Top 150+ Solved Radiation and Microwave Techniques MCQ Questions Answer
Q. an IMPATT diode, it results in:
a. avalanche multiplication
b. break down of depletion region
c. high reverse saturation current
d. none of the mentioned
Q. maintain at safe limit.
a. average current
b. average voltage
c. average bias voltage
d. average resistance
Q. If there is no standing wave on a transmission line, then the value of SWR is:
a. 1
b. 0
c. infinity
d. insufficient data
Q. The lowest mode of TE mode propagation in a circular waveguide is:
a. te10 mode
b. te00 mode
c. te01 mode
d. te11 mode
Q. Which of the following parameters does not exist in the transmission line equation?
a. r
b. zo
c. zl
d. propagation constant
Q. The major disadvantage of single stub tuning is:
a. it requires a variable length of line between the load and the stub
b. it involves 2 variable parameters
c. complex calculation
d. none of the mentioned
Q. In a double stub tuner circuit, the load is of _______ length from the first stub.
a. fixed length
b. arbitrary length
c. depends on the load impedance to be matched
d. depends on the characteristic impedance of the transmission line
Q. The major advantage of double stub tuning is:
a. it uses 2 tuning stubs in fixed positions
b. it involves 2 stubs
c. length of the stub is variable
d. none of the mentioned
Q. The modes of propagation supported by a rectangular wave guide is:
a. tm, tem, te modes
b. tm, te
c. tm, tem
d. te, tem
Q. Dominant mode is defined as:
a. mode with the lowest cut off frequency
b. mode with the highest cut off frequency
c. any tem mode is called a dominant mode
d. none of the mentioned
Q. The product of the phase and the group velocities is given by the
a. speed of light
b. speed of light/2
c. 2 x speed of light
d. (speed of light)/4