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PPSC Chemistry Full Book Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | What is the most common alloying ingredient in copper? |
Brass Zinc Cobalt Nickle |
| 2 | 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 |
| 3 | 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> |
| 4 | 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 |
| 5 | 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> |
| 6 | 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 |
| 7 | Iron is said to be abundant in nature. About how many percent of the
earth’s crust is iron. |
10% 5% 20% 8% |
| 8 | 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 |
| 9 | __________ is used for fruits, vegetables and tobacco | Potassium Chloride Potassium Sulphate Potassium nitraite All above |
| 10 | _________ 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 |
| 11 | Potassium sulphate with 48% to 52% potash, is made from. | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Potassium phosphate<b><o:p></o:p></b></p> Potassium Chloride Potassium Nitrate None of these |
| 12 | Ammonium nitrate is sold as a mixture with |
Soda Ash Lime stone Zinc None of above |
| 13 | Ammonia when used directly as a fertilizer is to be injected about_____
under the surface to keep it from seeping out. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">2 inches<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">4 inches<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">6 inches<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">10 inches<o:p></o:p></p> |
| 14 | The percentage of nitrogen in Urea is _____________% |
46 37 82 50 |
| 15 | The percentage of nitrogen in ammonium sulphate is__________% |
27 21 23 19 |
| 16 | The percentage of nitrogen in ammonia is _______________% |
32 82 25 55 |
| 17 | Natural fertilizers are materials derived from | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Plants<o:p></o:p></p> Animal Algae All of above |
| 18 | Fertilizers are classified into | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Two major categories<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Three major categories<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Four major categories<o:p></o:p></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">None of above</span> |
| 19 | The substance added to the soil in very small amounts are called. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Macronutrients<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Micronutrients<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Fertilizers<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> |
| 20 | The substance added to the soil to provide one or more nutrient
elements essential for plants growth are called. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Growth hormones<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Fertilizers<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Salts<o:p></o:p></p> Minerals |
| 21 | Which is major component of Bordeaux mixture. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Copper sulphate<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Sodium chloride<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Calcium chloride<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Magnesium sulphate<o:p></o:p></p> |
| 22 | Which is true for DDT it is. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Not a pollutant<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">An antibiotic<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">A non degradable pollutant<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">A pesticide<o:p></o:p></p> |
| 23 | Most effective pesticide is |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Carbonates<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Organophosphates<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Organ chlorines<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">All of these<o:p></o:p></p> |
| 24 | The nitrogen present in some fertilizers helps plants. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">To fight against diseases<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">To fight against diseases<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">To undergo photosynthesis<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">To produce protein<b><o:p></o:p></b></p> |
| 25 | The percentage of nitrogen in urea is. |
36% 46% 55% 65% |
| 26 | Which one of the following set of raw material is most suitable for
manufacture of urea. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">CH4N2 and CO2<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">H2CO2 and H2O<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">H2O N2 and H2<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">H2O N2 AND KCl<o:p></o:p></p> |
| 27 | The nutrients which are required in very small amount for the normal growth of plants are called. | <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Nitrogenous fertilizers<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Micronutrients<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Phosphorus fertilizer<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">All of the above<o:p></o:p></p> |
| 28 | Argillaceous material does not include. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Vlay<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Marine shells<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Slate<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Blast furnace slag<o:p></o:p></p> |
| 29 | Which of the following potassium fertilizers are more useful for
horticultural crops tobacco and potatatoes. |
KNO3 KCl HNO3 H2SO4 |
| 30 | The cooling of molten urea by air in the tower is called. |
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Prilling<b><o:p></o:p></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Evaporation<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Condensation<o:p></o:p></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: normal">Distillation<o:p></o:p></p> |
