gs gs127 Basics of Artificial Neural Networks - Characteristics - Quiz No.1
gs gs127 SQLite Quiz
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Question 1: What are the issues on which biological networks proves to be superior than AI networks?
robustness & fault tolerance
flexibility
collective computation
all of the mentioned
Question 2: The fundamental unit of network is
brain
nucleus
neuron
axon
Question 3: What are dendrites?
fibers of nerves
nuclear projections
other name for nucleus
none of the mentioned
Question 4: What is shape of dendrites like
oval
round
tree
rectangular
Question 5: Signal transmission at synapse is a?
physical process
chemical process
physical & chemical both
none of the mentioned
Question 6: How does the transmission/pulse acknowledged ?
by lowering electric potential of neuron body
by raising electric potential of neuron body
both by lowering & raising electric potential
none of the mentioned
Question 7: When the cell is said to be fired?
if potential of body reaches a steady threshold values
if there is impulse reaction
during upbeat of heart
none of the mentioned
Question 8: Where does the chemical reactions take place in neuron?
dendrites
axon
synapses
nucleus
Question 9: Function of dendrites is?
receptors
transmitter
both receptor & transmitter
none of the mentioned
Question 10: What is purpose of Axon?
receptors
transmitter
transmission
none of the mentioned
Question 11: What is approx size of neuron body(in micrometer)?
below 5
5-10
10-80
above 100
Question 12: What is the gap at synapses(in nanometer)?
50
100
150
200
Question 13: What is charge at protoplasm in state of inactivity?
positive
negative
neutral
may be positive or negative
Question 14: What is the main constituent of neural liquid?
sodium
potassium
Iron
none of the mentioned
Question 15: What is average potential of neural liquid in inactive state?
+70mv
+35mv
-35mv
-70mv
Question 16: At what potential does cell membrane looses it impermeability against Na+ ions?
-50mv
-35mv
-60mv
-65mv
Question 17: What is effect on neuron as a whole when its potential get raised to -60mv?
it get fired
no effect
it get compressed
it expands
Question 18: The membrane which allows neural liquid to flow will?
never be imperturbable to neural liquid
regenerate & retain its original capacity
only the certain part get affected, while rest becomes imperturbable again
none of the mentioned
Question 19: How fast is propagation of discharge signal in cells of human brain?
less than 0.1m/s
0.5-2m/s
2-5m/s
5-10m/s
Question 20: What is the function of neurotransmitter ?
they transmit data directly at synapse to other neuron
they modify conductance of post synaptic membrane for certain ions
cause polarisation or depolarisation
both polarisation & modify conductance of membrane
Question 21: The cell body of neuron can be analogous to what mathamatical operation?
summing
differentiator
integrator
none of the mentioned
Question 24: What is name of above mechanism?
hebb rule learning
error correction learning
memory based learning
none of the mentioned
Question 25: What is hebb’s rule of learning
the system learns from its past mistakes
the system recalls previous reference inputs & respective ideal outputs
the strength of neural connection get modified accordingly
none of the mentioned
Question 27: What is estimate number of neurons in human cortex?
108
105
1011
1020
Question 28: what is estimated density of neuron per mm^2 of cortex?
15*(102)
15*(104)
15*(103)
5*(104)
Question 29: Why can’t we design a perfect neural network?
full operation is still not known of biological neurons
number of neuron is itself not precisely known
number of interconnection is very large & is very complex
all of the mentioned
Question 30: How many synaptic connection are there in human brain?
1010
1015
1020
105
