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प्रश्न
What is the backlash error?
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उत्तर
Due to constant use, there is space for the play of screw gauge but gradually this space increases with the use or wear and tear so that when the screw is moved by rotating it in some direction, it slips in the nut and does not cover any linear distance for some rotation of the screw head. The error due to this is known as backlash error.
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संबंधित प्रश्न
Name the part of the vernier callipers which is used to measure the following
Thickness of a pencil.
State one use of a screw gauge.
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
While measuring the length of a rod with a vernier callipers, below shows the position of its scales. What is the length of the rod?
Which part of vernier callipers is used to measure the internal diameter of a hollow cylinder?
A micrometre screw gauge has a negative zero error of 7 divisions. While measuring the diameter of a wire the reading on the main scale is 2 divisions and 79th circular scale division coincides with baseline.
If the number of divisions on the main scale is 10 to a centimetre and circular scale has 100 divisions, calculate
- pitch
- observed diameter
- least count
- corrected diameter.
A measuring cylinder is filled with water up to a level of 30 ml. A solid body is immersed in it so that the level of water rises to 37 ml. Now the solid body is tied with a cork and then immersed in water so that the water level rises to 40 ml. Find the volume of the solid body and the cork.
How the backlash error is avoided?
State whether the following statement is true or false by writing T/F against it.
The ratchet of a screw gauge is used to measure the depth of a beaker.
