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51.	_________________ is most common material used as a vehicle of a paint.(a) Nut oil(b) Poppy oil(c) Linseed oil(d) Tung oilThis question was posed to me by my college director while I was bunking the class.I want to ask this question from Ingredients of an Oil Borne Paint topic in chapter Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» RIGHT answer is (c) Linseed oil To elaborate: Linseed oil is EXTRACTED from flax SEEDS. The linseed oil prepared from fine full grown ripe seeds is clear and transparent, pale, sweet to the taste and particularly odourless. It is USED in various grades.

52.	___________________ is the most reactive of drier metals and is generally regarded as a surface drier.(a) Litharge(b) Cobalt(c) Red lead(d) MagnesiumI have been asked this question during an online exam.I'd like to ask this question from Types of Paints topic in section Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» Right choice is (b) Cobalt Explanation: Cobalt is widely used as the only additive in thin film paint formulations. Lead is less reactive than Cobalt has increasing RESTRICTIONS in its APPLICATION because of ECOLOGICAL REQUIREMENTS. Numerous of other metals, including cerium and vanadium, have been used occasionally and are effective DRIERS.

53.	____________________ contains white lead, zinc white, oil, Petroleum spirit and resinous matter.(a) Graphite paint(b) Inodorous paint(c) Enamel paint(d) Luminous paintI got this question in my homework.I'm obligated to ask this question of Types of Paints in section Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The correct choice is (c) Enamel paint Explanation: Enamel paint DRIES slowly and forms hard and durable surface. The surfaces provided with this paint is not affected by ACIDS, Alkaline, fumes of GAS, hot and COLD water, steam, etc. It can be used for both internal and external WALLS.

54.	________________ is a mixture of zinc sulphide and barites.(a) Antimony white(b) Titanium white(c) White lead(d) LithoponeThe question was asked in semester exam.Origin of the question is Ingredients of an Oil Borne Paint topic in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» Right choice is (d) Lithopone Explanation: Lithopone is cheap and it can easily be applied on the surface. It is similar in appearance to oxide of ZINC. However, when exposed to DAYLIGHT, it changes colour. Hence it is USED for interior work of INFERIOR NATURE.

55.	The formation of soap patches on the painted surface is termed as the ___________(a) Wrinkling(b) Running(c) Sagging(d) SaponificationI have been asked this question during an interview.The origin of the question is Defects in Painting topic in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» Correct ANSWER is (d) Saponification Easiest explanation: Saponification is due to the CHEMICAL action of ALKALINE. When a HORIZONTAL surface is too thickly painted , the defect of WRINKLING becomes prominent.

56.	_____________________ substances accelerate the process of drying.(a) Solvent(b) Distemper(c) Drier(d) BaseI have been asked this question in an online interview.This intriguing question comes from Types of Paints topic in chapter Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The correct option is (C) Drier The BEST EXPLANATION: A drier absorbs oxygen from the air and transfer it to the linseed oil, which in turn, GETS hardened. They may be EITHER in the form of soluble driers or paste driers.

57.	______________________ essentially consist of oil and stronger drier.(a) Asbestos paint(b) Cellulose paint(c) Cement paint(d) Anti-corrosive paintI have been asked this question in a job interview.I'm obligated to ask this question of Types of Paints in chapter Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» Correct option is (d) Anti-corrosive paint To EXPLAIN I would say: A pigment such as CHROMIUM oxide or lead or red lead or zinc chrome is TAKEN and after mixing it with some quantity of very FINE sand, it is added to the anti corrosive paint. The advantages of anti corrosive paint are: it is cheap and it last for LONG duration.

58.	____________________ is an oxide of lead and it forms the base of lead Paints.(a) Red Lead(b) White lead(c) Antimony white(d) Titanium whiteThe question was asked in an online interview.This interesting question is from Ingredients of an Oil Borne Paint in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The CORRECT answer is (a) Red LEAD Explanation: Red lead is QUITE suitable for painting iron surfaces and for providing of priming coat to the WOOD surfaces. It SOLIDIFIES in a short time with linseed oil and hence it is used as a drier also.

59.	In ________________ defect, the formation of dull patches occurs on the finished polished surface.(a) Flaking(b) Bloom(c) Fading(d) FlashingI got this question in a job interview.I'm obligated to ask this question of Defects in Painting topic in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The CORRECT option is (B) Bloom The explanation: Bloom is due to the DEFECT in PAINT or bad VENTILATION. Whereas, the gradual loss of colour is known as the Fading and it is mainly due to the effect of Sunlight on the pigment of paint.

60.	______________________ contains binding material such as polyvinyl Acetate, synthetic resins, etc.(a) Colloidal paint(b) Emulsion paint(c) Enamel paint(d) Graphite paintI have been asked this question in an interview.My question is based upon Types of Paints in section Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The correct answer is (b) EMULSION PAINT Explanation: Emulsion paint is easy to apply and it DRIVES quickly about 1 to 2 hours. The COLOUR of paint is retained for a long period and the surface of paint is tough and it can be cleaned by washing with water.

61.	The __________________ is inflammable, evaporates rapidly and dries the oil consequently.(a) Distemper(b) Turpentine(c) Linseed oil(d) LithargeThe question was asked in unit test.I would like to ask this question from Types of Paints topic in division Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» RIGHT answer is (b) Turpentine The best I can explain: The use of a Turpentine in PAINT reduces the PROTECTIVE value of the coating, flattens colours and lessons the gloss of the linseed oil as the SPIRIT EVAPORATES leaving an excess of colour not mixing with the oil.

62.	________________ is thicker and darkly coloured and raw linseed oil.(a) Nut oil(b) Boiled linseed oil(c) Pale boiled linseed oil(d) Raw linseed oilThe question was posed to me during an interview for a job.My question is from Ingredients of an Oil Borne Paint in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» Correct OPTION is (b) Boiled linseed oil Easiest EXPLANATION: Boiled linseed oil is PREPARED by adding some quantity of dryer such as litharge or red lead to the raw oil. It cannot be used for interior DELICATE work. It is used for exterior SURFACES.