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Tools Of The Metallurgist(Engineering > Engineering Materials ) Questions and Answers
Home
Topic
Engineering
Engineering Materials
Tools Of The Metallurgist
Question 1.
What is the advantage of copper-constantan over iron-constantan?
Low density
Low coefficient of expansion
Low-temperature measurement
Elevated temperature difference
Explanation:-
Answer: Option C. ->
Low-temperature measurement
Answer:
(c).
Low-temperature measurement
Question 2.
Which material is used when radiation pyrometers don’t produce a satisfactory result?
Chromel-Alumel
Iron-Constantan
Copper-Constantan
Rhodium-Platinum
Explanation:-
Answer: Option D. ->
Rhodium-Platinum
Answer:
(d).
Rhodium-Platinum
Question 3.
__________are used as protecting tubes in thermocouples above 2000 F.
Wrought iron
14% chrome iron
Nichrome
Porcelain
Explanation:-
Answer: Option D. ->
Porcelain
Answer:
(d).
Porcelain
Question 4.
Which type of pyrometer uses an electric circuit?
Controlling pyrometer
Optical pyrometer
Radiation pyrometer
Recording pyrometer
Explanation:-
Answer: Option A. ->
Controlling pyrometer
Answer:
(a).
Controlling pyrometer
Question 5.
A radiation pyrometer is based on ___________
Planck’s law
Stefan-Boltzmann law
Rayleigh-Jeans law
Sakuma-Hattori equation
Explanation:-
Answer: Option B. ->
Stefan-Boltzmann law
Answer:
(b).
Stefan-Boltzmann law
Question 6.
Bimetallic strips contain _______ as a metal.
Muntz metal
Yellow brass
Bronze
Aluminum
Explanation:-
Answer: Option B. ->
Yellow brass
Answer:
(b).
Yellow brass
Question 7.
What temperature does the dark red color generally deal with?
950 F
1150 F
1175 F
1300 F
Explanation:-
Answer: Option B. ->
1150 F
Answer:
(b).
1150 F
Question 8.
Bimetallic strips are employed in ________ thermometers.
Vapor-pressure
Liquid-expansion
Metal-expansion
Resistance
Explanation:-
Answer: Option C. ->
Metal-expansion
Answer:
(c).
Metal-expansion
Question 9.
What temperature is the dark orange color associated with?
1475 F
1650 F
1750 F
1800 F
Explanation:-
Answer: Option B. ->
1650 F
Answer:
(b).
1650 F
Question 10.
Measurement of elevated temperatures is defined as ___________
Thermometry
Pyrometry
Metallography
Radiography
Explanation:-
Answer: Option B. ->
Pyrometry
Answer:
(b).
Pyrometry
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