NPTEL Forests and Their Management Week 5 Assignment Answers 2025
1. “This sampling employs a simple rule of selecting every kth unit starting with a number chosen at random from 1 to k as the random start.” We’re talking about
- Simple random sampling
- Systematic sampling
- Stratified sampling
- Multistage sampling
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2. IMU stands for
- Imperial metering unit
- Inertial metering unit
- Imperial measurement unit
- Inertial measurement unit
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3. ____________ is how close the measured values are to the correct value.
- Accuracy
- Precision
- Bias
- Variance
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4. A list of sampling units is called a
- frame
- window
- sample
- population
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5. The time of flight for LiDAR is 0.00001 sec. Find the distance of the object from the instrument.
- 500 m
- 1000 m
- 1500 m
- 2000 m
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6. Which of these is correct?
- Plane surveying takes into account the true shape of the Earth and is used for smaller areas (< 250 sq km) Plane surveying takes into account the true shape of the Earth and is used for larger areas (> 250 sq km)
- Geodetic surveying takes into account the true shape of the Earth and is used for smaller areas (< 250 sq km) Geodetic surveying takes into account the true shape of the Earth and is used for larger areas (> 250 sq km)
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7. A sampling procedure such that each possible combination of sampling units out of the population has the same chance of being selected is referred to as
- Simple random sampling
- Systematic sampling
- Stratified sampling
- Multistage sampling
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8. The frequency of flyovers is an indicator of
- spatial resolution
- temporal resolution
- spectral resolution
- radiometric resolution
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9. ___________ is how close the measured values are to each other.
- Accuracy
- Precision
- Bias
- Variance
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10. Bathymetric LiDAR uses
- far infrared light
- near infrared light
- orange light
- green light
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