Chapter 06: Dental X-Ray Equipment

Chapter 06: Dental X-Ray Equipment

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. _________________ regulate(s) the manufacture and installation of dental x-ray equipment.

ANS:  A

While state governments may regulate how dental x-ray equipment is used, the federal government regulates the manufacture and installation of dental x-ray equipment.

DIF:    Recall             REF:   Page 54          OBJ:   2

TOP:   CDA, RHS, III.B.3. Demonstrate understanding of x-ray machine factors that influence radiation safety     MSC:           NBDHE, 2.5 General

2. The position-indicating device (PID) is an extension of the

ANS:  A

The PID is an extension of the tubehead. The extension arm supports the x-ray tubehead. The control panel allows the dental radiographer to regulate the x-ray beam. The exposure button activates the machine to produce x-rays.

DIF:    Comprehension                               REF:   Page 54          OBJ:   5

TOP:   CDA, RHS, III.B.3. Demonstrate understanding of x-ray machine factors that influence radiation safety     MSC:           NBDHE, 2.5 General

3. The _____________ allow(s) for positioning of the tubehead.

ANS:  B

The control devices regulate the x-ray beam. The extension arm allows for positioning of the tubehead. The control panel allows the dental radiographer to regulate the x-ray beam. The exposure button activates the machine to produce x-rays.

DIF:    Recall             REF:   Page 54          OBJ:   5

TOP:   CDA, RHS, III.B.3. Demonstrate understanding of x-ray machine factors that influence radiation safety     MSC:           NBDHE, 2.5 General

4. You have your patient in the chair, you have placed the receptor in your patient’s mouth, and you have positioned the position-indicating device. Which of the following should you do next to take the x-rays?

ANS:  B

The on-off switch turns the machine on and off; it should have been turned on before your patient was seated. The exposure button is depressed when you are ready to activate the machine to produce x-rays. The exposure light, which is illuminated during x-ray exposure, will automatically come on to indicate that the exposure button has been depressed. The control devices, which include the timer and kV and milliamperage selectors, are adjusted prior to exposing the patient to x-rays.

DIF:    Application    REF:   Page 56          OBJ:   5

TOP:   CDA, RHS, III.B.3. Demonstrate understanding of x-ray machine factors that influence radiation safety     MSC:           NBDHE, 2.5 General