Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Tradesman- Masonary' And exam conducted in the year 2023. And Question paper code was '078/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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In concrete after consolidation presence 5% voids, then how much strength reduces ?
A) 10% B) 50% C) 15% D) 30%
From the following which defect occur due to seasoning of timber ?
A) Twisted fibres B) Dry rot
C) Honey — combing D) Foxiness
What is the method of preservation of timber without using any preservatives ?
A) Charring B) Ascu treatment
C) Spraying D) Brushing
From the following which one is not an industrial timber ?
A) Veneers B) Scantling
C) Impreg Timbers D) Particle Board
From the following which one is the ferrous metal ?
A) Copper B) Bronze
C) Aluminium D) Wrought iron
is an alloy of copper and tin and minor percentage of other elements
except zinc may be added.
A) Brass B) Bronze C) Duralium D) Aldural
At what temperature Thermo setting plastic sets permanently ?
A) 127° to 177° B) 72° to 107°
C) 170° to 237° D) 237° to 297°
The vehicle or carrier of oil-borne paint is
A) Red lead B) Oxide of iron
C) Linseed oil D) Sulphate of manganese
Which Tar is obtained by distilling bituminous Shales ?
A) Coal Tar B) Mineral Tar
C) Wood Tar D) Cut back bitumen
What is the name of process in which the raw water is retained for some time quiescent
in a basin for the suspended particles are settled by the action of gravity ?
A) Filteration B) Chemical treatment
C) Aeration D) Plain sedimentation