NVCC RAD 105 Final
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. When electrons bombard the target, ____% of their kinetic energy is
converted to heat.
- ANSWER 99
2. The target of the rotating anode is usually coated with a ___________ alloy.
- ANSWER tungsten
3. Because of the line focus principal, the effective focal spot size decreases
with decreasing _____________.
- ANSWER target angle
4. The x-ray intensity is lower on the anode side of the tube because of the
_________.
- ANSWER heel effect
5. The negative side of the x-ray tube holds the ________.
,- ANSWER filament
6. The cathode side of the tube should be directed toward the _____ part of
the patient.
- ANSWER thicker
7. Thermionic emission at the filament creates a __________.
- ANSWER space charge
8. The most widely used support structure for the x-ray tube is the
______________.
- ANSWER ceiling support system
9. As an x-ray tube ages, the inside can become coated with tungsten, which
can cause _____ in the tube.
- ANSWER arcing
10.The filament is made of __________.
- ANSWER tungsten
11.Highcapacity tube rotors revolve at ______ rpm.
- ANSWER 10,000
12.The external structure of the x-ray tube includes the support structure, the
protective housing, and the ___________.
- ANSWER glass envelope
13.What is the most common cause of tube failure?
- ANSWER Tungsten vaporization
14.The rotating anode is turned by a ____________.
- ANSWER magnetic field
15.The ___________ is the source of radiation in the x-ray tube.
, - ANSWER focal spot
16.Each tube has its own tube rating chart to show __________________.
- ANSWER maximum exposure times
17.Tube failure can occur from _______________.
- ANSWER long exposure times
18.What is the formula for heat units for a 3-phase, 6-pulse x-ray machine?
- ANSWER 1.35 × kVp × mA × seconds
19.A dual focus tube has two _______.
- ANSWER filaments
20.The filament in an x-ray tube is about _____ cm in length.
- ANSWER 1 to 2
21.The high voltage generator contains the high voltage transformer, the
__________, and the ___________.
- ANSWER filament transformer; rectifiers
22.The mAs timer is usually set to give the __________ mA at the _________
time.
- ANSWER highest; shortest
23.The autotransformer has _____ winding(s).
- ANSWER one
24.The _________ circuit provides electrons for the x-ray tube current.
- ANSWER filament
25.The operating console contains circuits that are ________________.
- ANSWER low voltage only
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. When electrons bombard the target, ____% of their kinetic energy is
converted to heat.
- ANSWER 99
2. The target of the rotating anode is usually coated with a ___________ alloy.
- ANSWER tungsten
3. Because of the line focus principal, the effective focal spot size decreases
with decreasing _____________.
- ANSWER target angle
4. The x-ray intensity is lower on the anode side of the tube because of the
_________.
- ANSWER heel effect
5. The negative side of the x-ray tube holds the ________.
,- ANSWER filament
6. The cathode side of the tube should be directed toward the _____ part of
the patient.
- ANSWER thicker
7. Thermionic emission at the filament creates a __________.
- ANSWER space charge
8. The most widely used support structure for the x-ray tube is the
______________.
- ANSWER ceiling support system
9. As an x-ray tube ages, the inside can become coated with tungsten, which
can cause _____ in the tube.
- ANSWER arcing
10.The filament is made of __________.
- ANSWER tungsten
11.Highcapacity tube rotors revolve at ______ rpm.
- ANSWER 10,000
12.The external structure of the x-ray tube includes the support structure, the
protective housing, and the ___________.
- ANSWER glass envelope
13.What is the most common cause of tube failure?
- ANSWER Tungsten vaporization
14.The rotating anode is turned by a ____________.
- ANSWER magnetic field
15.The ___________ is the source of radiation in the x-ray tube.
, - ANSWER focal spot
16.Each tube has its own tube rating chart to show __________________.
- ANSWER maximum exposure times
17.Tube failure can occur from _______________.
- ANSWER long exposure times
18.What is the formula for heat units for a 3-phase, 6-pulse x-ray machine?
- ANSWER 1.35 × kVp × mA × seconds
19.A dual focus tube has two _______.
- ANSWER filaments
20.The filament in an x-ray tube is about _____ cm in length.
- ANSWER 1 to 2
21.The high voltage generator contains the high voltage transformer, the
__________, and the ___________.
- ANSWER filament transformer; rectifiers
22.The mAs timer is usually set to give the __________ mA at the _________
time.
- ANSWER highest; shortest
23.The autotransformer has _____ winding(s).
- ANSWER one
24.The _________ circuit provides electrons for the x-ray tube current.
- ANSWER filament
25.The operating console contains circuits that are ________________.
- ANSWER low voltage only
