Quiz: Civil Engineering
Each question carries 1 mark
Negative marking: 1/4 mark
Time: 10 Minutes
Q1. Which part of the tree consists of mainly cellular tissues?
(a) cambium layer
(c) heart wood
Q2. The initial setting time for quick cement is
(a) 5 seconds
(b) 5 minutes
(c) 5 hours
(d) 5 days
Q3. Which of the following materials has the highest carbon percentage?
(a) Cast iron
(b) Mild steel
(c) High carbon steel
(d) Stainless steel
Q4. A stretcher bonds is usually used for
(a) half brick wall
(b) one brick wall
(c) one and half brick wall
(d) two brick wall
Q5. The best method of interpolation of contours in indirect method of contouring is by
Q6. Bentonite is a material obtained due to the weathering of
(c) volcanic ash
Q7. A soil has bulk density of 22 kN/m³ and water content 10%. The dry density is
(a) 20 kN/m³
(b) 15 kN/m³
(c) 18 kN/m³
(d) 19 kN/m³
Q8. The principle involved in the relation γ_(sub.) 〖=γ〗_(sat.)-γ_w is
(a) Stoke’s law
(b) Darcy’s law
(c) Archimede’s principle
(d) Poiseuille’s law
Q9. Inorganic soil with low compressibility are represented by
Q10. The standard turbidity produced by one mg of silicon dioxide (silica) in one litre of distilled water, is called
(a) One Jackson turbidity unit (JTU)
(b) one Formazine turbidity unit (FTU)
(c) one Nephelometry turbidity unit (NTU)
(d) None of the above
Sol. Pith consist mainly cellular tissue. It is the central portion of the tree. It is also known as medulla.
Sol. the initial setting time and final setting time for quick settling cement is 5 min. and 30 min respectively. it is produced by adding aluminium sulphate in very fine powdered form.
|Type of steel||Carbon percentage|
|Cast iron||2.0 – 4.0%|
|Steel||0.1 – 0.25%|
|Wrought iron (purest form of iron)||< 0.1 %|
If carbon content (%) is higher, then the material will be more brittle and lesser will lead to ductile material.
Sol. stretcher bond is the arrangement of bonding in which bricks are laid along the length in each case. These bonds provide half brick wall thickness or 4.5 inches wall or 115 mm wall.
Sol. Computation is the best method of interpolation of contours in indirect method of contouring.
Sol. Bentonite is obtained due to the weathering of volcanic ash containing high percentage of clay mineral and montmorillonite.
▭(γ_d=20 kN\/m^3 )
Sol. when the soil exists below water then it is in a submerged condition and Archimedes principle involved in the relation –
γ_sub=submerged unit weight
γ_sat=Saturated unit weight
γ_w=unit weight of water
Sol. fine grain soil classification according to compressibility –
|Intermediate compressible||35%< W_L<50%||I|
In ML = inorganic silt with low compressibility
Sol. the standard turbidity is produced by one mg. of silica as silicon dioxide (SiO_2 ) is added to 1l. of pure water to make the standard turbid solution is called one Jackson turbidity unit (JTU)