Rajasthan Polytechnic Third Year Paper 2016 – Repair and Maintenance of Civil Works

Rajasthan Polytechnic Third Year Paper 2016 – Repair and Maintenance of Civil Works

The durability of cement concrete is usually improved by
(a) Increasing the quantity of coarse sand
(b) Decreasing the water-cement ratio
(c) Increasing the quantity of cement
(d) Decreasing the proportion of fine aggregate

Which method is adopted for strengthening of weak foundation and to deepen the existing foundation of the wall?
(a) Shoring
(b) Under-pinning
(c) Scaffolding
(d) Form Work

Width of foundation is not governed by
(a) width of wall
(b) bearing capacity of soil
(c) height of plinth level
(d) total dead load

Unsafe building is called
(a) which is dangerous to human life to live in
(b) which is contructed on hill
(c) in which sufficient natural light arrangement are not proper
(d) flooring is damaged

What is efflorescence ?
(a) Formation of white patches on the brick surface due to insoluble salts
(b) Swelling of brick due to presence of carbonaceous matter and gas
(c) deformation of brick due to exposure to rain
(d) impurities seen after burning of brick

Plastering on the bottom of roof is called
(a) Stucco plaster
(b) lath plaster
(c) bottom plaster
(d) ceiling plaster

The surface on which distemper is applied
(a) brick wall
(b) concrete surface
(c) wooden partition wall
(d) interior plastered surface of wall

The task is done on wooden doors before applying new coat of paint
(a) old paint is removed by rubbing
(b) old paint is removed by rubbing
(c) oil is applied on old paint
(d) new paint is applied on old paint

Lime used in lime plaster is
(a) Slaked lime
(b) Fat lime
(c) Magnesium lime
(d) All of the above