Question
What is the backlash error?
✓
Answer
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.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
(a) Define SI unit of pressure.
(b) The atmospheric pressure at a place is 650 mm of Hg . Calculate this pressure in Pascals $( Pa )$.
→(b) The atmospheric pressure at a place is 650 mm of Hg . Calculate this pressure in Pascals $( Pa )$.
QUESIION A piece of wax floats on brine. What fraction of its volume is immersed? Density of wax $=0.95 g cm ^{-3}$, Density of brine $=1.1 g cm ^{-3}$.
→From the displacement - time graph shown given below calculate : -
1. Average velocity in first three seconds.
2. Displacement from initial position at the end of 13 s .
3. Time after which the body is at the initial position,
4. Average velocity after 8 s .
1. Average velocity in first three seconds.
2. Displacement from initial position at the end of 13 s .
3. Time after which the body is at the initial position,
4. Average velocity after 8 s .
A racing car, initially at rest, picks up a velocity of $180 kmh ^{-1}$ in 4.5 s . Calculate
1. acceleration
2. distance covered by car.
→1. acceleration
2. distance covered by car.
What is the centre of buoyancy? State its position for a floating body with respect to the centre of gravity of the body.
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
Linear speed = Angular velocity X radius of the circle
A student calculates experimentally the value of density of iron as $7.4 gem ^{-3}$. If the actual density of iron is $7.6 gcm ^{-3}$, calculate the percentage error in experiment.
→Explain, why a gas bubble released at the bottom of a lake grows in size as it rises to the surface of the lake.
The distance between one crest and one trough of a sea wave is 4.5 m . If the waves are produced at the rate of $240 / min$, calculate
1. time period
2. wave velocity.
→1. time period
2. wave velocity.
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.