Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Wala lang trip lang > Mechanization, Power, Machinery & Equipment & Allied Subjects (HIGH PRIO) > Flashcards

Mechanization, Power, Machinery & Equipment & Allied Subjects (HIGH PRIO) Flashcards

1
Q

Which of the following is not part of a force pump?
a. inlet valve
b. piston
c. plunger
d. discharge valve

A

b. piston

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What do you call a device that forces more fuel mixture into the cylinders than would be drawn in under normal atmospheric conditions, thus making possible greater power output with the same piston displacement?
a. carburetor
b. supercharger
c. throttle
d. venturi

A

b. supercharger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Arrange the following according to the management process.
i. Selecting the right employees for the right position
ii. Formulation of the mission, vision, goals, objectives and activities of the organization
iii. Conducting of annual performance evaluation of employees.
iv. Coordinating the employees and material resources of the organization.
v. Orientation of personnel for the proper achievement of goals.
a. i, ii, iii, iv, v
b. ii, iv, I, iii, v
c. ii, I, v, iv, iii
d. ii, iv, I, v, iii

A

d. ii, iv, I, v, iii

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The gasoline engine is characterized as:
a. low first cost – high operating cost
b. low first cost – low operating cost
c. high first cost – high operating cost
d. high first cost – low operating cost

A

a. low first cost – high operating cost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The thermal efficiency and mechanical efficiency of an engine are 40% and 72%, respectively. Determine the power equivalent of the fuel used if the brake horsepower is 1.35 hp.
a. 2.0 kW
b. 4.0 kW
c. 2.5 kW
d. 3.5 kW

A

d. 3.5 kW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A belt delivers a tangential force of 150 N on a half meter radius pulley at a speed of 380 rev/min. What will be the power?
a. 2.0 kW
b. 0.5 kW
c. 3.0 kW
d. 3.5 kW

A

c. 3.0 kW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Commodity surplus occurs when the selling price is ____(X) ___, but equilibrium is attained when the sellers agree to sell at a price at which _____(Y)_____ are willing to buy.
a. X = High; Y = Vendors
b. X = Low; Y = Vendors
c. X = Low; Y = Consumers
d. X = High; Y = Consumers

A

d. X = High; Y = Consumers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

For a 4-inch by 4-inch centrifugal pump with discharge of 250 gpm, determine the size of the diesel engine. Efficiency of the pump is 65%, of
the belt transmission is 95%, and of the air-cooled system is 80%. Total head is 30 ft.
a. 2.9 hp
b. 3.1 hp
c. 3.8 hp
d. 2.5 hp

A

c. 3.8 hp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which pair is mismatched?
a. consumer good – personal effects
b. service – housecleaning
c. inelastic demand – food
d. producer good – clothes

A

d. producer good – clothes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Of corresponding size and speed, single-cylinder engines compared to multi-cylinder engines will require __________ flywheels.
a. Lighter
b. thinner
c. heavier
d. a or b

A

c. heavier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The windmill for water pumping is characterized as:
a. low torque – high speed
b. high torque – high speed
c. high torque – low speed
d. low torque – low speed

A

c. high torque – low speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If money is worth 8.7% simple interest, how long (in months) from today will the value become P37,501.50 of a debt of P36,000.50 due 6 months from today?
a. 0
b. 2
c. 4
d. 12

A

d. 12 months

FV = PVxrxt
t = (37,501.5)/(0.087x36,000.50) = 12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which of the following agencies is not based in a university?
a. AMTEC
b. PhilSCAT
c. AMDP
d. PCARRD

A

d. PCARRD

a. AMTEC -UPLB
b. PhilSCAT -CLSU
c. AMDP -UPLB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The following are considered discounted measures of project worth, except:
a. payback period
b. internal rate of return
c. benefit-cost ratio
d. net present value

A

a. payback period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

General-purpose tillage involves cutting and pulverizing the soil to a depth of:
a. up to 3 inches
b. up to 6 inches
c. up to 12 inches
d. up to 18 inches

A

b. up to 6 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Bend downward of the point of the share to make the plow penetrate the soil to the proper depth is:
a. tilt angle
b. disc angle
c. horizontal suction
d. vertical clearance

A

d. vertical clearance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Width of cut of the disc plow is influenced by:
a. disc diameter
b. depth of cut
c. disc angle
d. all of the above

A

d. all of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

In the equation C = SWEff/10, W is width of cut expressed in:
a. ft.
b. m
c. km
d. mile

A

b. m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

General-purpose tillage equipment is used in:
a. 2-wheel tractor for wetland op.
b. 4-wheel tractor for dryland op.
c. 4-wheel tractor for wetland op.
d. all of the above

A

d. all of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Planter designed to place seedlings in rows and in hills is called:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. transplanter

A

d. transplanter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The IRRI drum seeder is an example of:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster

A

c. solid drill planter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

In the equation for horsepower, Hp = QH/3960Eff, H is total head in:
a. ft.
b. ft/min
c. meters
d. meters/min

A

a. ft.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The power unit for driving centrifugal pumps for household use is usually:
a. electric motor
b. gasoline engine
c. diesel engine
d. kerosene engine

A

a. electric motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The most recently developed system of harvesting and threshing of rice is:
a. mechanical harvesting & threshing
b. combining
c. stripping
d. all of the above

A

c. stripping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

A machine that cuts standing crop, conveys the cut crop to one side, and lays them down in an orderly manner is called:
a. sickle
b. reaper-windrower
c. reaper-binder
d. stripper

A

b. reaper-windrower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The Japanese combine is characterized as:
a. low power & hold-on feeding
b. low power & throw-in feeding
c. high power & hold-on feeding
d. high power & throw-in feeding

A

a. low power & hold-on feeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

A 4-ha field was plowed using a three-bottom 12-inch tractor-mounted moldboard plow. It took 11 hrs to complete the operation at a tractor speed of 5 kph. Find the theoretical field capacity:
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr

A

a. 0.46 ha/hr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

How many times greater is the power of a carabao over man?
a. 0.1
b. 1.0
c. 10
d. 100

A

c. 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The fertility of a particular field is such that maximum corn yield is obtained with a population of 54,000 plants per hectare. A checkrow corn planter is used which discharges 2 seeds/hill. Average emergence is 85%.
Row spacing = hill spacing. Find the spacing:
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m

A

a. 0.56 m

Nh = (54,000 plants)/(0.85x2 seeds/hill) = 31765 hills

Rs x Hs = (10,000 m2)/31765 hills = 0.31 m2

Rs = sqrt(0.31) = 0.56 m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Select two consecutive farm operations which when done mechanically can
increase cropping intensity:
a. planting – spraying
b. irrigation – weeding
c. harvesting – plowing
d. harvesting – threshing

A

c. harvesting – plowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Which of the following operation is not done by a stripper?
a. cutting of standing crop
b. stripping
c. cleaning of grains
d. conveying of grains to the tank

A

a. cutting of standing crop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

The cutting mechanism most commonly employed by reapers and combines is:
a. slicing & tearing
b. high velocity, single-element, impact action
c. two-element, scissor-type action
d. all of the above

A

c. two-element, scissor-type action

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The IRRI axial-flow thresher is characterized as:
a. low power & hold-on feeding
b. low power & throw-in feeding
c. high power & hold-on feeding
d. high power & throw-in feeding

A

d. high power & throw-in feeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What section is not yet included in the PAES as of 2014?
a. Production/postharvest machinery
b. Irrigation and drainage
c. agricultural structures
d. engineering materials

A

b. Irrigation and drainage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

A 4-ha field was plowed using a three-bottom 12-inch tractor-mounted moldboard plow. It took 11 hrs to complete the operation at a tractor speed of 5 kph. Find the actual field capacity:
a. 0.09 ha/hr
b. 0.5 ha/hr
c. 0.36 ha/hr
d. 1.5 ha/hr

A

c. 0.36 ha/hr

AFC = 4 ha / 11 hrs = 0.36 ha/hr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Which is true about V-belt and pulley drive?
a. It cannot be used for long center distance drive.
b. Efficiency drops with small pulley size.
c. Its application is limited only for parallel drive.
d. Excessive high load increases efficiency.

A

b. Efficiency drops with small pulley size.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Parameter not required in determining the field capacity of a planter:
a. width of planter
b. forward speed of planter
c. No. of seeds per hill
d. efficiency of planter

A

c. No. of seeds per hill

38
Q

Type of soil working parts utilized by push-type weeders for wetland operation:
a. blade type
b. tine type
c. rotary type
d. all of the above

A

c. rotary type

39
Q

Which of the following is not measured in calibrating a sprayer?
a. nozzle discharge
b. effective working width
c. walking speed
d. application rate

A

d. application rate

40
Q

Which of the following does not belong to the group of positive displacement pumps?
a. lift pump
b. force pump
c. rotary pump
d. propeller pump

A

d. propeller pump

41
Q

According to the National Irrigation Administration (NIA), water requirement for rice production is:
a. 5 mm/day
b. 10 mm/day
c. 15 mm/day
d. 20 mm/day

A

b. 10 mm/day

42
Q

If the specific yield of a particular well is 3 gpm/ft drawdown and the discharge rate of the pump is 30gpm, the total drawdown is:
a. 1 ft
b. 3 ft
c. 10 ft
d. 30 ft

A

c. 10 ft

Total drawdown = (30 gpm)/(3 gpm/ft-drawdown)

43
Q

It is made by partial combustion of carbonaceous substances like coal and wood.
a. natural gas
b. propane
c. LPG
d. producer gas

A

d. producer gas

44
Q

The tractor is generally characterized as:
a. high speed – heavy load
b. high speed – light load
c. low speed – heavy load
d. low speed – light load

A

c. low speed – heavy load

45
Q

A farmer figured that he needed 8 pieces 2” x 4” x 12’ and 10 pieces 2” x 3” x 12’ lumber to make tables and chairs for their barangay hall. He availed them from a newly-opened local
hardware shop, named J.E.R. Hardware Supplies,
which charges P25 for every board foot of
lumber. However, to gain patronage, the shop gave 15% discount for the first 50 board feet of
purchased lumber. How many board feet of lumber are needed for the farmer’s project?
a. 248
b. 156
c. 62
d. 124

A

bd.ft. (ft^2-in) = 8(2x4x12)/12 + 10(2x3x12)/12

d. 124

46
Q

How many degrees has the crankshaft rotated if the piston has traveled 4.25 cm with respect to its top dead position in a 3.5” by 5” diesel engine?
a. 60 degrees
b. 45 degrees
c. 90 degrees
d. 75 degrees

A

a. 60 degrees

180 degrees per stroke.

4.25 cm / 5 in (2.54 cm/in) = 0.33

33% of 180 = 60 degrees

47
Q

The three main sources of power for mechanization include:
a. human, animal & mechanical
b. human, electrical & mechanical
c. animal, electrical & mechanical
d. human, animal & electrical

A

a. human, animal & mechanical

48
Q

Before the adoption of mechanized harvest and postharvest operations for rice, field losses were:
a. 5 – 15%
b. 10 – 27%
c. 10 – 37%
d. 20 – 30%

A

c. 10 – 37%

49
Q

In optimizing the capacity of a machine, it is recommended to have:
a. one small machine
b. one big machine
c. two or more small machines
d. all of the above

A

c. two or more small machines

50
Q

Primary tillage involves cutting the soil to a depth of:
a. up to 3 inches
b. 3 to 6 inches
c. 6 to 18 inches
d. 6 to 36 inches

A

d. 6 to 36 inches

51
Q

Primary tillage equipment that cuts the soil to a depth of 6 to 18 inches is called:
a. moldboard plow
b. subsoiler
c. chisel plow
d. spiral plow

A

a. moldboard plow

52
Q

The perpendicular distance between the wing and point of the share determines the:
a. longitudinal dimension of plow
b. transverse dimension of plow
c. diagonal dimension of plow
d. maximum dimension of plow

A

b. transverse dimension of plow

53
Q

Draft of plows is primarily determined by:
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow

A

a. type of soil

54
Q

How many volumes of PAES were adopted by the Department of Agriculture?

A

four

55
Q

A 4-ha field was plowed using a three-bottom 12-inch tractor-mounted moldboard plow. It took 11 hrs. to complete the operation at a tractor speed of 5 kph. Find the theoretical field capacity:
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr

A

a. 0.46 ha/hr

TFC = SW/10
TFC = (3)(12 in)(0.0254 m/in)(5 kph)/10

56
Q

The acronym PAES means:
a. Philippine Agricultural Engineering Society
b. Professional Agricultural Engineering Society
c. Philippine Agricultural Engineering Standards
d. Professional Agricultural Engineering Standards

A

c. Philippine Agricultural Engineering Standards

57
Q

The development of PAES started in:
a. 1985
b. 1990
c. 1995
d. 2000

A

d. 2000

58
Q

The word used to indicate requirements strictly to be followed in order to conform to the standard and from which no deviation is permitted:
a. Shall
b. Should
c. a or b
d. none of the above

A

a. Shall

59
Q

The Consumer Act of the Philippines of is covered under:
a. DA AO 11 S2001
b. PRC BR 05 S2002
c. RA 7394
d. RA 8559

A

c. RA 7394

60
Q

Agency of the government charged with the development of the Philippine National Standards (PNS):
a. BOAE-PRC
b. NAFC-DA
c. BPS-DTI
d. DOH

A

c. BPS-DTI

61
Q

Two persons are threshing by “Hampasan” method. What is the total human power generated by the two persons in one day if they work at an average of 6 hours?
a. 0.5 hp/person; 1.0 hp
b. 0.15 hp/person; 0.30 hp
c. 0.11 hp/person; 0.22 hp
d. 0.12 hp/person; 0.24 hp

A

c. 0.11 hp/person; 0.22 hp

Power of mature human being = 0.1 hp

Closest in the choices is 0.11 hp.

62
Q

It is the peak of the turned furrow slice.
a. Furrow crown
b. Furrow slice
c. Furrow wall
d. None of the above

A

a. Furrow crown

63
Q

Threshing efficiency basically is determined from weight of grain obtained at the ___ to the grain input fed at the feeding trays.
a. straw outlet
b. oscillating screen outlet
c. blower outlet
d. All of the above

A

a. straw outlet

64
Q

Grain-straw ratio requirement for testing a rice thresher ranges from ___.
a. 0.35 to 0.50
b. 0.50 to 0.65
c. 0.65 to 0.80
d. All of the above

A

b. 0.50 to 0.65

65
Q

Ignition of fuel in a gasoline fuel engine usually starts when the piston is __________.
a. at the top dead center
b. moving downward the bottom dead center
c. approaching the top dead center
d. None of the above

A

c. approaching the top dead center

66
Q

It is the power developed by the engine of a tractor which is available for pulling, dragging or similar tractive effort.
a. belt horsepower
b. brake horsepower
c. drawbar horsepower
d. indicated horsepower

A

c. drawbar horsepower

67
Q

One way of increasing engine power is to force more air into the cylinder so that more power can be produced from each power stroke. This process which uses a type of air compression device powered by the engine crankshaft is
called:
a. turbocharging
b. supercharging
c. power charging
d. air charging

A

b. supercharging

68
Q

The mechanical manipulation of soil for any purpose.
a. Land grading
b. Tillage
c. Earth moving
d. None of the above

A

b. Tillage

69
Q

The pushing or rolling of soil by a steeply inclined blade.
a. Bulldozing
b. Chiselling
c. Subsoiling
d. None of the above

A

a. Bulldozing

70
Q

The draft of a plow is dependent on the ___.
a. size of the plow
b. plowing depth
c. type of soil
d. All of the above

A

d. All of the above

71
Q

The factors that affect the draft of the plow:
a. Soil condition
b. Hitch to the tractor
c. Topography
d. All of the above

A

d. All of the above

72
Q

What is the force required to pull a single-moldboard plow on a clay-loam soil having a width and depth of cut of 30 cm and 15 cm, respectively. Soil draft is 8 psi.
a. 314 kg
b. 253 kg
c. 157 kg
d. None of the above

A

b. 253 kg

F = (30 cm)(15 cm)(1 in/2.54 cm)^2(8 psi)(1 kg/2.2 lb) = 253 kg

73
Q

The effective field capacity of the rotary tiller tilling theoretically at 0.4 ha/hr for efficiency of 85% is ___.
a. 0.34 ha/hr
b. 0.24 ha/hr
c. 0.43 ha/hr
d. None of the above

A

a. 0.34 ha/hr

74
Q

The effective field capacity of 2 moldboard plows having 25-cm width each plowing at a speed of 7 km/hr for a field efficiency of 80% is ___.
a. 0.20 ha/hr
b. 0.28 ha/hr
c. 0.32 ha/hr
d. 0.32 ha/hr

A

b. 0.28 ha/hr

75
Q

A mechanically-operated machine that removes weeds or grasses from the crops.
a. Seeder
b. Weeder
c. Cultivator
d. None of the above

A

b. Weeder

76
Q

The ratio between the number of weeds removed by the weeder to the number
of weeds present per unit area.
a. Weeding index
b. Weeding rate
c. Weeding capacity
d. None of the above

A

a. Weeding index

77
Q

When a machine is driven directly from the shaft of a power source, the power is transmitted using ___.
a. gear drive
b. sprocket and chain drive
c. direct drive
d. None of the above

A

c. direct drive

78
Q

If 10-Hp engine drive has a belt capacity rating of 4.5 hp per belt, how many pieces of belts are needed for the drive?
a. 1 to 2 belts
b. 2 to 3 belts
c. 4 to 6 belts
d. None of the above

A

b. 2 to 3 belts

79
Q

A rice thresher is to be driven by a 10-hp gasoline engine using V-belt drive. The engine speed is 1800 rpm while the thresher cylinder speed is 650 rpm. The diameter of the engine pulley is 4 inches. What will be the recommended diameter of the thresher’s pulley?
a. 6 in.
b. 11 in.
c. 14 in.
d. None of the above

A

b. 11 in.

80
Q

What is the recommended belt size for the B-type V-belt needed for the drive if its engine pulley and thresher pulley are 4 in and 11 in, respectively, and if its center distance is 60 in.?
a. B169
b. B144
c. B196
d. None of the above

A

b. B144

81
Q

The recommend size of the shaft for the thresher above is ___.
a. ½ in.
b. ¾ in
c. 1 in
d. None of the above

A

b. ¾ in

82
Q

A diesel engine that operates at 2500 rpm will be used to drive an irrigation pump, which should turn at 1000 rpm. The pulley diameter for the pump is 4 inches. What is the recommended pulley diameter for the engine?
a. 2 in.
b. 4 in.
c. 10 in.
d. None of the above

A

a. 2 in.

83
Q

The ratio between the mass of fuel consumed per unit time and the corresponding power measured.
a. Specific fuel consumption
b. Fuel to mass ratio
c. Fuel consumption rate
d. None of the above

A

a. Specific fuel consumption

84
Q

Assume that you are the Agricultural Engineer in-charge of a 500-hectare corn farm with soil type that gives 10 psi draft when plowing at a speed of 4 km/hr. Compute the drawbar horsepower required to pull a three-disk plow with 12 inches effective cut per disk at 6 inches plowing depth.
a. 14.3 hp
b. 23.4 hp
c. 34.5 hp
d. None of the above

A

a. 14.3 hp

85
Q

Calculate the drawbar hp required to pull a plow with 3X14-in bottoms at the rate of 3.25 mph if the specific draft is 8 psi and depth of cut is 7
inches.
a. 6.8 hp
b. 13.6 hp
c. 20 hp
d. 27.2 hp

A

c. 20 hp

86
Q

As a rule of thumb, single-phase alternating current electric motor should be used for applications requiring:
a. < 4 hp
b. < 5 hp
c. < 6 hp
d. < 7 hp

A

b. < 5 hp

87
Q

The projection of cash inflow and outflow of a farm to estimate the incremental net benefit of the life of the project is known as:
a. Farm budget
b. Farm plan
c. Farm inventory
d. Farm contract

A

a. Farm budget

88
Q

The gearbox placed on first gear will develop…
a. high torque - high speed
b. low torque – low speed
c. high torque – low speed
d. low torque – high speed

A

c. high torque – low speed

89
Q

Tractor A can cover a 1-Ha field in 2 hrs, tractor B in 3 hrs, and tractor C in 6 hrs. How long will it take to cover a 1-Ha field if the three tractors worked together?
a. 0.5 hr
b. 1.0 hr
c. 1.5 hr
d. 2.0 hr

A

b. 1.0 hr

90
Q

A transaction by your company this year involving the repayment in cash of a portion of the long-term loan of the company in the amount of P 70,000.00 would have the following effect:
a. increase in assets = increase in liabilities
b. decrease in assets = decrease in liabilities
c. increase in assets = increase in ownership
d. increase in one asset= decrease in another asset

A

decrease in assets = decrease in liabilities

Wala lang trip lang (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions