrates the stress less than a round window. The fracture face of a brittle material is smooth. More than 50% of polymers in the United States are recycled There is no normal (ie, along the beam length) stress in the Neutral axis of a beam loaded in bending. Polymer atoms are arranged in an FCC structure Standard reduction potentials of metals can be used to rank their reactivity in sea-water. On average, ceramics expand more than metals when heated. $T_g$ is the Glass Transition temperature. The zinc of a galvanized pipe acts as the sacrificial anode. Wet corrosion often occurs selectively instead of uniformly, so the general strategy in fighting wet corrosion is to allow for uniform attack but suppress selective attack Cycling a material at 120% its yield stress qualifies as low amplitude fatigue I cannot access library resources unless I am physically on campus 1.2 [2] What is the general mechanism to strengthen crystalline materials (e.g., a metal)? Heat treatment is the general mechanism to strengthen anything 1.3 [3] Give three specific strategies for manipulating strength: • Precipitation • work hardening • Solution hardening

1. Questions:
1.1 [18] Select if the following sentences are true or false:
When the hardness of a metal increases, its stiffness increases.
When the hardness of a metal increases, its ductility increases
A table caption is placed below the table in a report.
When copper and zinc are soldered together and placed in an electrolytic
solution, both will corrode but the zinc will corrode faster.
In general, true stress is higher than engineering stress.
A quench in water is more severe than a quench in oil.
A square window concentrates the stress less than a round window.
The fracture face of a brittle material is smooth.
More than 50% of polymers in the United States are recycled
There is no normal (ie, along the beam length) stress in the Neutral axis of
a beam loaded in bending.
Polymer atoms are arranged in an FCC structure
Standard reduction potentials of metals can be used to rank their reactivity in
sea-water.
On average, ceramics expand more than metals when heated.
$T_g$ is the Glass Transition temperature.
The zinc of a galvanized pipe acts as the sacrificial anode.
Wet corrosion often occurs selectively instead of uniformly, so the general
strategy in fighting wet corrosion is to allow for uniform attack but suppress
selective attack
Cycling a material at 120% its yield stress qualifies as low amplitude fatigue
I cannot access library resources unless I am physically on campus
1.2 [2] What is the general mechanism to strengthen crystalline materials (e.g., a metal)?
Heat treatment is the general mechanism to strengthen anything
1.3 [3] Give three specific strategies for manipulating strength:
• Precipitation
• work hardening
• Solution hardening

$1. Questions: 1.1 [18] Select if the following sentences are true or false: When the hardness of a metal increases, its stiffness increases. When the hardness of a metal increases, its ductility increases A table caption is placed below the table in a report. When copper and zinc are soldered together and placed in an electrolytic solution, both will corrode but the zinc will corrode faster. In general, true stress is higher than engineering stress. A quench in water is more severe than a quench in oil. A square window concentrates the stress less than a round window. The fracture face of a brittle material is smooth. More than 50% of polymers in the United States are recycled There is no normal (ie, along the beam length) stress in the Neutral axis of a beam loaded in bending. Polymer atoms are arranged in an FCC structure Standard reduction potentials of metals can be used to rank their reactivity in sea-water. On average, ceramics expand more than metals when heated. Tg is the Glass Transition temperature. The zinc of a galvanized pipe acts as the sacrificial anode. Wet corrosion often occurs selectively instead of uniformly, so the general strategy in fighting wet corrosion is to allow for uniform attack but suppress selective attack Cycling a material at 120% its yield stress qualifies as low amplitude fatigue I cannot access library resources unless I am physically on campus 1.2 [2] What is the general mechanism to strengthen crystalline materials (e.g., a metal)? Heat treatment is the general mechanism to strengthen anything 1.3 [3] Give three specific strategies for manipulating strength: • Precipitation • work hardening • Solution hardening$

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