KSRTC Assistant Engineer Previous Questions & Answers – 1 to 20
Question 1: The terminal velocity of a small sphere settling in a viscous fluid varies as the: (a) Inverse square of diameter (b) Inverse of diameter (c) First power of its diameter (d) Inverse of fluid viscosity Ans: (d) Inverse of fluid viscosity Question 2: A cement bag contains 0.035 cubic meters of cement by volume. How many bags will one tonne of cement comprise? (a) 16 (b) 17 (c) 18 (d) 20 Ans: (d) 20 Question 3: Efflorescence of bricks is due to (a) Soluble salts present in clay for making bricks (b) High porosity of bricks (c) High salt content in the soil used (d) Excessive burning of bricks Ans: (a) Soluble salts present in clay for making bricks Question 4: Which of the following constituent in the earth gives plasticity to mould bricks in suitable shape? (a) Silica (b) Lime (c) Alumina (d) Magnesia Ans: (c) Alumina Question 5: The compound which contributes the highest share of the heat of hydration of cement is: (a) Tricalcium Silicate (b) Tricalcium Aluminate (c) Gypsum (d) Combined lime Ans: (b) Tricalcium Aluminate Question 6: Putty is made up of: (a) White lead and turpentine (b) Powdered chalk and raw linseed oil (c) Red led and linseed (d) Zinc oxide and boiled linseed oil Ans: (b) Powdered chalk and raw linseed oil Question 7: In making concrete, maximum density is achieved by, (a) Using sufficient cement to fill all the voids (b) Controlling the particle size of the ingredient (c) Controlling the particle size distribution of the ingredient (d) Reducing the quantity of mixing water Ans: (c) Controlling the particle size distribution of the ingredient Question 8: Which one of the following is not a vehicle in paints? (a) Nut oil (b) Poppy oil (c) Tung oil (d) Turpentine oil Ans: (d) Turpentine oil Question 9: In high tensile steel carbon should be less than (a) 0.10 % (b) 0.15 % (c) 0.70 % (d) 1.5 % Ans: (b) 0.15 % Question 10: The head room for a staircase should not be less than: (a) 3.50 m (b) 3 m (c) 2.10 m (d) 2 m Ans: (c) 2.10 m Question 11: The ratio of cement mortar preferred in load bearing walls in brick masonry is: (a) 1:2 (b) 1:6 (c) 1:8 (d) 1:12 Ans: (b) 1:6 Question 12: A curtain wall carries: (a) Wind load (b) Self weight (c) Roof load (d) No load Ans: (b) Self-weight Question 13: In ordinary residential and public buildings, the DPC is provided at: (a) Plinth level (b) Ground level (c) Roof level (d) Lintel level Ans: (a) Plinth level Question 14: Laterite is a (a) Argillaceous rock (b) Siliceous rock (c) Calcareous rock (d) Magma Ans: (a) Argillaceous rock Question 15: Marble is (a) Igneous rock (b) Metamorphic rock (c) Stratified rock (d) Sedimentary rock Ans: (b) Metamorphic rock Question 16: In any case, the bearing of lintel should not be less than (a) 100 mm (b) 150 mm (c) 200 mm (d) 300 mm Ans: (b) 150 mm Question 17: The resultant of two equal forces(F) acting in opposite directions will be (a) 2 F (b) √2 F (c) 0.707 F (d) Zero Ans: (d) Zero Question 18: The set of forces, whose resultant is zero, are known as: (a) equilibrium forces (b) collinear forces (c) coplanar forces (d) concurrent forces Ans: (a) equilibrium forces Question 19: The centre of gravity of a plane lamina is not at its geometrical centre if it is a: (a) Circle (b) Square (c) Rectangle (d) Right angled triangle Ans: (d) Right-angled triangle Question 20: A system of coplanar forces is in equilibrium when: (a) force polygon closes (b) funicular polygon closes (c) both force and funicular polygon closes (d) all the forces are coplanar concurrent Ans: (c) both force and funicular polygon closes
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