#### Electrical engineering

• ( 1 ) When (h) is the difference in heights between the extremities of a chain length (l), then the correction for slope required is

• 1) h / l
• 2) h2 / l
• 3) h2 / 2l
• 4) h / el
• Discussion in forum
Answer : 3) h2 / 2l
Solution : When (h) is the difference in heights between the extremities of a chain length (l), then the correction for slope required is h2 / 2l

discussion

Answer : 3) h2 / 2l

• ( 2 ) The instrument used for setting out an offset at a right angle, is called

• 1) open cross-staff
• 2) french cross-staff
• 4) optical square
• Discussion in forum
Solution : The instrument used for setting out an offset at a right angle, is called open cross-staff

discussion

• ( 3 ) The horizon glass in an optical square is

• 1) wholly silvered
• 2) wholly unsilvered
• 3) one-fourth silvered and three-fourth unsilvered
• 4) half silvered and half unsilvered
• Discussion in forum
Answer : 4) half silvered and half unsilvered
Solution : The horizon glass in an optical square is half silvered and half unsilvered

discussion

Answer : 4) half silvered and half unsilvered

• ( 4 ) The true or geographical meridiams through the various stations

• 1) are parallel
• 2) converge to the poles
• 3) converge from north pole to south pole
• 4) converge from south pole to north pole
• Discussion in forum
Answer : 2) converge to the poles
Solution : The true or geographic meridian is a line in which the plane passing through the given point and the north and south poles intersect the surface of earth.
- The direction of a true meridian is invariable. The true meridians through the various stations are not parallel, but converge to the poles.
- However, for ordinary small surveys, they are assumed to be parallel to each other.
- The horizontal angle between the true meridian and the line is called true bearing of a line. It is also known as Azimuth.

discussion

Answer : 2) converge to the poles

• ( 5 ) The correction for sag is

• 2) always subtractive
• 3) always zero
• 4) sometimes additive and sometimessubtractive
• Discussion in forum
Solution : When the tape sags between points of support, it takes the form of a catenary. The correction for sag Cs is always subtracted from observed distance and is given by Cs = W2L/24P2

discussion

• ( 6 ) The lines of earth's magnetic field run from

• 1) south to north
• 2) north to south
• 3) east to west
• 4) west to east
• Discussion in forum
Answer : 2) north to south
Solution : The lines of earth's magnetic field run from north to south

discussion

Answer : 2) north to south

• ( 7 ) The image formed by the objective in the plane of cross hairs is

• 1) real and straight
• 2) real and inverted
• 3) virtual and straight
• 4) virtual and inverted
• Discussion in forum
Answer : 2) real and inverted
Solution : The image formed by the objective in the plane of cross hairs is real and inverted

discussion

Answer : 2) real and inverted

• ( 8 ) The power of a telescope to form distinguishable images of objects separated by small angular distance is called its

• 1) definition
• 2) brightness
• 3) sensitivity
• 4) resolving power
• Discussion in forum
Solution : The power of a telescope to form distinguishable images of objects separated by small angular distance is called its resolving power

discussion

• ( 9 ) An angle measured clockwise from the proceeding survey line to the following survey line is called

• 1) direct angle
• 2) vertical angle
• 3) horizontal angle
• 4) deflection angle
• Discussion in forum
Solution : An angle measured clockwise from the proceeding survey line to the following survey line is called direct angle

discussion

• ( 10 ) The projection of a traverse line on a line perpendicular to the meridian is known as

• 1) latitude of the line
• 2) departure of the line
• 3) bearing of the line
• 4) co-ordinate of the line
• Discussion in forum
Answer : 2) departure of the line
Solution : The projection of a traverse line on a line perpendicular to the meridian is known as departure of the line

discussion

Answer : 2) departure of the line