81. | Ratio of rods per eye in human vision system is |
a. | 6 million |
b. | 120 million |
c. | 10 million |
d. | 110 million |
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Answer: (a).6 million
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82. | Subsystem of human machine processor that handles sensory stimulus is called |
a. | motor system |
b. | cognitive system |
c. | perceptual system |
d. | autonomic system |
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Answer: (c).perceptual system
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83. | Inner ear cochlea is filled with |
a. | air |
b. | wax |
c. | grains |
d. | liquid |
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Answer: (d).liquid
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84. | Specialized nerve cells placed in retina in human eyes are called |
a. | blind spot |
b. | ganglion cells |
c. | cornea |
d. | lens |
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Answer: (b).ganglion cells
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85. | Protection of sensitive middle ear from damage is responsibility of |
a. | inner ear |
b. | medium ear |
c. | outer ear |
d. | middle ear |
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Answer: (c).outer ear
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86. | Rods are placed in human eyes at position of |
a. | edges of cornea |
b. | center of cornea |
c. | edges of retina |
d. | center of retina |
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Answer: (c).edges of retina
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87. | Two types of photoreceptors of retina in human eyes are |
a. | lens and cornea |
b. | lens and rods |
c. | lens and cones |
d. | rods and cones |
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Answer: (d).rods and cones
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88. | Standard line length given by scientists for equally legible is |
a. | 2.1 to 5.3 inches |
b. | 2.3 to 5.2 inches |
c. | 2.2 to 5.3 inches |
d. | 2.5 to 3.2 inches |
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Answer: (b).2.3 to 5.2 inches
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89. | One of factors, that effect speed of screen reading to be reduced is |
a. | longer line lengths |
b. | more words per page |
c. | negative contrast |
d. | colorful display |
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Answer: (a).longer line lengths
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90. | Characteristic of a software that enable it to acquire requirement goal is called |
a. | usable |
b. | useful |
c. | used |
d. | reusable |
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Answer: (b).useful
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