Correct Answer - Option 2 : Measurement book and muster are extremely important and basic documents, and should be in the custody of technical staff.
Explanation:
Muster Roll is used for keeping a complete record of attendance, payment made, unpaid wages(if any) and work done by daily labor engaged on the execution of works.
It is the basic records of payment made to daily labour. After the payment is made, the Muster Roll is kept as a Voucher. It is very important record and strictly in accordance with the rules.
The junior engineer or any other individual authorized by the project manager, will enter the details of these on a Muster Roll.
The Measurement Book is the basis of all accounts of measured work and of materials received which have to be measured.
It provides a complete record of works performed under a contract and includes all items having a financial value, so that the final amount due under a contract can be computed.
In view of the importance of measurements, the measurements must be recorded by a person not less than the Junior Engineer and he should be personally responsible for the accuracy of the measurements. He should ensure that measurements are taken as the work proceeds and this work does not fall into arrear.