CE MAT Practice Test 3
Terms in this set (32)
Which one of the following is the correct formula for computing the flexural strength from a beam test using center point loading?
What can the results of the brinell and rockwell tests be used for besides indication of hardness of the metals tested?
Estimation of Ultimate Strength
Which one of the following is a function of limestone in the production of iron in the blast-furnace process?
it helps to get rid of impurities such as sulfur in the iron ore
Which of the following ferrous metals has the lowest amount of carbon in it?
Which of the following statements is NOT TRUE regarding effects of work hardening on properties of steel?
Work hardening increases the toughness
Which of the following alloying elements is most commonly used in making cutting-tool steel?
What is the most common usage of zinc in steel structures?
To protect steel from corrosion
What are the typical tensile strength and elastic modulus of PMMA?
8,000 and 300,000 psi
What is the main purpose of adding anti-oxidant to plastic?
to reduce the rate of hardening with time of the plastic
Which one of the following statements is NOT TRUE concerning the difference between plastics and concrete? *
plastics have a lower coefficient of thermal expansion than concrete
The main purpose of adding plasticizers to plastics is
to increase flexibility
The first commercial plastic is
What conditions must be satisfied in a thermal stress analysis
deformations must be compatible and forces must be in equilibrium
what are the functions of coke in the blast furnace process in the production of iron
provides both energy and carbon monoxide
which one of the following ferrous irons most likely has the lowest carbon content
what is the basic difference between the usages of the brinell and rockwell hardness tests
brinell test requires a larger test specimen
most important alloying element used in stainless steel
which of the following methods is not effective in reducing the corrosion rate of steel
Which of the following is not a main raw material for production of iron in the blast furnace process
Blast furnace slag
Which of the following is true concerning the effect of work hardening on steel
work hardening increases the hardness
What is the composition of AISI 1040 steel?
plain carbon steel with 0.4% carbon
Which of the following statements is true concerning the differences between plastics and metals?
plastics have higher creep deformation under load
Which of the following ferrous metals has the highest amount of carbon in it?
Grey cast iron
if concrete has an ultimate flexural strength of 650 psi, which is the endurance limit in flexure likely to be?
What is the typical tensile strength and elastic modulus of the plastic Acrylonitrile-Butadiene-Styrene (ABS)?
6,000 and 300,000 psi
Which of the following statements is NOT TRUE regarding the affects of carbon content on properties of steel?
High carbon content gives high ductility.
Which one of the following statements is NOT TRUE concerning the difference between plastics and concrete?
plastics generally have a higher elastic modulus to tensile strength ratio than concrete
Which one of the following statements is NOT TRUE regarding the characteristics of AISI 1045 steel?
It has a carbon content of 4.5%
Which of the following statements is TRUE regarding the effects of work hardening on properties of steel?
Work hardening decreases the toughness
Which one of the following statements is TRUE regarding the properties of ASTM A36 steel?
It has a yield strength of 36ksi
Brass is an alloy of copper and
Which one of the following statements is true concerning the difference between plastics and concrete?
Plastics generally have a lower elastic modulus than concrete