Question

Among the following corrections applied for tape measurement, identify the correction which is NOT always negative in sign.
1. Slope of tape
2. Pull
3. Sag
4. Wrong alignment

Answer 1

Correct Answer - Option 2 : Pull

Concept:

Types of Error and Correction:

Error due to	Error	Correction
Standardization	+ve or -ve	-ve or +ve respectively
Temperature	+ve or -ve	-ve or +ve respectively
Pull	+ve or -ve	-ve or +ve respectively
Slope	Always +ve	Always -ve
Sagging	Always +ve	Always -ve
Wrong Alignment	Always +ve	Always -ve

Pull correction may be Positive or negative. Hence, option 2 is incorrect.