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Browse complete papersWhich of the following is a systematic error that can be eliminated by applying corrections?
Instrumental error
Personal error
Accidental error
Random error
Correct answer
Instrumental error
Why are signals and towers primarily used in a triangulation survey?
For ensuring line of sight over long distances and obstacles
For increasing the strength of the triangle
For weather monitoring
For enhancing signal reception
Correct answer
For ensuring line of sight over long distances and obstacles
If the fore bearing and back bearing of a line differ by more or less than 180°, it indicates which of the following?
Compass is defective
Local attraction is present
Magnetic dip is high
Sighting was incorrect
Correct answer
Compass is defective
Why is a transition curve necessary between a straight and a circular curve?
To increase vehicle speed suddenly
To adjust for road widening
To satisfy requirements like gradual curvature, super elevation and comfort
To create sharp turns
Correct answer
To increase vehicle speed suddenly
Which assumption is made in one-dimensional flow analysis?
Flow properties change only along a single spatial coordinate.
Velocity remains constant in one direction but varies in others
The flow is governed by one fundamental conservation equation only
There is only one possible flow regime (either laminar or turbulent)
Correct answer
Flow properties change only along a single spatial coordinate.
According to the momentum principle, the impact force of a jet is independent of the:
velocity of the jet
density of the fluid
cross-sectional area of the jet
atmospheric pressure
Correct answer
velocity of the jet
Why is the velocity distribution coefficient important in open channel hydraulics?
It helps in accurately computing energy and momentum fluxes.
It determines the slope of the channel bed.
It defines the maximum velocity in the channel.
It is used only for laminar flow calculations.
Correct answer
It helps in accurately computing energy and momentum fluxes.
The discharge equation for a broad-crested weir is derived using:
the energy equation and critical flow conditions
the momentum equation alone
the Darcy-Weisbach equation
the continuity equation only
Correct answer
the energy equation and critical flow conditions
Which type of Rotodynamic pump uses both axial and radial flow?
Mixed-flow pump
Centrifugal pump
Reciprocating pump
Vane pump
Correct answer
Mixed-flow pump
Which of the following best describes the behaviour of moderate viscosity fluids in pipelines?
High energy losses due to turbulence
No viscosity effects on flow
Combination of laminar and turbulent characteristics
Flow remains completely uniform throughout.
Correct answer
High energy losses due to turbulence