MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Computer Science
Optoelectronics
Quiz 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Q.1
True or False: All fiber optic cables have the same type of physical connector?
True
False
Q.2
What are the two general types of fiber optic cable found in current networking environments?
Red and Green
Singlemode and Multimode
High-frequency and Low-frequency
Narrowband and Wideband
Q.3
If input frequency is 50Hz then ripple frequency of bridge full wave rectifier will be equal to_________
200Hz
50Hz
45Hz
100Hz
Q.4
Efficiency of bridge full wave rectifier is_________
81.2%
50%
40.6%
45.33%
Q.5
The technique used to quickly switch off a transistor is by_________
reverse biasing its emitter to collector junction
reverse biasing its base to collector junction
reverse biasing its base to emitter junction
reverse biasing any junction
Q.6
Which of the following is true for LEDs
The light emitted by a LED is inversely proportional to the current flowing through the diode
LED operate in a manner opposite to the working of the optoelectronics or photodiodes
LED cannot be used to generate coherent source of light
None of the mentioned
Q.7
The base emitter voltage in a saturation region is_________
greater than 0.7V
equal to 0.7V
less than 0.7V
cannot be predicted
Q.8
The base emitter voltage in a cut off region is_________
greater than 0.7V
equal to 0.7V
less than 0.7V
cannot be predicted
Q.9
The current which is helpful for LED to turn on is_________
emitter current
base current
collector current
depends on bias
Q.10
In which region a transistor acts as a closed switch
Cut off region
Inverted region
Active region
Saturated region
Q.11
In which region a transistor acts as an open switch
Cut Off region
Inverted region
Active region
Saturation region
Q.12
Which of the following isn’t a type of rectifier?
Precision Half-wave Rectifier
Bridge Rectifier
Peak Rectifier
None of the mentioned
Q.13
Which technical product would chemical engineers be least likely to create?
Ultra strong fibers, fabrics, and adhesives for vehicles
Biocompatible materials for implants and prosthetics
Reinforced suspension bridges and earthquake proof houses
Films for optoelectronic devices
Q.14
What is the minimum education for a chemical engineer?
High School Diploma
Associates Degree
Bachelor's Degree
Master's Degree
Q.15
Do chemical engineers typically work within one function of a facility?
Yes
No
Q.16
The demand for chemical engineers at major chemical and pharmaceutical companies is expected to continue but at a __________ pace than average through 2020.
Faster
Slower
Q.17
Which foundational of engineering is playing an increasing role in chemical engineering?
Physics
Biology
Math
Q.18
What type of engineer designs/evaluates ways to manufacture chemicals and other materials and use them to develop products?
mechanical
chemical
environmental
biological
Q.19
When the dimensions of the guide are reduced, the number of ___________ also decreases.
Propagating nodes
Electrons
Holes
Volume of photons
Q.20
When both active and passive devices are integrated on a single chip, in multilayered form, then these devices are known as _____________
IP devices
IO devices
Wavelength converters
Optical parametric amplifiers
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page