Rise and Fall Method Concepts

This video tutorial explains the rise and fall method, demonstrating how to enter data into a field book, shift instruments, and take readings. It covers the calculation of rise and fall values and performs arithmetic checks to verify the accuracy of the calculations. The tutorial concludes with a summary of the method and its application.

What is the primary focus of the video tutorial?

• Arithmetic checks

• Field book entries

• Intermediate sites

• Rise and fall method

What is assumed as the initial RL value in the field book?

• 200

• 150

• 100

• 50

What is the significance of the foresight reading in the field book?

• It is used to determine the next station point

• It is used to verify the back sight reading

• It is used to calculate the fall

• It is used to calculate the rise

What is the significance of a positive value in the rise and fall calculation?

• It indicates a rise

• It indicates a fall

• It indicates an error

• It indicates a constant level

How is the second RL calculated if the rise is positive?

• Add the rise to the first RL

• Multiply the rise with the first RL

• Subtract the rise from the first RL

• Divide the rise by the first RL

What does a negative value in the rise and fall calculation indicate?

• A constant level

• An error

• A fall

• A rise

What is the purpose of the arithmetic check in the rise and fall method?

• To determine the highest RL

• To calculate the total distance

• To find the average RL

• To verify the accuracy of the RL calculations

What should the difference between the last RL and the first RL equal to?

• 0.300

• 0.200

• 0.100

• 0.080

What is the result of the arithmetic check if the calculations are correct?

• Negative values

• Equal values

• Different values

• Zero values

What is the final step in verifying the rise and fall method calculations?

• Adjusting the instrument

• Recalculating the RL values

• Ensuring the arithmetic check values are equal

• Rechecking the field book entries