Consider the following statements:
1. Tension correction is negative if applied pull is more than the standard pull.
2. Temperature correction is positive if the temperature during measurement is more than standard temperature.
3. The pull which when applied to a tape suspended in the air, equalies the correction due to pull and sag is known as normal tension.
Which of the above statements is(are) correct?
1
1 only
2
2 and 3
3
2 only
4
1 and 2