A densitometer is an instrument that measures:

Related MCQs

• When the penumbra on a radiograph measures less than 0.5 mm (0.020 inches), the image will appear to unaided eye of the film interpreter as:
• The cable that connects the ultrasonic instrument to the search unit is specially designed so that one conductor is centred inside another. The technical name for such a cable is:
• An instrument display in which the horizontal base line represents elapsed time and the vertical deflection represents signal amplitudes is called:
• Which of the following circuits provide current to operate the ultrasonic instrument?
• An ultrasonic instrument control which allows moving an A scan display to the left or right without changing the distance between any echoes displayed is called:
• The process of comparing an instrument or device with a standard is called:
• An ultrasonic instrument control which is used to expand or contract the horizontal base line of an A scan display is called:
• AA standard block which can be used to calibrate an instrument for an angle beam range calibration is:
• When a vertical indication has reached the maximum signal height which can be displayed or viewed on the CRT of an ultrasonic instrument, the indication is said to have reached its:
• In a basic pulse-echo ultrasonic instrument, the component that produces the time base line is called a: