Key Topic 42: Waveguides-1

Question 1

8-42E1: Waveguides can be constructed from:

A. Brass.
B. Aluminum.
C. Copper.
D. All of the above.

Answer 1

D. All of the Above.

Question 2

8-42E2: A microwave transmission line constructed of a center conductor suspended between parallel conductive ground planes is called:

A. Microstrip.
B. Coax.
C. Stripline.
D. Waveguide.

Answer 2

C. Stripline.

Question 3

8-42E3: Waveguide theory is based upon:

A. The movement of an electromagnetic field.
B. Current flow through conductive wires.
C. Inductance.
D. Resonant charging.

Answer 3

A. The movement of an electromagnetic field.

Question 4

8-42E4: A waveguide is used at RADAR microwave frequencies because:

A. It is easier to install than other feedline types.
B. It is more rugged than other feedline types.
C. It is les expensive than other feedline types.
D. It has lower transmission losses than other feedline types.

Answer 4

D. It has lower transmission losses than other feedline types.

Question 5

8-42E5: Waveguide theory is based on the principles of:

A. Ohm’s Law.
B. High standing waves.
C. Skin effect and use of 1/4 wave stubs.
D. None of the above.

Answer 5

C. Skin effect and use of 1/4 wave stubs.

Question 6

8-42E6: How is the signal removed from a waveguide or magnetron?

A. With a thin wire called a T-hook.
B. With a thin wire called a J-hook.
C. With a coaxial connector.
D. With a waveguide flange joint.

Answer 6

B. With a thin wire called a J-hook.