Chemical Engineering - Chemical Engineering Basics

11.
Dislocations are __________ defects.
point
line
volume
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
The thickness of oxide film is y at time t. If K1, K2 and K3 are the temperature dependent constants, the parabolic law of oxidation is given by
y2 = 2k1t + k2
y = k1 ln (k2t + k3)
y = k1 t + k2
y = k1t3 + k2
Answer: Option
Explanation:
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13.
Which of the following has the least value of ultimate tensile strength (UTS) ?
Medium carbon steel
High carbon steel
Cast iron
Wrought iron
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Which of the following is a commonly used manometric liquid for low pressure range?
Ethyl alcohol
Carbon tetrachloride
Glycerol
Ethylene glycol
Answer: Option
Explanation:
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15.
The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.
creep
endurance
fatigue
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.