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PPSC Chemistry Part VI Applied/Industrial Chemistry Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | What is a measure of rigidity? |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Stiffiness<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Jardmess<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Strength<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Modulus of elasticity<b><o:p></o:p></b></p> |
| 2 | What is the ratio of stress to strain in a material loaded within its
elastic ranger. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Poisson’s ratio<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Refractive index<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Modulus of elasticity<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">None of above<o:p></o:p></p> |
| 3 | What is the ratio of the maximum load in a tension test to the original
cross sectional area of the test bar. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Tensile strength<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Yield strength<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Shear strength<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Torsion<o:p></o:p></p> |
| 4 | What typical penetrator is used in Brinell hardness test | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal"><b>1</b>0 mm ball<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">1.6 mm diameter ball<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">20<sup>o</sup> needle<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">None of these<o:p></o:p></p> |
| 5 | What is a method of casehardening involving diffusion in which the
steel to be casehardened is machined, heat treated placed in an air tight box
and heated to about 1000 oF |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Annealing<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Normalizing<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Carburizing<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Decomposition<o:p></o:p></p> |
| 6 | What is the most undesirable of all the elements commonly found in
steels. |
Sulphur Phosphorus Silocn Magnesium |
| 7 | What do you call earth and stone missed with the iron oxide | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Hematite<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Gangue<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Ore<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Residue<o:p></o:p></p> |
| 8 | What field of study encompasses the procurement and production of
metals. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Metallury<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Geology<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Metagraphy<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Nanochemistry<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal"><o:p></o:p></p> |
| 9 | What is defined as an intimate mechanical mixture of two or more phases
having a definite composition and a definite temperature of transformation
within the solid state. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Pearlite<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Eutechtoid<b><o:p></o:p></b></p> <span style="font-size:11.0pt;line-height:107%; font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Delta solid solution</span> None of these |
| 10 | What refer to the casehardening process by which the carbon content of
the steel ear the surface of a part is increased? |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Carburizing<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Annealing<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Normalizing<o:p></o:p></p> None of these |
| 11 | What is the most common alloying ingredient in copper? |
Brass Zinc Cobalt Nickle |
| 12 | What is a coal that has been previously burned in an oxygen poor
environment? |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Tuyere<o:p></o:p></p> Coke Silver Diamond |
| 13 | What field of study encompasses procurement and production of metals. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Metallurgy<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Geology<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Material science<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Metalgraphy<o:p></o:p></p> |
| 14 | The following statements are true except one which one. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Carburizing does not harden a steel<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Flame and induction hardening require the use of hard enable steels.<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Quench –hardened steel does not require tempering to present brittleness<b><o:p></o:p></b></p> None of these |
| 15 | What is the lowest temperature diffusion hardening process and does not require a quench | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Carburizing<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Tempering<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Nitriding<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Melting<o:p></o:p></p> |
| 16 | What is the advantage of quench hardening? |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Imporoved strength<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Hardness<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Wear characteristics<o:p></o:p></p> All of the choice |
| 17 | Iron is said to be abundant in nature. About how many percent of the
earth’s crust is iron. |
10% 5% 20% 8% |
| 18 | The brown colour of the pulp obtained from chemical pulping is due to
the present of |
Chlorine <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Residual lignin<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Sodium hydochlorite<o:p></o:p></p> All above |
| 19 | __________ is used for fruits, vegetables and tobacco | Potassium Chloride Potassium Sulphate Potassium nitraite All above |
| 20 | _________ is preferred for horticultural crops and for tobacco and
potatoes. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Potassium Chloride<o:p></o:p></p> Potassium Sulphate Potassium NItrate None of these |
