Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. What function is used to detect a face from an image that the user loads as an input? minNeighbors
detectMultiScale
face_extracter()
cropped_face

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2. LPF in images filtering process is used for _______? Filtering the image
Edge detection
Sharping the image
Blurring image

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3. What does a lightning boll on the right corner of the Pi screen means? Low Memory
SD Card Low Memory
None of these
Low Power

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4. Which is calculated on the basis of number of peaks in data? Modality
Median
Mean
None of these

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5. What is not the part of unsupervised learning? Parametric
Clustering
Dimensional Reduction
Non-Parametric

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6. Which of the following devices is used to share a single internet connection with multiple networks? LAN Card
Router
Switch
Hub

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7. Which command to user to know the current directory you are working on? pwd
wd
ls
curdir

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8. Which is the purpose of HSV color space? Color selection
Hue value
Color Segmentation
Color verification

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9. Which module of OpenCV includes 3D reconstruction and calibration? core
imgproc
viz
callin3D

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10. What is the name of the trained output file? Trained.doc
Trained.jpg
Trained.xml
Trained.yml

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