BGAS Grade 2/3 Model Multiple Choice question & answers - Part 8

-

 201.        Which type of nozzle given greater control?

a)            Venture Nozzle

b)            Short bore Nozzle

c)            Straight bore Nozzle

d)            Angled Nozzle

 




202.        Copper Slag is

a)            Shatters

b)            Does not shatters

c)            Spherical

d)            None of the above

 

203.        Limits for Testex Tape use Coarse

a)            0.8 to 2.0 mil

b)            0.6 to 2.0 mil

c)            0.8 to 4.0 mil

d)            0.6 to 4.0 mil

 

204.        Limits for Testex Tape use X - Coarse

a)            0.8 to 2.0 mil

b)            0.6 to 2.0 mil

c)            1.5 to 4.5 mil

d)            1.6 to 4.0 mil

 

205.        A procedure to test for the presence of Hygroscopic salts, is the

a)            PotassiumHexa-cyanoferrate test

b)            Copper sulphate test

c)            Footners Duplex test

d)            Hegman Grind test

 

206.        The test for detecting soluble chloride salts?

a)            The silver Nitrate Test

b)            The Copper Sulphate Test

c)            Ford Flow cup test

d)            The ultra violet test

 

207.        Which of the following is not a test for contaminants?

a)            Silver Nitrate Test

b)            Gold leaf test

c)            Copper sulphate test

d)            Powdered chalk or Talcum powder test

 

208.        Which one is not quantitative test?

a)            Silver nitrate test

b)            Dolly test

c)            Bresle sample patch test

d)            Banana gauge test

 

209.        ___________ can be used to detect the presence of oil or grease

a)            Copper sulphate

b)            Transparent Sticking Paper

c)            UV Light

d)            Bresle Sample Patch

 

210.        Colour of Mill scale

a)            Dark Blue

b)            Dark Grey

c)            Black

d)            No Colour

 

211.        Colour of Blasted Steel

a)            Dark Blue

b)            Dark Grey

c)            Black

d)            No Colour

 

212.        Which test are measure the resistivity and conductivity?

a)            Bresle sample patch

b)            Salt contamination meters

c)            The potassium hexa-cyanoferrate test

d)            The wolf will born Test

 

213.        Which test cannot detect hygroscopic salts?

a)            Potassiumferricyanide

b)            Silver nitrate

c)            Bresle sample patch

d)            Copper Sulphate


214.        Which of the following is a quantitative test to detect chloride salts?

a)            Silver nitrate test

b)            Potassium test

c)            Bresle Sample test

d)            All of the above

 

215.        Which of the following test to use marine environment?

a)            Silver nitrate test

b)            Potassium test

c)            Bresle Sample test

d)            copper sulphate test

 

216.        Test to find out the presence of Mill scale in SA 3 finish?

a)            Silver nitrate test

b)            Merkoquant test

c)            Bresle sample test

d)            Copper sulphate solution

 

217.        The test for soluble iron salts (ferrous) is important because

a)            these salts may be present because of active corrosion cells.

b)            these salts may be present because of improper manufacturing procedures at the steel rolling       mill.

c)            these salts will mix with the coating and improve adhesion.

d)            these salts will leach out and create an acidic surface.

 

218.        Which of the following are quantitative test?

a)            PotassiumHexa-cyanoferrate

b)            Copper sulphate

c)            Silver Nitrate Test

d)            Bresle Sample Patch

 

219.        Which of the following is not a test for contaminants?

a)            Sellotape

b)            Banana gauge

c)            Talcum Powder

d)            Solvent

 

220.        Why a painting inspector keep potassium ferry cyanide solution

a)            For checking mill scale

b)            For checking hygroscopic salts

c)            For detecting oil and grease

d)            For pickling process

 

221.        Mill scale test done, which Blast grade is

a)            Sa1

b)            Sa2 and Above

c)            Sa2½ and Above

d)            Sa3

 

222.        ___________ can be used to detect the presence of moisture

a)            Copper sulphate solution

b)            Transparent Sticking Paper

c)            UV Light

d)            Talc powder

 

223.        What type of test is used in photographic developer?

a)            Potassium hexa-cyanoferrate test

b)            Copper sulphate test

c)            Silver nitrate test

d)            Merkoquant test

 

224.        The text for detecting soluble sulphates and chloride salts on the steel substrate is

a)            The Xylene salt solution

b)            The copper sulphate solution

c)            The potassiumhexa-cyanoferrate test

d)            The wolf Wilborn Test

 

225.        A barrier type paint system, must be capable of providing?

a)            Good capacity

b)            Low permeability

c)            High permeability

d)            Low opacity

 

226.        Example for paint involving barrier principle

a)            Zinc rich epoxy

b)            Zinc or Aluminium

c)            Urethane

d)            Rust inhibitive primers

 

227.        Rust inhibitive primers operate by?

a)            Oxidation to protect the substrate

b)            Pigmentation

c)            Zinc phosphate

d)            Passivation

 

228.        Cathodic protection using pigmentation?

a)            Rust inhibitive primers

b)            Zinc in Zinc rich primers

c)            Zinc phosphate

d)            Urethane

 

229.        Paint is constructed of which 3 basic ingredients?

a)            Polymers, Epoxy, and Colourant

b)            Natural Oils, Dyes and Hardeners

c)            Oil, Color and extenders

d)            Binder, Solvent, Pigments & other Additives

 

230.        Which term is not relate with binder

a)            VOC

b)            Film former

c)            Vehicle

d)            Non volatile


Comments

Post a Comment

Popular posts from this blog

BGAS Grade 2/3 Model Multiple Choice question & answers - Part 3

-
Image
  51. Atom acquire the electric charged are a) Atomisation  b) Solaration c)  Polarisation d) Electromation   52. The British standard for preparation of steel substrate?  a) BS 3900  b) IGE SR 21  c)  BS 7079   d) ISO 8501    53. The two factors to consider when inspecting a surface preparation  a) Degree of cleanliness and time taken  b) Surface profile and material condition  c)  Surface profile and degree of cleanliness   d) Dependent upon the material thickness    54. Which is not a surface preparation cleaning methods in before paint application?  a) Dry abrasive blast cleaning  b) Hand and power tool leaning  c) Flame cleaning  d)  Light blast cleaning    55. Which pressure suitable for dry blasting?  a) 20psi  b)  100psi (Pounds per Square Inch)  (1 Psi = 6.89 kPa = 0.068 Bar) c) 220psi  d) 450psi    56. When using a Vent...
Read more

Holiday detection on Painted or Coated Surface

-
Holiday detection on Painted or Coated Surface A coating must be applied as a continuous film to perform its intended function. Early failure will occur if there is a discontinuity—a holiday, as it is commonly called—such as a pinhole, void, crack, thin spot, foreign inclusion, or contaminant in the coating film. Many of these defects are not readily visible, but they can be located using holiday detection equipment. Discontinuity: A void, crack, thin spot, foreign material inclusion, or contamination in the coating film that significantly lowers the electrical resistance of the coating. May also be identified as a holiday or pinhole. Holiday Defects characterized by a film having areas of insufficient thickness, even to the point where parts of the surface may remain uncoated. Holiday Detector: A device that locates discontinuities in a coating film applied to a conductive substrate. Pinhole The formation of minute hole in the wet film or drying due the burst of gases or...
Read more

BGAS Grade 2/3 Model Multiple Choice question & answers - Part 1

-
Image
1.  Corrosion is defined as : a) Rusting of Cathode b) Oxidation of iron in contact with water c)  Degradation of a material by chemical or electrochemical means d) Break down of metal by hydrogen   2. What is an electrolyte? a) It is a mixture of Salts and water b) A substance which will conduct electricity and cause rusting c) Oxidation liquid which will attack steel d)  A substance which will conduct a current and be broken down by it.   3. The degradation of material by chemical or electrochemical means is: a) Pickling followed by passivation b) Acid cleaning c)  Corrosion d) An Electrolyte   4. Is the electrical circuit in a corrosion reaction? a) AC b)  DC c) Negative charge d) Positive Charge   5. Hydrogen is evolved at a) The anode at all times b) The cathode at all times c)  The cathode as a by-product of the corrosion reaction d) The anode as corrosion takes place   6. Positively charged area  a)  Anode b) Cathod...
Read more