Kerala Public Service Commission Third Grade Overseer/ Draftsman Paper 2016
Box of prismatic compass is made of
(a) Copper
(b) Nickel
(c) Brass
(d) None of these
The specific gravity of stone should not in any case less than
(a) 2.5
(b) 2.0
(c) 1.5
(d) 1.0
The rocks which are deposited in layers and can be easily split along such layers is known as
(a) aqueous rock
(b) sedimentary rock
(c) metamorphic rock
(d) basalt
The extend of land that gets irrigated from a water source is
(a) duty
(b) delta
(c) ayacut
(d) furrouts
The preferable slope of a drawing board support is
(a) 1 : 2
(b) 1 : 4
(c) 1 : 6
(d) 1 :8
Laterite is chemically classified as
(a) Calcareous rock
(b) Argillaceous rock
(c) Siliceous rock
(d) None of the above
The percentage of silica in good brick clay should vary from
(a) 50 to 60%
(b) 40 to 50%
(c) 30 to 40%
(d) 20 to 30%
The dressing of stone is done
(a) Immediately after quarrying
(b) After seasoning
(c) After three months of quarrying
(d) Just before building
What general name is given to the physical parts of computer ?
(a) Software
(b) Firmware
(c) Hardware
(d) Device drivers
Which of the following is hardest rock ?
(a) marble
(b) diamond
(c) tale
(d) quarts
Quick lime is a
(a) Product left immediately after the calcinations of pure lime stone
(b) Carbonate of lime
(c) oxide of lime
(d) Lime quickly treated with water
A good quality cement should have higher percentage of
(a) Silica
(b) Free lime
(c) Di calcium silicate
(d) Tri calcium silicate
In a flat arch, the skew back is made to rest in an inclined position so as to make an angle of _________with springing line.
(a) 30 degree
(b) 60 degree
(c) 50 degree
(d) 40 degree
The lowest part of a structure which transmits the load to the soil is known as
(a) Super structure
(b) Plinth
(c) Foundation
(d) Basement
The compressive strength of good Portland cement and standards and mortar after 3 days of curing should not be less than
(a) 17.5 mN/ meter sq.
(b) 7 mN/ meter sq.
(c) 21 mN/ meter sq.
(d) 11.5 mN/meter
The percentage of residue left after sieving good Portland cement in 90 micron sieve should not exceed
(a) 20%
(b) 55%
(c) 30%
(d) 10%
What is the number of traditional brick required for 10 cubic meter of brick work with standard thickness of cement mortar 1:3 to 1:5?
(a) 4750
(b) 4850
(c) 4950
(d) 5050
The moisture content of timber used in building frames can be
(a) 2% to 5%
(b) 8% to 12%
(c) 12% to 18%
(d) >20%
The length of a ranging rod is
(a) 2 to 4 meters
(b) 2 to 3 meters
(c) 3 to 4 meters
(d) 2 to 2.5 metrs
The durability of concrete is proportional to
(a) Sand content
(b) Water cement ratio
(c) Aggregate water ratio
(d) Cement aggregate ratio
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