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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baam
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fairy
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25
fairy
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25
lifesaver
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5
What do you call the product of rice milling when only the outer covering of the rough rice has been removed? A. brown rice B. milled rice C. head rice D. broken rice
brown rice
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trap
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seesaw
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shark
Other team loses 15 points!
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baam
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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
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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banana
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fairy
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25
fairy
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lifesaver
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5
The minimum heating efficiency of indirect-fired, biomass-fed mechanical grain dryer is _______%? A. 50 B. 65 C. 75 D. 90
50
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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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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 value of relative humidity for the ambient air represents the highest drying potential in in-storage drying? A. 60 % B. 70 % C. 80 % D. 100 %
60 %
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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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5
It is the term used to describe the processing of agricultural products without changing its form like drying and cooling. A. Primary Processing B. Refrigeration C. Secondary Processing D. Dehydration
Primary Processing
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5
The heat needed to remove moisture from grains by evaporator is _____________. A. latent heat of fusion B. latent heat of vaporization C. sensible heat D. heating value
latent heat of vaporization
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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?