Surveillance Technology Quiz 2 (SDL)

A 1” camera format with image sensor height of 9.6mm, focal length of 55 mm and working distance of 1408mm. What is the height of the scene?

• 210.76 mm

• 220.76 mm

• 235.76mm

• 245.76 mm

A ⅔” camera format with image sensor width of 8.8mm, working distance of 25m and focal length of 12 mm. What is the horizontal length of the scene?

• 18.33 mm

• 18.33 ft

• 18.33 m

• 18.33 cm

A ⅓” camera format with image sensor height of 3.6mm, working distance of 17m and focal length of 19.2 mm. What is the vertical height of the scene?

• 3.1875 mm

• 4.1875 mm

• 3.1875 m

• 4.1875 m

A ¼” camera format with image sensor width of 3.6mm, focal length of 37 mm and working distance of 780 feet. What is the width of the scene?

• 7.589 m

• 7.589 ft

• 75.89 m

• 75.89 ft

A ½” camera format with image sensor width of 6.4mm, working distance of 34m and focal length of 2.8 mm. What is the width of the scene?

• 77.71 m

• 7.71 m

• 66.71 m

• 6.71 m

A ¼” camera format with image sensor height of 2.7mm, working distance of 59 feet and focal length of 18 mm. What is the height of the scene?

• 7.85 ft

• 8.85 ft

• 9.85 ft

• 10.85ft

An image sensor is a silicon-based Integrated circuit to ________

• convert image to electrical charge.

• convert light energy to electrical charge.

• convert lux to electrical charge.

• convert electrical charge to light.

Lux is the SI unit for the measurement of ______.

• candle light.

• light intensity.

• luxury index.

• light brightness.

An analog camera is connected to a ______ for recording.

• DVR

• NVR

• PC or laptop

• SD card

An IP camera is connected to a ______ for recording.

• DVR

• NVR

• PC or laptop

• SD card