What is the approximate reliability of a microwave system?
a) 90%
b) 99% c) 99.99% d) 90.99%
a) 90%
b) 99% c) 99.99% d) 90.99%
Anonymous Quiz
19%
A
16%
B
43%
C
22%
D
👍2
Which modulation is used by a microwave system?
a) FM
b) SSB c) QAM d) Either FM or SSB or QAM
a) FM
b) SSB c) QAM d) Either FM or SSB or QAM
Anonymous Quiz
5%
A
16%
B
32%
C
47%
D
👍1😁1
An inverting amplifier that amplifies dc input level is called
a) DC and AC amplifier
b) AC amplifier c) DC amplifier d) None of the mentioned
a) DC and AC amplifier
b) AC amplifier c) DC amplifier d) None of the mentioned
Anonymous Quiz
19%
A
26%
B
52%
C
3%
D
Why DC amplifier uses offset null circuitry?
a) To reduce the distortion in output
b) To improve the accuracy of amplifier c) To get large output gain d) All of the mentioned
a) To reduce the distortion in output
b) To improve the accuracy of amplifier c) To get large output gain d) All of the mentioned
Anonymous Quiz
17%
A
13%
B
23%
C
47%
D
Why are coupling capacitor used in audio receiver system?
a) All of the mentioned
b) Thermal drift c) Component tolerance d) Variation in signal
a) All of the mentioned
b) Thermal drift c) Component tolerance d) Variation in signal
Anonymous Quiz
22%
A
16%
B
25%
C
38%
D
When does the offset voltage compensating network must be used in inverting configuration?
a) When the input is AC voltage
b) When the input is DC voltage c) When the input is either AC or DC voltage d) None of the mentioned
a) When the input is AC voltage
b) When the input is DC voltage c) When the input is either AC or DC voltage d) None of the mentioned
Anonymous Quiz
39%
A
32%
B
29%
C
0%
D
State the application in which summing, scaling or averaging amplifiers are used?
a) Multiplexers
b) Counters c) Audio mixers d) All of the mentioned
a) Multiplexers
b) Counters c) Audio mixers d) All of the mentioned
Anonymous Quiz
13%
A
10%
B
35%
C
42%
D
Find the maximum output voltage swing of an AC inverting amplifier using op-amp 741C?
a) +15Vpp
b) ±15Vpp c) ±13Vpp d) +13Vpp
a) +15Vpp
b) ±15Vpp c) ±13Vpp d) +13Vpp
Anonymous Quiz
13%
A
68%
B
16%
C
3%
D
How the peaking response is obtained?
a) Using a series LC network with op-amp
b) Using a series RC network with op-amp c) Using a parallel LC network with op-amp d) Using a parallel RC network with op-amp
a) Using a series LC network with op-amp
b) Using a series RC network with op-amp c) Using a parallel LC network with op-amp d) Using a parallel RC network with op-amp
Anonymous Quiz
21%
A
36%
B
32%
C
11%
D
In which amplifier the output voltage is equal to the negative sum of all the inputs?
a) Averaging amplifier
b) Summing amplifier c) Scaling amplifier d) All of the mentioned.
a) Averaging amplifier
b) Summing amplifier c) Scaling amplifier d) All of the mentioned.
Anonymous Quiz
13%
A
61%
B
6%
C
19%
D
Determine the expression of output voltage for inverting summing amplifier consisting of four internal resistors?
a) Vo = -(Rf/R )×(Va +Vb+Vc+Vd)
b) Vo = (RF/R)×(Va +Vb+Vc+Vd) c) Vo = (R/ RF)×(Va +Vb+Vc+Vd) d) None of the mentioned
a) Vo = -(Rf/R )×(Va +Vb+Vc+Vd)
b) Vo = (RF/R)×(Va +Vb+Vc+Vd) c) Vo = (R/ RF)×(Va +Vb+Vc+Vd) d) None of the mentioned
Anonymous Quiz
59%
A
21%
B
15%
C
6%
D
What is Mobile communication
Anonymous Quiz
55%
Allows to communicate from different locations without the use of physical medium
32%
Allows to communicate from different locations with the use of physical medium
10%
Allows to communicate from same locations without the use of physical medium
3%
Allows to communicate from same locations with the use of physical medium
Which of the following is a type of wireless communication?
a) LAN
b) WAN c) PAN d) All of the mentioned
a) LAN
b) WAN c) PAN d) All of the mentioned
Anonymous Quiz
13%
A
24%
B
13%
C
50%
D
Which of the following is not an example of wireless communication?
a) Wi-Fi
b) Mobiles c) Landline d) Wireless Computer Parts
a) Wi-Fi
b) Mobiles c) Landline d) Wireless Computer Parts
Anonymous Quiz
14%
A
14%
B
70%
C
3%
D
❤1
Why wireless communication is used?
a) It enables billions of people to connect to the Internet
b) Lowers the cost of network infrastructure c) Makes services more inexpensive d) All of the mentioned
a) It enables billions of people to connect to the Internet
b) Lowers the cost of network infrastructure c) Makes services more inexpensive d) All of the mentioned
Anonymous Quiz
6%
A
9%
B
12%
C
73%
D
🥰1
Which of the following is the drawback for cordless telephones?
a) Security
b) Wireless technology c) Limited coverage area d) Mobile
a) Security
b) Wireless technology c) Limited coverage area d) Mobile
Anonymous Quiz
9%
A
29%
B
51%
C
11%
D
👍1
Which two channels are responsible for initiating mobile calls?
a) FCC and RVC
b) FVC and FCC c) FVC and RVC d) FCC and RCC
a) FCC and RVC
b) FVC and FCC c) FVC and RVC d) FCC and RCC
Anonymous Quiz
27%
A
12%
B
36%
C
24%
D
Which of the following is not a TDMA standard of 2.5G network?
a) GPRS
b) GSM c) HSCSD d) EDGE
a) GPRS
b) GSM c) HSCSD d) EDGE
Anonymous Quiz
20%
A
33%
B
30%
C
18%
D
Which of the following leads to the 3G evolution of GSM, IS-136 and PDC systems?
a) GPRS
b) HSCSD c) W-CDMA d) EDGE
a) GPRS
b) HSCSD c) W-CDMA d) EDGE
Anonymous Quiz
38%
A
23%
B
31%
C
8%
D
🔥1
Which of the most widely used model for signal prediction in urban areas?
a) Okumura model
b) Attenuation factor model c) Ericsson Multiple Breakpoint Model d) Log distance path loss model
a) Okumura model
b) Attenuation factor model c) Ericsson Multiple Breakpoint Model d) Log distance path loss model
Anonymous Quiz
12%
A
41%
B
29%
C
18%
D