A ruler that can measure very small units.
For surveying, there are some use of tools. Look at them, The Dividing Engine, Chains, Calculating device (non electric), leveling machine , strange and some other. These tools are very unique to use.
When they need an approximate measurement. The scales used to weigh a truckload of gravel are not as accurate as laboratory scales that can measure the weight of a pencil mark on a bit of paper- but extreme accuracy is not needed for the gravel truck.
You measure it very, very carefully!
a "n-m per second" is a measure of speed, not of distance. At that speed something can be very, very near if measured for a very short time or it could be millions of light years away if measured for a sufficiently long time. The question, therefore, makes no sense.
There is no instrument in world which measure how small an object is but instruments measure how large an object is .
a telescope ! or binoculars
This depends on the length of the object.You can use mm for very short objects, cm for short objects, m for long objects; and working with a microscope we use μm.
multimetre connected with a rheostat
it is used to measure very high voltages which can not be measured with volt meter.
A parallax is hard to measure if it is very small - and this happens when the corresponding object is very far away.
A ruler that can measure very small units.
Use a graduated cylinder to precisely measure volume
The mass of an object is the measure of the amount of matter in the object. It is typically measured in units such as grams or kilograms.
A theodolite is a precision measuring instrument used to measure angles in the horizontal or vertical plane. The instrument is mounted on a tripod and should be very precisely placed in order to make correct measurements.
A spring scale or a dynamometer is typically used to measure the force or pull of gravity acting on an object.
You can measure any object you like using tonnes, however, unless the object is a massive one like an Elephant or a Bus, there is likely to be lots of zeros after (or before) a decimal point which would make it not a very sensible unit to measure the mass of the object.