Canadian Advanced pool, section 7-09

Advanced

This is an old (expired) question pool. Click here to go to the current version

Subelement 7

Feedlines - Matching and Antennas

Section 7-09

waveguide, microstrip line

7-09-01

Waveguide is typically used:

A.
at frequencies above 2 MHz
Correct Answer
B.
at frequencies above 1500 MHz
C.
at frequencies below 150 MHz
D.
at frequencies below 1500 MHz

7-09-01

This question does not yet have an explanation! Register to add one

Tags: none

7-09-02

Which of the following is Not Correct? Waveguide is an efficient transmission medium because it features:

A.
low radiation loss
B.
low dielectric loss
Correct Answer
C.
low hysteresis loss
D.
low copper loss

7-09-02

This question does not yet have an explanation! Register to add one

Tags: none

7-09-03

Which of the following is an advantage of waveguide as a transmission line?

A.
Frequency sensitive based on dimensions
Correct Answer
B.
Low loss
C.
Expensive
D.
Heavy and difficult to install

7-09-03

This question does not yet have an explanation! Register to add one

Tags: none

7-09-04

For rectangular waveguide to transfer energy, the cross-section should be at least:

A.
three-eighths wavelength
B.
one-eighth wavelength
Correct Answer
C.
one-half wavelength
D.
one-quarter wavelength

7-09-04

This question does not yet have an explanation! Register to add one

Tags: none

7-09-05

Which of the following statements about waveguide Is Not correct?

A.
In the transverse electric mode, a component of the magnetic field is in the direction of propagation
Correct Answer
B.
Waveguide has high loss at high frequencies, but low loss below cutoff frequency
C.
In the transverse magnetic mode, a component of the electric field is in the direction of propagation
D.
Waveguide has low loss at high frequencies, but high loss below cutoff frequency

7-09-05

This question does not yet have an explanation! Register to add one

Tags: none

7-09-06

Which of the following is a major advantage of waveguide over coaxial cable for use at microwave frequencies?

A.
Frequency response from 1.8 MHz to 24 GHz
B.
Easy to install
Correct Answer
C.
Very low losses
D.
Inexpensive to install

7-09-06

This question does not yet have an explanation! Register to add one

Tags: none

7-09-07

What is printed circuit transmission line called?

A.
Dielectric substrate
Correct Answer
B.
Microstripline
C.
Dielectric imprinting
D.
Ground plane

7-09-07

This question does not yet have an explanation! Register to add one

Tags: none

7-09-08

Compared with coaxial cable, microstripline:

Correct Answer
A.
has poorer shielding
B.
has superior shielding
C.
must have much lower characteristic impedance
D.
must have much higher characteristic impedance

7-09-08

This question does not yet have an explanation! Register to add one

Tags: none

7-09-09

A section of waveguide:

A.
operates like a low-pass filter
B.
operates like a band-stop filter
C.
is lightweight and easy to install
Correct Answer
D.
operates like a high-pass filter

7-09-09

This question does not yet have an explanation! Register to add one

Tags: none

7-09-10

Microstripline is:

A.
a small semiconductor family
B.
a high power microwave antenna
C.
a family of fluids for removing coatings from small parts
Correct Answer
D.
printed circuit transmission line

7-09-10

This question does not yet have an explanation! Register to add one

Tags: none

7-09-11

What precautions should you take before beginning repairs on a microwave feed horn or waveguide?

A.
Be sure the weather is dry and sunny
Correct Answer
B.
Be sure the transmitter is turned off and the power source is disconnected
C.
Be sure propagation conditions are unfavorable for tropospheric ducting
D.
Be sure to wear tight-fitting clothes and gloves to protect your body and hands from sharp edge

7-09-11

This question does not yet have an explanation! Register to add one

Tags: none

Log in

- or -

- or -