to reduce hysteresis effect
to give linear relation between applied strains and resistance change
to increase sensitivity
to reduce or eliminate the effect of variation in ambient temperature
0.7 to 1.5%
0.05 to 0.25%
3 to 3.75%
none of the above
Argon and helium
Helium and neon
Hydrogen and neon
Carbon dioxide and hydrogen
projection line
leader line
long break line
cutting plane
T/2
T
2T
4T