7.The longest path in a network represents
Anonymous Quiz
4%
Free path
8%
Dummy path
79%
Critical path
9%
Independent path
π1
8.The main disadvantage of oxidation ditch is
Anonymous Quiz
7%
Low efficiency
11%
Skilled operation
71%
Large land requirement
12%
High power cost
9.Contour interval should be small for
Anonymous Quiz
13%
Flat terrain
54%
Steep terrain
23%
Hilly terrain
10%
Uniform slope
10.A beam is said to be prismatic when
Anonymous Quiz
4%
Depth varies
90%
Cross-section is constant
4%
Length varies
2%
Material changes
11.The modulus of elasticity of concrete depends mainly on
Anonymous Quiz
35%
Cement content
32%
Aggregate type
26%
Water content
7%
Curing method
12.Lag in CPM represents
Anonymous Quiz
2%
Idle time
8%
Overlap time
87%
Delay between activities
2%
Negative float
13.Chlorine demand is highest when water contains
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18%
Hardness
65%
Organic matter
3%
Colour
14%
Turbidity
14.Face left and face right observations in theodolite are taken to
Anonymous Quiz
2%
Increase speed
70%
Reduce instrumental errors
22%
Increase distance accuracy
6%
Avoid refraction
15.The bending moment at mid-span of a simply supported beam under central load is
Anonymous Quiz
15%
PL/2
54%
PL/4
30%
PL/8
1%
PL
π2
16.Sulphate attack in concrete causes
Anonymous Quiz
7%
Shrinkage
79%
Expansion and cracking
12%
Loss of alkalinity
2%
Increase in strength
β€1
17.Free float can never be
Anonymous Quiz
24%
Zero
31%
Negative
4%
Positive
41%
Equal to total float
18.UV disinfection is effective mainly against
Anonymous Quiz
82%
Bacteria and viruses
9%
Algae
6%
Worms
3%
Hardness
19.Temporary adjustment of a level includes
Anonymous Quiz
3%
Permanent focusing
46%
Plate bubble adjustment
45%
Leveling and focusing
5%
Calibration
20.The moment distribution method satisfies
Anonymous Quiz
6%
Equilibrium only
5%
Compatibility only
87%
Both equilibrium and compatibility
1%
Energy condition
1.The main purpose of adding gypsum to cement is to
Anonymous Quiz
11%
Increase strength
85%
Control setting time
4%
Increase fineness
1%
Improve colour
2.The cost slope in timeβcost optimization represents
Anonymous Quiz
6%
Direct cost
7%
Indirect cost
85%
Cost per unit time reduction
2%
Total cost
β€2
3.Groundwater mound formation occurs due to
Anonymous Quiz
18%
Over-pumping
33%
Excess recharge
45%
Impervious strata
5%
Low porosity
4.A back bearing of a line differs from fore bearing by
Anonymous Quiz
9%
90Β°
80%
180Β°
6%
270Β°
4%
360Β°
5.In a two-hinged arch, the degree of static indeterminacy is
Anonymous Quiz
30%
Zero
38%
One
22%
Two
10%
Three
6.Fibre-reinforced concrete improves
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4%
Workability
92%
Tensile strength and crack resistance
3%
Setting time
0%
Density