1. The frequency, wavelength, and velocity of SWD is
A.25.3 Mhz, 12m, 2×10 power of 7 m/s
B.27.12 Mhz, 11m, 3×10 power of 8 m/s
2.Di-electric means
A.The ease with which the effect of a charge can be passed thru a material
B. Ease of polarization
3.Di-electric constant means
A. The ease with which the effect of a charge can be passed thru a material
B.Ease of polarization
4. In the induction field diathermy, the heating effects are done by
A.Using magnetic field
B. Induce an electrical current within body parts
Using an electric field
C.Made of metal that is shaped into a coil
5. A low dielectric constant & conductivity is to
A.High water content, muscle nerve, blood vessels, internal organs & moist skin
B.Low water content, bone, capsule, ligaments, fat, dry skin
C.All of the above
6. A high dielectric constant & conductivity is to
A.High water content, muscle nerve, blood vessels, internal organs & moist skin
B.Low water content, bone, capsule, ligaments, fat, dry skin
C.All of the above
7. The electric field will
A.Converge onto substance with high dielectric constant
B.Converge onto substance with low dielectric constant
C.Diverge within substances with high dielectric constant
D. Diverge within substances with low dielectric constant
8.The closer/smaller the electrode, the more superficial & local the pattern of heating
A.True
B.False
9. The pattern of heating is changed by altering the relationship of the electrode to each other
A.True
B.False
10. The characteristics of co-planar (plates in parallel) are
A. Current intensity is the same in all parts of the series circuit
B. Current has a choice of the path it can follow
C. Heat produced depends on the density of current
D. Always follow the path of least resistance
E. As more current flows through tissues of low impedance, more heat is generated in these tissues
11. A low impedance is due to
A.High dielectric constant, high conductivity
B.Low dielectric constant, low conductivity
1.B 2.B 3.B 4.A,B,C 5.B 6.A 7.A,C 8.A 9.A 10.A,B,C,D 11.A
