PPSC Chemistry Full Book Test With Answers

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PPSC Chemistry Full Book Test

Sr. # Questions Answers Choice
1 Galvanized steel are steel products coated with Carbon Sulphur Zinc Iron
2 Steel that are used for axles, gears, and similar parts requiring medium to high and strength are known as. Medium carbon steel Low carbon steel Very high carbon High carbon steel
3 What group of steels are molybdenum high sped steels. Group A Group D Group M Group H
4 The group of steel are water hardened tool steels. Groups S Groups W Groups O Group F
5 What type of steel has 0.8 % carbon and 100% pearlite. Austenite Eutectoid Hyper eutectoid Silver steel
6 Which of following is used as make up chemical in Kraft process. Na2CO3 KCl Na2SO4 NaOH
7 Purpose of sizing is. To increase the strength To improve formation To increase resistance toward water To remove wastes
8 Which of the following give higher fibre strength. Eucalyptus Pine Bagnasse Sugar cane
9 Which of the following term is not used in pulping. Kappa number Copper number Bromine Number Octane Number
10 Final paper wound in the form of a real having final moisture of about. 6-8% 9 - 12 % 13-15 % 4 - 10%
11 What is the colour of pulp obtained from chemical pulping. Black Brown Blue Red
12 What is the function of Head Box in paper making machine. It dry the paper It reduces thickness of paper It makes the surface of paper smooth It discharge the pulp at the screen of fourdrinier table
13 Calander stock is a process in paper making in which. Thickness of the paper is reduced Surface of paper is made smooth Moisture is removed Both A and B
14 Which sequence of steps is correct in paper making machine Pressing Dyring, Flow spreader Calender stock Flow spreader, Pressing, Prying Calender sock Drying ,Pressing , Flow spreader, Calender stock None of above
15 In which paper some additive is not added. Carbon paper Filter paper Glazed paper Art paper
16 Which substances is not used as an additive in paper industry. Glucose Starch Alum None of these
17 Which substance is used as filler or additive in paper making. Starch Glucose Cellulose Maltose
18 Which treatment is done with pulp before delivering it to paper making machine. Pulp is disperse din water to make slurry<div><br></div> Mechanical refining or heating of the fibers Addition of chemical additives and recycled fibres from the waste paper plant All above
19 Organic farming is the technique of raising crops through uses of.

 Manures Biofertilizers Resistant varieties All of these
20 The juice is allowed to boil at lower temperatures to protect the sugar from Hardening Solubility in water Caramelization Dwatering
21 The first step of formation of sugar is Extraction Washing Cutting Clarifying
22 What is the raw material of sugar industry. Sugar cane Potato Carrot Sugar heat Both A and C
23 Which type of the coal preferred for metallurgical coal. Lignite Peat Bituminous coal None of these
24 Pyrolysis gasoline is obtained from. Catalytic cracking Gasification Steam cracking Reforming
25 Aviation Fuel contains. Light Naphtha Medium Naphtha Kerosene Diesel
26 Bromine number is measure of. Paraffins Unsaturates Saturates None of these
27 Which of the following is not adsorptive separation process. Parex Olex Penex None of these
28 If diesel has cetane number of 50 then the diesel index will be. 36 46 56 66
29 Which of the following statement is not true is case of catalytic reforming. Dehydrogenations high endothermic Dehydrogenation is exothermic Hydrodealkylation reactions are endothermic None of these
30 Which of the following process is not sorbent separation technolgy. Penex Parex Molex Olex
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