What is Ghat Tracer?
What is Ghat Tracer?
Ghat Tracer – (SICSGHT-01) Cylon Ghat Tracer: A reliable instrument for setting out a grade contour, i.e. locating points on a given gradient in the preliminary survey of a hill, road and also for measuring the angle of slope complete in wooden box with target and pole.
Which minor instrument is used in surveying?
1. HAND LEVEL A hand level is a simple compact instrument used for reconnaissance and preliminary survey, for locating contours on the ground and for taking short cross sections. It consists of a rectangular or circular tube, 10 to 15 cm long, provided with a small bubble tube at the top.
What is clinometer used for?
An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity’s direction.
How do you use sextant box?
Uses of Box Sextant
- Box sextant can be used as an optical square by setting vernier to 90o.
- Box sextant can be used to measure angles in chain surveying.
- It is used to check the angles measured by other surveying instruments.
- Radiation in traversing can be done using box sextant.
What is a Pantagraph used for?
Pantographs are used for reducing or enlarging engineering drawings and maps and for guiding cutting tools over complex paths.
What is Abney level in surveying?
An Abney level and clinometer, is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. By using trigonometry the user of an Abney level can determine height, volume, and grade.
Which instrument is used to setting out right angle?
Optical squares
Optical squares are simple sighting instruments used to set out right angles. They can be provided either with mirrors or with one or two prisms. Because of practical difficulties in using squares with mirrors, they have been replaced by squares with prisms: “prismatic squares”.
How do you explain a clinometer?
A clinometer is a tool that is used to measure the angle of elevation, or angle from the ground, in a right – angled triangle. You can use a clinometer to measure the height of tall things that you can’t possibly reach to the top of, flag poles, buildings, trees.
What are the different types of clinometer?
Types of clinometers or inclinometers include angular clinometers, horizontal clinometers, protractor spirit inclinometers & protractor square inclinometers. Mechanical spirit levels are also available. Types of mechanical spirit levels include screw on, cross, precision & magnetic angular spirit levels.
What is the purpose of sextant?
Sextant, instrument for determining the angle between the horizon and a celestial body such as the Sun, the Moon, or a star, used in celestial navigation to determine latitude and longitude. The device consists of an arc of a circle, marked off in degrees, and a movable radial arm pivoted at the centre of the circle.
What is the working principle of sextant?
principle of double reflection
The sextant is an instrument used to measure angles. Mainly used at sea, the tool is so named because its arc is one-sixth of a circle – 60 degrees. It adheres to the principle of double reflection hence it can measure angles up to 120 degrees.
How does a Pentagraph work?
Pantograph is an apparatus which mounted on the roof of electric train to collect power through with an overhead tension wire. As the train moves, the contact shoe slides along the wire and can set up acoustical standing waves in the wires which break the contact and degrade current collection.