The static pressure inside a grain dryer can be measured through the use of what instrument? A. thermometer B. manometer C. blower D. conveyor
manometer
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10
This property of any material refers to the amount of heat absorbed or released per unit weight of the material per unit rise or drop in temperature.
Specific Heat
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10
Three cavans of rough rice (50 kg per cavan) was milled by a mobile โbaby conoโ. Output: 95 kg of whole rice and 7 kg of brokens. What is the milling recovery?
68 %
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10
In milling, what part of the rice grain is removed during the whitening process?
bran layer
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5
Which of the following rice mill products have the smallest size? A. head rice B. brown rice C. broken rice D. brewer's rice
brewer's rice
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thief
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gold
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fairy
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lifesaver
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5
What controls the maximum size of feeds in a hammer mill? A. hammer angular speed B. hammer peripheral speed C. size of sieve perforation D. power source
size of sieve perforation
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5
Type of drying system where ambient air is forced through a column of grains. A. mechanical drying B. heated air drying C. unheated air drying D. flash drying
unheated air drying
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10
The amount of grain moisture removed by a cubic meter of air in a drying system is 0.0015 kg. What is the volume of air, in cubic meters, required to remove 120 kg of moisture from the grains?
80,000
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5
What is the maximum allowable increase in crack grains for batch-type mechanical rice dryers? A. 2% B. 3 % C. 5 % D. 7%
5 %
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5
It is an auxiliary part of modern rice mills which is used to removed light materials like chaffs and unfilled grains. A. destoner B. paddy separator C. whitener D. aspirator
aspirator
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seesaw
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seesaw
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gift
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banana
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10
Four bags of paddy rice (50 kg per bag) were milled by a mobile โbaby conoโ. The output consists of 118 kg of head rice and 8 kg of brokens. What is the head rice recovery?
59 %
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15
A blower elevates forage into a 12.2 m high silo at the rate of 455 kg/ minute. Determine the input power of the blower if its efficiency is 40%.
2.3 kW
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5
What machine is used to reduce the size of forage before storage to reduce its bulk? A. feed mill B. chopper C. sheller D. windrower