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
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