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POSTHARVEST MACHINERY STANDARDS & MOT’s

Total questions: 70

Worksheet time: 35mins

Name
Class
Date
1.

What is the warranty period of a Mechanical Grain Dryer?

a)

1 year

b)

2 years

c)

6 months

d)

3 years

2.

What is the maximum noise level of Rice Reaper ?

a)

92 dB

b)

75 dB

c)

60 dB

d)

105 dB

3.

What is the maximum moisture gradient for Mechanical Grain Dryer?

a)

2%

b)

5%

c)

10%

d)

0.5%

4.

What is the static pressure of Mechanical Grain Dryer?

a)

25 mmH2O

b)

10 mmH2O

c)

50 mmH2O

d)

100 mmH2O

5.

What is the minimum heating system efficiency for petroleum based fuel Mechanical Grain Dryer?

a)

90% (direct-fired), 75% (indirect-fired)

b)

90% (indirect-fired), 75% (direct-fired)

c)

90% (direct-fired), 75% (direct-fired)

d)

90% (indirect-fired), 75% (indirect-fired)

6.

What is the minimum heating system efficiency for biomass fuel Mechanical Grain Dryer?

a)

65% (indirect-fired), 50% (indirect-fired)

b)

65% (direct-fired), 50% (direct-fired)

c)

65% (direct-fired), 50% (indirect-fired)

d)

65% (indirect-fired), 50% (direct-fired)

7.

For Batch dryers, at least ____ samples from the batch of grain to be dried shall be taken, spaced evenly over the loading period. Samples shall be taken from different portions of the dryer (bottom, middle and top).

a)

12

b)

6

c)

8

d)

10

8.

For Mechanical Grain Dryer testing, particularly in the Standard laboratory method in assessing milling quality of paddy Palay sample is ____; Palay sample after cleaning is ____; and Brown Rice ____.

a)

500 g; 200 g; 20 g

b)

400 g; 150 g; 15 g

c)

600 g; 250 g; 25 g

d)

300 g; 100 g; 10 g

9.

It is a common type of thresher that gives off a capacity of 0.3 – 1.5 tons/hr.

a)

standard thresher

b)

axial flow thresher

c)

hammer mill thresher

d)

drum type thresher

10.

Min. threshing efficiency for Mechanical Rice Thresher: ________

a)

99.8%

b)

95%

c)

90%

d)

85%

11.

Min. shelling efficiency for Corn Sheller: ________

a)

99.5%

b)

90%

c)

85%

d)

80%

12.

Min. shelling efficiency for Peanut Sheller: ________

a)

95%

b)

80%

c)

70%

d)

60%

13.

Min. threshing recovery for Mechanical Rice Thresher: ________

a)

97%

b)

85%

c)

90%

d)

80%

14.

Min. shelling recovery for Corn Sheller: ________

a)

97%

b)

85%

c)

90%

d)

80%

15.

Min. shelling recovery for Peanut Sheller: ________

a)

93%

b)

80%

c)

85%

d)

90%

16.

Max. Total losses for Mechanical Rice Thresher and Corn Sheller: ________

a)

3%

b)

5%

c)

10%

d)

1%

17.

Max. Total losses for Peanut Sheller: ________

a)

7%

b)

10%

c)

3%

d)

15%

18.

Max. Mechanically Damage grain for Mechanical Rice Thresher and Rice Combine: ________

a)

2%

b)

5%

c)

10%

d)

0.5%

19.

Max. Mechanically Damage kernel for Corn Sheller: ________

a)

3%

b)

5%

c)

1%

d)

7%

20.

Max. Mechanically Damage kernel for Peanut Sheller: ________

a)

3.5%

b)

5%

c)

1.5%

d)

7%

21.

Max. Noise level for Mechanical Rice Thresher, Rice Combine and Fiber Decorticator: ________

a)

95 dB

b)

80 dB

c)

100 dB

d)

110 dB

22.

Based on Mechanical Rice Thresher Warranty from PAES 204:2000, Rice Reaper Warranty from PAES 212:2004 and Rice Combine Harvester Warranty from PAES 224:2005, their construction shall be rigid and durable without major breakdown of the mechanisms within ____.

a)

six (6) months

b)

three (3) months

c)

one (1) year

d)

nine (9) months

23.

Preliminary operation of the machine to make various adjustments prior to the conduct of test: _________

a)

running-in period

b)

shutdown procedure

c)

final inspection

d)

emergency stop

24.

Max. Grain Moisture Content for Mechanical Rice Thresher testing: _________

a)

24% MCwb

b)

18% MCwb

c)

30% MCwb

d)

12% MCwb

25.

21. Straw Length for Mechanical Rice Thresher testing: _________.

a)

45 cm – 50 cm

b)

30 cm – 35 cm

c)

55 cm – 60 cm

d)

20 cm – 25 cm

26.

22. Grain Straw Ratio for Mechanical Rice Thresher testing: _________.

a)

0.50-0.65

b)

0.70-0.85

c)

0.30-0.45

d)

0.90-1.05

27.

23. It is also known as cargo rice: _________.

a)

brown rice

b)

white rice

c)

jasmine rice

d)

basmati rice

28.

Type of a huller with rotating blades and utilizes pressure such as Coriolis’ force: _________?

a)

centrifugal type

b)

roller type

c)

impact type

d)

abrasive type

29.

25. Min. Milling Recovery of Under Runner (Cono) Type Rice Mill: _________.

a)

97%

b)

85%

c)

90%

d)

92%

30.

26. Min. Milling Recovery of Rubber Roll & Centrifugal Type Rice Mill: _________.

a)

98%

b)

85%

c)

92%

d)

75%

31.

27. Min. Percent Head Rice of Rice Mill: _________.

a)

90%

b)

70%

c)

80%

d)

60%

32.

28. Min. Hulling Efficiency of Rice Mill: _________.

a)

80%

b)

60%

c)

90%

d)

70%

33.

29. Milling Degree of Rice Mill: _________.

a)

Well-milled

b)

Half-milled

c)

Unmilled

d)

Broken

34.

30. No. of paddy per kilogram milled rice: _________.

a)

15

b)

10

c)

20

d)

25

35.

31. Warranty of Rice Mill and Corn Mill: _________.

a)

6 months

b)

1 month

c)

1 year

d)

3 months

36.

The specified capacity at the brown rice output of the paddy separator must be attained, with maximum of ____ pieces of palay per kilogram of brown rice output.

a)

10

b)

25

c)

50

d)

100

37.

33. It is also known as pearler: _________?

a)

Polisher

b)

Cutter

c)

Grinder

d)

Smoother

38.

For rice mill, hammer mill, and rubber roll testing, the min. purity of sample is ____.

a)

98%

b)

90%

c)

85%

d)

80%

39.

Minimum Purity in Corn Sheller is ____.

a)

98%

b)

85%

c)

90%

d)

95%

40.

36. Palay whose average length of the full brown rice grain is above 6.5 millimeters _____.

a)

long grains

b)

short grains

c)

medium grains

d)

broken grains

41.

37. Palay with whole milled rice grain having length/width ratio over 3.0 ____.

a)

slender grains

b)

bold grains

c)

short grains

d)

round grains

42.

Type of shelling cylinder formed by a rolled metal sheet/plate or formed by longitudinal bars adjacently arranged forming a continuous cylinder.

a)

closed-frame cylinder

b)

open-frame cylinder

c)

lattice shell cylinder

d)

truss shell cylinder

43.

Type of shelling cylinder where the shelling elements are attached to the equally spaced longitudinal bars arranged cylindrically.

a)

open-frame cylinder

b)

closed-frame cylinder

c)

perforated drum cylinder

d)

solid drum cylinder

44.

Type of shelling unit with cylinder having shelling elements of knife bar or Pegtooth ____.

a)

cylinder-type

b)

drum-type

c)

disc-type

d)

rotary-type

45.

Pistillate inflorescence of the plant Zea mays L., enclosed with a leaf-like protective covering known as husk _____.

a)

corn ear

b)

tassel

c)

spadix

d)

catkin

46.

Max. Noise Level of Corn Sheller ____.

a)

100dB

b)

70dB

c)

50dB

d)

120dB

47.

For Corn Sheller testing, the Kernel-Ear Corn Ratio of samples is _____

a)

0.77 – 0.81

b)

0.60 – 0.65

c)

0.85 – 0.90

d)

0.50 – 0.55

48.

49. Major component of the corn mill used to reduce corn kernels into corn grits _____

a)

roller mill

b)

sifter

c)

dehuller

d)

separator

49.

50. Min. Main Product recovery of Corn Mill _____?

a)

64%

b)

55%

c)

70%

d)

60%

50.

51. Max. Total Losses of Corn Mill _____?

a)

5%

b)

10%

c)

2%

d)

8%

51.

Cutting mechanism consisting of fixed lower knife and reciprocating upper knife wherein its movement is controlled by the crank connected to the gear box or belt drive.

a)

reciprocating cutter knife

b)

rotary cutter knife

c)

laser cutter

d)

plasma cutter

52.

The rice reaper shall be operated using a minimum of _____ engine for a cutter bar cutting mechanism with _____ width of cut.

a)

3.5 hp (2.6 kW) and 1.2 m

b)

2.0 hp (1.5 kW) and 0.8 m

c)

5.0 hp (3.7 kW) and 1.5 m

d)

4.0 hp (3.0 kW) and 1.0 m

53.

The reaper shall be operated at the speed of _____

a)

3 kph to 5 kph

b)

1 kph to 2 kph

c)

6 kph to 8 kph

d)

10 kph to 12 kph

54.

Degree between the vertical line joining the center of the plant and the imaginary line where the stalk lodges _____

a)

lodging angle

b)

leaf angle

c)

tiller angle

d)

node angle

55.

For rice reaper testing, each test, with three replications, shall be carried out in the rectangular field with an area of not less than ____ with minimum length of _____

a)

750m², 30m

b)

500m², 20m

c)

1000m², 50m

d)

600m², 25m

56.

For rice reaper testing, the suggested operational pattern is _____

a)

Circuitous pattern

b)

Linear pattern

c)

Random pattern

d)

Zigzag pattern

57.

The rubber for rubber rollers shall have a minimum thickness of _____

a)

15 mm

b)

5 mm

c)

25 mm

d)

10 mm

58.

The rubber hardness shall be between ____ to ____ in the case of elastomers.

a)

80 shore, 90 shore

b)

60 shore, 70 shore

c)

70 shore, 80 shore

d)

50 shore, 60 shore

59.

When the rubber is subjected to heating test, the minimum value of hardness shall be _____ with maximum hardness drop of _____

a)

70 shore, 10 shore

b)

60 shore, 20 shore

c)

80 shore, 5 shore

d)

65 shore, 15 shore

60.

The tensile stress of the rubber roll shall be _____ to _____

a)

6 200 kPa to 8 268 kPa

b)

4 000 kPa to 5 000 kPa

c)

10 000 kPa to 12 000 kPa

d)

2 500 kPa to 3 500 kPa

61.

The modulus of elasticity of the rubber shall be ___ to ___.

a)

482 kPa to 689 kPa

b)

488 kPa to 889 kPa

c)

882 kPa to 686 kPa

d)

482 kPa to 699 kPa

62.

One roll should rotate ___% faster than the other.

a)

25%

b)

10%

c)

50%

d)

75%

63.

Clearance adjustment between the two hullers should be maintained at about ___ the thickness of the paddy/rough rice.

a)

½

b)

⅓

c)

¾

d)

1

64.

The noise emitted by the hammer mill, forage chopper, and coconut decorticator shall not be more than ___

a)

96 dB

b)

85 dB

c)

102 dB

d)

110 dB

65.

The noise emitted by the large ruminant's slaughterhouse equipment, particularly the stunning box (knocking pen) shall not be more than ___?

a)

96 dB

b)

85 dB

c)

110 dB

d)

120 dB

66.

The noise emitted by hog’s slaughterhouse equipment, particularly the hog restrainer, dehairing machine and splitting saw for hog carcass shall not be more than _____?

a)

96 dB

b)

85 dB

c)

102 dB

d)

110 dB

67.

These are devices intended to cut the crop into short lengths with reasonable consistency within a range of optional settings.

a)

Cutterhead / Cutting Rotor

b)

Threshing Drum

c)

Straw Walker

d)

Grain Auger

68.

It is a cylindrical roll generally with protrusions or flutes, used to gather, compress and advance the crop into the cutterhead.

a)

Feedroll

b)

Threshing drum

c)

Concave

d)

Straw walker

69.

It is a type of forage chopper where the chopped materials are dropped down to the bottom of machine.

a)

let-fall type

b)

blower type

c)

cylinder type

d)

rotary type

70.

Slow-moving vehicle emblem has a _____equilateral triangle inside and ______ reflective border at _____ mm.

a)

Fluorescent Yellow-Orange; Red-Retro; 45

b)

Fluorescent Red-Orange; Yellow-Retro; 45

c)

Fluorescent Yellow-Orange; Red-Retro; 55

d)

Fluorescent Red-Orange; Yellow-Retro; 55