SAIL BSP Bhilai Chemical Operator Exam Sample Paper ( Instrument Mechanic)
CEPTAM Chemical Operator Technician Exam Model Paper
| S.No. | Question |
| 1 | Both temporary and permanent hardness can be removed by using
(a) Slaked Lime (b) Washing Soda (c) NaCl (d) Caustic Soda |
| 2 | Deionised water is prepared by the following method
(a) Clark’s (b) Ion exchange (c) Permutit (d) Calgon |
| 3 | Degree of hardness of water is expressed in terms of PPM of
(a) CaO (b) CaCl2 (c) CaCo3 (d) Ca(HCo3)2 |
| 4 | Chemically soap is
(a) Sodium Stearate (b) Calcium Stearate (c) Magnesium Stearate (d) Ferric Stearate |
| 5 | Area of triangle having side 6 cm, 8 cm and 10 cm is
(a) 48 sq.cm (b) 60 sq.cm (c) 30 sq.cm (d) 24 sq.cm |
| 6 | The reaction that takes place in atom bomb is
(a) Nuclear fusion (b) Nuclear fission (c) Atomization (d) Condensation |
| 7 | When an α particle is given out by a radioactive atom its mass decreases by
(a) 2 unit (b) 6 units (c) 4 units (d) 2.5 units |
| 8 | Two isotopes of the same element differ by number of
(a) Protons (b) Electrons (c) Positrons (d) Neutrons |
| 9 | Stability of nuclei is indicated by
(a) p/n ratio (b) n/p ratio (c) n/e ratio (d) e/n ratio |
| 10 | As we move from left to right of the periodic table, the electro negativity
(a) increases (b) decreases (c) no change (d) zero |
| 11 | The oxide of sodium is
(a) Acidic (b) Basic (c) Amphoteric (d) Neutral |
| 12 | Which are the allotropes of carbon
(a) Diamond (b) Graphite (c) Lamp Black (d) All |
| 13 | The bonds present in diamond
(a) Ionic (b) Covalent (c) Coordinate (d) Conjugate |
| 14 | CnH2n is the general formula used to represent
(a) Alkanes (b) Alkynes (c) Alkenes (d) Alkadienes |
| 15 | Weight of aluminium sheet (density 2.7gm/cc) of size 1 meter width and 1 mm thickness is —-
(a) 27 kg (b) 2.7 kg (c) 0.27 kg (d) 1 kg |
| 16 | Methane undergoes addition reaction
(a) True (b) False (c) Don’t know |
| 17 | Sodium Compound used for washing purpose
(a) NaHCo3 (b) NaOH (c) Na2CO3 (d) NaCl |
| 18 | C-C bond length is the shortest in
(a) Ethane (b) Ethylene (c) Acetylene (d) Ethanol |
| 19 | Following are used in making perfumes and as flavoring agent
(a) Esters (b) Alcohols (c) Ketones (d) Acids |
| 20 | The halide that is not hydrolyzed is
(a) SiCl4 (b) SnCl4 (c) PbCl4 (d) CCl4 |
| 21 | Which of the following is non reducible carbohydrate
(a) Glucose (b) Fructose (c) Sucrose (d) None of these |
| 22 | Another name of dextrose
(a) Glucose (b) Fructose (c) Sucrose (d) Maltose |
| 23 | In Nuclear reactors, heavy water is used as
(a) Fuel (b) Projectile (c) Moderator (d) Arrester |
| 24 | The volume occupied by two moles of nitric oxide at STP is
(a) 11.2 L (b) 22.4 L (c) 44.8 L (d) 5.6 L |
| 25 | The correct statement according to boyle’s law
(a) P/T = Constant (b) PV = Constant (c) V/T = Constant (d) V/n = Constant |
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