DRDO Electro Plater Exam Paper

Aspirants are waiting for CEPTAM 10 official Advertisement. DRDO CEPTAM 10 official notification may be published in this year. Here, out team is proving a model paper for the said exam, which will be useful to you.

CEPTAM Technician Electro Plater Exam Sample Question Paper

DRDO Electro Plater Exam Model Paper

Sr.No. Question
1 According to Ohm’s Law Voltage/Current = —–

(a) Resistance      (b) Conductance         (c) Impedance    (d) Electric Charge

2 Electrical resistance of a metal —— with increase of temperature

(a) decreases        (b) does not change       (c) increases     (d) None of these

3 Electro-less plating of the following metal is not possible

(a) Cadmium       (b) Nickel                       (c) Copper       (d) Silver

4 When the atmospheric pressure increases, the boiling point —-

(a) increase         (b) decrease                     (c) Does not change

5 Hard Anodising process is carried out at

(a) Elevated temperature                              (b) Room temperature

(c) Vacuum                                                  (d) Low temperature

6 PVD coating is a type of

(a) Vapour phase coating                           (b) Thermal spray coating

(c) Hot dip coating                                     (d) Molten salt bath coating

7 To neutralize acid spillage, the following chemical can be use

(a) Acetone                                                (b) Sodium Bicarbonate

(c) Potassium dichromate                             (d) Kerosene

8 The following is not a surface treatment process/ operation

(a) Blackening       (b) Peening        (c) Solutionising         (d) Pickling

9 ‘Watt’ is the unit of

(a) Power               (b) Energy         (c) Work                     (d) Heat

10 The mean value of 70,78,84,68 & 80 is

(a)  76                    (b) 84                 (c) 68                          (d) 5

11 Salt Spray test is used for evaluating

(a) Hardness     (b) Adhesion   (c) Corrosion resistance  (d) Electrical Resistance

12 According to Faraday’s first law of Electrolysis, the mass of the substance deposited = Electrochemical equivalent x Current x——

(a) Time             (b) Temperature           (c) Voltage         (d) Resistance

13 —– is a type of electro-deposition in which metal is deposited onto a mandrel until the required size is achieved, after which the mandrel is removed to reproduce the part

(a) Electro-winning                                 (b) Electro-polishing

(c) Electro-forming                                 (d) Electro-chemical machining

14 The total number of atoms present in one molecule of an element or a substance is called

(a) Atomic Number        (b) Valency      (c) Oxidation Number      (d) Atomicity

15 The matter contained in a substance is called is

(a) Volume                   (b) Mass             (c) Specific Gravity            (d) Density

16 Deposition of Zinc by Hot dip method is called

(a) Zincating              (b) Galvanising         (c) Gilding       (d) Cladding

17 The heat required to raise the temperature of a liquid is the product of its mass, —- and the difference in temperature.

(a) Specific gravity                                 (b) Specific Conductivity

(c) Specific Heat                                     (d) Specific Resistance

18 — is a noble metal

(a) Silver                  (b) Sodium             (c) Iron             (d) Cadmium

19 The pH of an acid solution will always be

(a) > 7                      (b) 7                       (c) 14                 (d) < 7

20 Current per unit area is called

(a) Cathode Efficiency                          (b) Current Density

(c) Anode Efficiency                            (d) Specific Conductivity

21 Faraday is a unit of

(a) Current        (b) Resistance           (c) Potential Difference    (d) Electric Charge

22 1mm = —μm

(a) 0.001            (b) 0.01                  (c) 1000                 (d) 100

23 The nucleus of an atom consist of

(a) Protons & Neutrons                            (b) Protons & Electrons

(c) Neutrons & Electrons                         (d) Electrons alone

24 Anodising of the following metal is not possible

(a) Titanium        (b) Aluminium          (c) Iron             (d) Magnesium

25 Phosphating is an example for

(a) Hot dipping                                       (b) Vapour Deposition

(c) Thermal spraying                               (d) Conversion coating


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