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Browse complete papersTwo pipes of length L and diameters D and 2D are connected in parallel. If the flow is laminar and the pressure drop is the same, the ratio of discharges \( Q_{2D}/Q_D \) is:
2
4
8
16
Correct answer
2
In turbulent flow through a rough pipe, the friction factor f is a function of:
Reynolds number only
Surface tension and Reynolds number
Relative roughness only
Both Reynolds number and relative roughness
Correct answer
Reynolds number only
What is the power transmission efficiency of a pipeline if the head loss due to friction is \( \frac{1}{4} \) of the total head supplied at the inlet?
25%
33.3%
75%
66.6%
Correct answer
25%
Three pipes are in series. The total head loss is 20 m. If the friction factors and lengths are identical, but the diameters are D, 2D, and 3D, which pipe contributes most to the head loss?
Pipe with diameter D
Pipe with diameter 2D
Pipe with diameter 3D
All contribute equally
Correct answer
Pipe with diameter D
Which road sign is the only regulatory category sign that is octagonal?
Give Way
Speed Limit
STOP Sign
No Parking
Correct answer
Give Way
In accident studies, the "Severity Index" is calculated as:
(Total Accidents / Total Population)x1000
(Fatal Accidents / Total Accidents) x 100
(Total Injuries / Total Vehicles)
(Property Damage / Total Accidents)
Correct answer
(Total Accidents / Total Population)x1000
What is the primary function of a "Divisional Island" on a high-speed highway?
To eliminate all merging conflicts.
To prevent head-on collisions by separating opposing traffic streams.
To provide a space for illegal U-turns.
To reduce the number of traffic signals required.
Correct answer
To eliminate all merging conflicts.
As per IRC guidelines, the "PCU" value for an Auto-rickshaw in India, is typically:
0.5
1.0
1.5
2.0
Correct answer
0.5
What is the minimum permissible compressive strength for a common burnt clay brick to be considered suitable for structural masonry under standard building codes?
3.5 \( N/mm^{2} \)
7 \( N/mm^{2} \)
10 \( N/mm^{2} \)
12.5 \( N/mm^{2} \)
Correct answer
3.5 \( N/mm^{2} \)
Under the classification provided by IS 712 : 1984, which category of building lime is specifically identified as Fat Lime and recommended for the final finishing coat in plastering and whitewashing?
Class A
Class B
Class C
Class F
Correct answer
Class A