CDC 2e151 Vol 1 Swats Journeyman
This is a mix of self test and made up questions from the text.
- 1.X-rays contain what percent of the initial nuclear explosion energy?
- A.
80%
- B.
70%
- C.
60%
- D.
90%
- E.
50%
- 2.What are the Derived nuclear environments?
- A.
Airblast and shock, thermal radiation, EMP, Atmospheric disturbances, and transient radiation.
- B.
Airblast and shock
- C.
EMP, Atmospheric disturbances, and transient radiation.
- D.
Airblast and shock, and thermal radiation.
- E.
Thermal radiation, EMP, Atmospheric disturbances, and transient radiation.
- 3.What primary nuclear enviornment elements do we call indirectly ionizing radiation?
- A.
X-ray, Neutrons, and Gamma rays
- B.
Neutrons, and Gamma rays
- C.
Gamma rays and Thermal Radiation
- D.
Thermal Radiation, Neutrons, and Gamma rays
- 4.What element contains 50% of the derived enviornment energy?
- A.
Airblast and shock
- B.
Thermal radiation
- C.
Atmospheric disturbances
- D.
Transient radiation
- E.
EMP
- 5.When does the source of radiation occur that causes skin burns, fire, flash blindness, and retinal burns?
- A.
Thermal radiation, second pulse
- B.
Thermal radiation, first pulse
- C.
Transient radiation, second pulse
- D.
Atmospheric disturbances, first pulse
- E.
Transient radiation, first pulse
- 6.What are the two distinct regions of importance for SREMP?
- A.
Source and Radiated
- B.
Primary and Derived
- C.
Source and Derived
- D.
Primary and Radiated
- 7.What is the central issue today concerning EMP?
- A.
Protection
- B.
Avoidance
- C.
Repair
- D.
Shielding
- 8.What type of EMI occurs when an unwanted carrier frequency follows the normal signal path through the effected receiver?
- A.
Co-Channel
- B.
Adjacent signal
- C.
Spurious responses
- D.
Spurious emissions
- 9.What type of intermodulation can have a very large bandwidth and cause more severe interference problems than intermodulation products created in either transmitters or receivers?
- A.
Co-channel
- B.
Brute force
- C.
Spurious response
- D.
Rusty bolt
- 10.What type of EMI occurs when high level radiated signals penetrate and induce a radio frequency voltage in the internal circuits of a system or equipment?
- A.
Brute force
- B.
Co-channel
- C.
Rusty bolt
- D.
Spurious reponses
- 11.How soon must you file a report once you confirm an EMI problem exists?
- A.
24 hours
- B.
48 hours
- C.
12 hours
- D.
36 hours
- 12.What amplitude modulation (AM) receivers are particularly susceptible to power line noise?
- A.
High frequency
- B.
Very-high frequency
- C.
Very-high frequency and High frequency
- D.
Super high frequency
- E.
Very-high frequency, High frequency and Super high frequency
- 13.What are two types of coaxial transmission lines?
- A.
Rigid and flexible
- B.
Shielded pair and twin lead
- C.
Rigid and parallel two-wire
- D.
Flexible and shielded pair
- 14.What action takes place when energy is reflected on a transmission line?
- A.
Standing waves form and the line impedance changes
- B.
Standing waves form and causes heat losses
- C.
Standing waves form and cause radiation losses
- D.
Line impedance changes causes heat losses
- 15.What characteristics are uniform along the length of transmission lines?
- A.
Inductance and Impedance
- B.
Resistance and Inductance
- C.
Capacitance and Impedance
- D.
Resistance, Inductance and Capacitance
- 16.How much will a horizontal polarized wave rotate the E and H fields?
- A.
90 degrees
- B.
180 degrees
- C.
360 degrees
- D.
45 degrees
- 17.What is the optical transmission path in a fiber optic cable?
- A.
Cladding
- B.
Coating
- C.
Core
- D.
Refractive index
- 18.What part of a fiber optic cable provides the reflective surface that allows light to propagate to the distant end?
- A.
Core
- B.
Cladding
- C.
Coating
- D.
Normal
- 19.What part of a fiber optic cable protects it from scratches?
- A.
Core
- B.
Cladding
- C.
Coating
- D.
Refraction
- 20.What is the ratio of light's speed in a vacuum to its speed in a medium?
- A.
Reflection
- B.
Refractive index
- C.
Refraction
- D.
Angle of incidence
- 21.What is the bending of light as it passes through materials of different density?
- A.
Reflection
- B.
Refraction
- C.
Angle of incidence
- D.
Refractive index
- 22.What is the bouncing of light from an object?
- A.
Refraction
- B.
Reflection
- C.
Refractive index
- D.
Angle of incidence
- 23.What is the imaginary line perpendicular to the interface of two media?
- A.
Angle of incidence
- B.
Reflection
- C.
Refraction
- D.
Normal
- 24.What type of fiber optic connector has a conical shape?
- A.
ST connector
- B.
Biconic connector
- C.
SMA connector
- D.
FC connector
- 25.What type of fiber optic connector uses a push-pull arrangement for mating?
- A.
ST connector
- B.
FC connector
- C.
SMA connector
- D.
SC connector
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