Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The process of mixing clay, water and other ingredients to make brick is called:
A)
Moulding
B)
Tempering
C)
Pugging
D)
blending
Tempering is the process of mixing and kneading clay with water and other ingredients.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The lime suitable for making mortar is:
A)
quick lime
B)
fat lime
C)
hydraulic lime
D)
pure lime
Hydraulic lime is suitable for mortar because it can set and harden even in damp conditions.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The standard size of a brick is:
A)
20 × 10 × 10 cm
B)
19 × 9 × 9 cm
C)
18 × 9 × 9 cm
D)
18 × 8 × 8 cm
The standard modular brick size is 19 × 9 × 9 cm.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The permissible bending tensile stress in concrete for the vertical wall of an RC water tank made of M25 concrete is:
A)
8.5 N/mm2
B)
6.0 N/mm2
C)
4.5 N/mm2
D)
1.8 N/mm2
The correct choice is D: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Plywood is specified by:
A)
numbers of layers
B)
volume
C)
weight
D)
thickness
Plywood is commonly specified by thickness along with grade and construction.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Defect caused by shrinkage in timber is:
A)
Twist
B)
Crook
C)
Cup and blow
D)
All of these
Shrinkage can produce twist, crook, and cupping/blowing-type defects in timber.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Seasoning of timber is necessary to:
A)
increase the fire resistant
B)
reduced the microbial substance
C)
increase the vermin resistant
D)
expel the moisture present in the timber
Seasoning primarily removes excess moisture from green timber.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
In a continuous bending moment curve the point where it changes sign, is called:
A)
point of inflexion
B)
point of contraflexture
C)
point of virtual hinge
D)
all the above
The correct choice is B: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Setting time of cement can be increases by adding:
A)
Gypsum
B)
Calcium chloride
C)
Calcium sulphate
D)
None of these
Gypsum is added to cement to retard setting and thereby increase the setting time.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Every material obeys the Hooke’s law within its:
A)
elastic limit
B)
plastic point
C)
limit of proportionality
D)
none of these
Strictly, stress is proportional to strain only up to the limit of proportionality.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Finer the cement, more is the:
A)
early strength
B)
workability
C)
shrinkage cracking
D)
all of these
Greater cement fineness increases the rate of hydration and hence early strength.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The initial setting of cement is caused by formation of:
A)
tricalcium aluminate
B)
tricalcium silicate
C)
tetracalcium aluminate
D)
diacalcium silicate
Tricalcium aluminate reacts rapidly with water and contributes strongly to initial setting.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The property of material by which it can be drawn to smaller section, due to tension, is called:
A)
Plasticity
B)
Elasticity
C)
Ductility
D)
Malleability
Ductility is the ability to undergo tensile drawing into wires or smaller sections.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The maximum deflection of a simply supported beam of length L with a central load W, is:
A)
WL2 / 48EI
B)
W2L / 24EI
C)
WL3 / 48EI
D)
WL2 / 8EI
The correct choice is C: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
For a stable frame structure, number of members required, is:
A)
three times the number of joints minus three
B)
twice the number of joints minus three
C)
twice the number of joints minus two
D)
twice the number of joints minus one
The correct choice is B: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The moisture content in well-seasoned timber is:
A)
0 to 10%
B)
15 to 20 %
C)
10 to 12 %
D)
20 to 25%
Well-seasoned timber commonly has moisture content around 15–20% for general construction.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called:
A)
Slate
B)
Plank
C)
Board
D)
Strip
A board is a relatively thin piece of sawn timber; 5 cm thick and 10 cm wide fits the usual board classification.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Good brick should contain about:
A)
20 – 30 % Alumina
B)
25- 35 % Alumina
C)
50 – 60 % Alumina
D)
55 – 65 % Alumina
The correct choice is A: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
Tensile strength of concrete is measured by:
A)
applying third point load on a prism
B)
applying the tensile load along the diameter of cylinder
C)
applying the compression load along the diameter of cylinder
D)
direct tension test in Universal Testing machine (UTM)
The correct choice is B: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The advantages of reinforced concrete is due to:
A)
monolithic character
B)
fire resisting and ductility
C)
moulding in any desirable shape
D)
all of these
The correct choice is D: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
In a singly reinforce beam, if the permissible stress in concrete reaches earlier than that of steel, the beam section is called:
A)
under-reinforced section
B)
over reinforced section
C)
economic section
D)
critical section
The correct choice is B: this follows from standard civil-engineering surveying/structural/concrete principles for the stated condition.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
For one cubic metre of brick masonry, the number of bricks required is:
A)
400
B)
500
C)
5000
D)
4500
About 500 standard bricks are required per cubic metre of brick masonry.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
The setting and hardening of cement after the addition of water occurs due to:
A)
binding action of water
B)
evaporation of water
C)
hydration and hydrolysis of same constituent compounds of cement which act as glue
D)
none of the above
Cement sets and hardens mainly through hydration reactions of its constituent compounds.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-III
For rapid hardening cement:
A)
gypsum is not added
B)
is subjected to large shrinkage cracks
C)
has 1 day strength same as that of 3 days strength of OPC
D)
all of these
Rapid-hardening cement develops high early strength, roughly equivalent to several-day OPC strength in one day; the best option is the early-strength statement.
Assistant Soil Conservation Engineer • 2021 • Agricultural Engineering Paper-II
A plot of rainfall intensity versus time is called:
A)
Hydrograph
B)
Man curve
C)
Hyetograph
D)
Isohyet
A hyetograph plots precipitation intensity against time.
