Chapter 9 · MCQ Read Mode

Engineering Survey

The survey stage whose purpose is to transfer the designed centre line, levels and grades onto the ground is the:

The fundamental principle that control should be established over the whole area before any detail is surveyed is stated as:

Balancing the backsight and foresight distances in differential levelling principally eliminates:

A permissible misclosure of 12 root K millimetres, with K in kilometres, applies to:

Which type of traverse should never be used as a control framework for an engineering project?

The feasibility (detailed) survey of a road project is primarily intended to provide:

Benchmarks for a construction project should be located:

A project grid is sometimes defined with a scale factor of unity at the mean project height in order to:

In Nepal, plane coordinates for engineering projects are traditionally referred to:

Which of the following is NOT an objective of engineering survey?

An angular misclosure limit expressed as c root n seconds in a traverse depends on:

The survey stage that compares alternative alignments before a final route is chosen is the:

For a control traverse serving a major bridge, a relative precision of 1:25,000 rather than 1:10,000 is specified because:

An echo sounder records a two-way travel time of 0.02 s in water where the speed of sound is 1,500 m/s. The depth is:

In the two-point method of current-meter gauging, velocity observations are taken at depths of:

Which instrument measures a profile of water velocity using the Doppler shift of sound backscattered from particles in the flow?

River cross-sections for design purposes must be taken:

The relationship between gauge height and discharge at a gauging station is called the:

Which project component fixes the net head of a hydropower scheme at its lower end?

The essential difference between a dam and a weir is that a weir:

Setting out a bridge pier standing in deep water is best done by:

Soundings taken over several hours in a river must be reduced to a common datum by using:

The float method of discharge measurement is regarded as approximate mainly because:

Dilution (salt-tracer) gauging is particularly suitable for:

The elevation-area-capacity curve of a reservoir is derived from:

In the formula P = rho g Q H eta, the two quantities supplied directly by survey work are:

Which instrument is used underground to determine true north independently of the surface network?

The Weisbach triangle is used in underground surveying to:

Survey stations in a tunnel are normally fixed in the roof rather than on the floor because:

Excavation beyond the designed tunnel profile is termed:

When transferring level down a shaft with a suspended steel tape, which correction is specific to this operation?

In a long tunnel driven from both ends, the breakthrough error component that is most critical and is governed chiefly by azimuth error is the:

Convergence measurement in a tunnel is used principally to:

Convergence readings that decelerate and level off with time indicate that:

In electrical resistivity tomography, apparent resistivity is computed as:

Increasing the separation of the electrodes in a resistivity survey results in:

A zone of markedly low resistivity detected along a proposed tunnel alignment most likely indicates:

Which array is generally preferred when good lateral resolution of vertical structures such as fracture zones is required?

The accuracy of the breakthrough between two tunnel headings depends most strongly on:

For a simple circular curve, the tangent length is given by:

A circular curve of radius 300 m has a deflection angle of 60 degrees. Its length is:

If the chainage of the point of intersection is 1,250 m and the tangent length is 80 m with a curve length of 150 m, the chainage of the point of tangency (T2) is:

In Rankine's method of setting out a curve by deflection angles, the arithmetic check at the end is that:

The degree of a curve on a 30 m arc basis is 4 degrees. Its radius is approximately:

The principal purpose of a transition curve is to:

In a clothoid transition curve, the product of radius and length along the curve is:

The shift of a circular curve to accommodate a transition of length Ls is:

Superelevation for highways is computed from the relation:

Full superelevation on a road curve provided with transitions should be attained:

Vertical curves used on roads and railways are normally:

A summit vertical curve joins a grade of +3 % to a grade of -2 %. The algebraic grade difference A is:

The length of a sag vertical curve at night is usually governed by:

The part of a building that transfers the load to the soil is the:

Which foundation type would be adopted where the good bearing stratum lies at a considerable depth?

The essential functional difference between a dam and a weir is that a weir:

The most critical element for the safety of a dam during a flood is the:

In a flexible road pavement the layer immediately below the surface course is the:

Setting out (stakeout) differs from ordinary surveying in that it:

The squareness of a rectangular building set out on the ground is most simply checked by:

A sight rail used with a boning rod in trench excavation provides:

Piers of a bridge standing in a wide river are best set out by:

Slope (batter) stakes are set to mark the:

Which principle should always be observed when setting out a structure?

Neglecting the scale factor between grid and ground distances during setting out on a national projection will cause:

Nepal's hydropower projects are predominantly of which type?

Simpson's one-third rule for the area of a figure bounded by offsets can be applied only when:

Compared with the prismoidal formula, the average end-area formula generally:

In the prismoidal formula V = (L/6)(A1 + 4Am + A2), the mid-area Am is:

On a mass haul diagram, a portion of the curve that is rising indicates that the section is in:

A maximum (peak) on a mass haul curve corresponds on the ground to:

The area enclosed between the mass haul curve and a balancing line represents:

If the mass haul curve lies above the balancing line, the direction of haul is:

The volume of material transported beyond the free-haul distance is called:

Excavated soil occupying a greater volume in the loose state than in situ is described as:

The unit weight of a 16 mm reinforcement bar, using the standard formula, is approximately:

To compute the area of a closed traverse from the coordinates of its corners, the appropriate method is:

For one cubic metre of 1:2:4 nominal mix concrete, the quantity of cement is about:

The estimate prepared item by item from the drawings and priced at analysed rates, forming the basis of the bill of quantities, is the: