In AM pilot carrier, transmission has ________
a) carrier and part of one side band
b) two side bands and a carrier c) two side bands d) carrier, one side band and part of other side band
a) carrier and part of one side band
b) two side bands and a carrier c) two side bands d) carrier, one side band and part of other side band
Anonymous Quiz
30%
A
33%
B
18%
C
18%
D
What is the reason of “envelope” in an amplitude modulated signal?
a) noise signal
b) carrier signal D) nematic signal C) baseband signal
a) noise signal
b) carrier signal D) nematic signal C) baseband signal
Anonymous Quiz
15%
A
26%
B
31%
C
28%
D
What is the cause of Overmodulation?
a) distortion
b) splatter c) both distortion and splatter d) half reception of signals
a) distortion
b) splatter c) both distortion and splatter d) half reception of signals
Anonymous Quiz
24%
A
19%
B
49%
C
8%
D
A single sideband modulation system is more efficient than a plain amplitude modulated system.
a) True
b) False
a) True
b) False
Anonymous Quiz
89%
A
11%
B
👍1
Which one of the following offers CPUs as integrated memory or peripheral interfaces?
a) Microcontroller
b) Microprocessor c) Embedded system d) Memory system
a) Microcontroller
b) Microprocessor c) Embedded system d) Memory system
Anonymous Quiz
49%
A
30%
B
14%
C
8%
D
Which of the following is a 4-bit architecture?
a) MC6800
b) 8086 c) 80386 d) National COP series
a) MC6800
b) 8086 c) 80386 d) National COP series
Anonymous Quiz
44%
A
32%
B
10%
C
15%
D
Which of the following is a RISC architecture?
a) 80286
b) MIPS c) Zilog Z80 d) 80386
a) 80286
b) MIPS c) Zilog Z80 d) 80386
Anonymous Quiz
31%
A
14%
B
31%
C
25%
D
Which one of the following is board based system?
a) Data bus
b) Address bus c) VMEbus d) DMA bus
a) Data bus
b) Address bus c) VMEbus d) DMA bus
Anonymous Quiz
11%
A
19%
B
58%
C
11%
D
It retains its content when power is removed. What type of memory is this?
a) Volatile memory
b) Nonvolatile memory c) RAM d) SRAM
a) Volatile memory
b) Nonvolatile memory c) RAM d) SRAM
Anonymous Quiz
32%
A
47%
B
18%
C
3%
D
The initial routine is often referred to as
a) Initial program
b) Bootstrap program c) Final program d) Initial embedded program
a) Initial program
b) Bootstrap program c) Final program d) Initial embedded program
Anonymous Quiz
24%
A
54%
B
10%
C
12%
D
What is the total sideband power if there is 100% modulation?
a) half the carrier wave
b) twice the carrier wave c) equal to the carrier wave d) one-fourth of the carrier wav
a) half the carrier wave
b) twice the carrier wave c) equal to the carrier wave d) one-fourth of the carrier wav
Anonymous Quiz
34%
A
31%
B
14%
C
20%
D
If AM radio station increases its modulation index then there is an increase in receiving RF signal.
a) True
b) False
a) True
b) False
Anonymous Quiz
63%
A
37%
B
👍1🔥1
A single sideband modulation system requires a more complex demodulator circuit.
a) True
b) False
a) True
b) False
Anonymous Quiz
73%
A
27%
B
To demodulate a USB SSB signal, the receiver must ________
a) be set to USB mode
b) reinsert the carrier c) be set to USB mode and reinsert the carrier d) have low-fidelity
a) be set to USB mode
b) reinsert the carrier c) be set to USB mode and reinsert the carrier d) have low-fidelity
Anonymous Quiz
17%
A
28%
B
47%
C
9%
D
FSK stands for ________
a) Frequency Segregation Keying
b) Frequency Section Keying c) Frequency Signal Keying d) Frequency Shift Keying
a) Frequency Segregation Keying
b) Frequency Section Keying c) Frequency Signal Keying d) Frequency Shift Keying
Anonymous Quiz
5%
A
11%
B
13%
C
71%
D
When analyzing a transmission line, its inductance and capacitance are considered as _________
a) distributed
b) lumped c) equal reactances d) equal impedances
a) distributed
b) lumped c) equal reactances d) equal impedances
Anonymous Quiz
46%
A
26%
B
17%
C
11%
D
What effect will be seen on the resistance of a wire if we increase the frequency?
a) it will also increase
b) it starts to decrease c) it will remain same d) it starts changing periodically
a) it will also increase
b) it starts to decrease c) it will remain same d) it starts changing periodically
Anonymous Quiz
23%
A
19%
B
48%
C
10%
D
👍1😁1
What is speed of radio waves in free space?
a) 3 x 106 m/s
b) 3 x 109 m/s c) 300 x 106 m/s d) 300 x 109 m/s
a) 3 x 106 m/s
b) 3 x 109 m/s c) 300 x 106 m/s d) 300 x 109 m/s
Anonymous Quiz
23%
A
43%
B
27%
C
7%
D
👍2
An antenna has “gain” as compared to ________
a) Helical antenna
b) Marconi antenna c) Vertically polarized radiator d) Isotropic radiator
a) Helical antenna
b) Marconi antenna c) Vertically polarized radiator d) Isotropic radiator
Anonymous Quiz
6%
A
16%
B
41%
C
38%
D