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Q: In surveying, which of the following instrument is used for indirect measurement?
  • A. Passometer
  • B. Pedometer
  • C. Metric chain
  • D. Speedometer
Correct Answer: Option C - • Metric Chain– The instrument used for indirect measurement. Normally this chain consists of galvanized mild steel wire of 4mm diameter known as link. In a metric chain at every one meter interval of chain, a small brass ring is provided. A 20m chain has 100 links each of 20cm and 30m chain has 150 links. Length of chain is embossed on the brass handles of the chain. • Passometer– It is small instrument which counts the number of paces. • Pedometer– This instrument directly gives the distance by multiplying the number of paces with the average pace length of the person carrying the instrument. • Speedometer– This is used in automobiles for measuring distances. Note : The commission has rejected the question in revised answer key
C. • Metric Chain– The instrument used for indirect measurement. Normally this chain consists of galvanized mild steel wire of 4mm diameter known as link. In a metric chain at every one meter interval of chain, a small brass ring is provided. A 20m chain has 100 links each of 20cm and 30m chain has 150 links. Length of chain is embossed on the brass handles of the chain. • Passometer– It is small instrument which counts the number of paces. • Pedometer– This instrument directly gives the distance by multiplying the number of paces with the average pace length of the person carrying the instrument. • Speedometer– This is used in automobiles for measuring distances. Note : The commission has rejected the question in revised answer key

Explanations:

• Metric Chain– The instrument used for indirect measurement. Normally this chain consists of galvanized mild steel wire of 4mm diameter known as link. In a metric chain at every one meter interval of chain, a small brass ring is provided. A 20m chain has 100 links each of 20cm and 30m chain has 150 links. Length of chain is embossed on the brass handles of the chain. • Passometer– It is small instrument which counts the number of paces. • Pedometer– This instrument directly gives the distance by multiplying the number of paces with the average pace length of the person carrying the instrument. • Speedometer– This is used in automobiles for measuring distances. Note : The commission has rejected the question in revised answer key