TESTING AND EVALUATION Flashcards
The critical assessment of a machine or
of a process under a given set of operating
conditions.
a. Value engineering
b. Testing and evaluation
c. Pre-design stage
d. All of the above
Testing and evaluation
The criteria used in evaluating the
performance of a machine.
a. Machine and operator’s performance
b. Reliability of machine and cost of
operation
c. Environment and safety
d. All of the above
AOTA
In testing agricultural machines, as
prescribed in the PAES standard of test, it
should be operated by ___.
a. farmers
b. manufacturer(s) representative
c. accredited testing organization
d. None of the above
manufacturer(s) representative
A preliminary operation of the machine
to make various adjustments prior to the
conduct of test until the operation is stable.
a. Functionality Test
b. First Test
c. Running-In Period
d. None of the above
Running-In Period
During testing of agricultural machines,
thermometer sensors should be partially
shielded to minimize ___.
a. mechanical damage on thermometer
sensor
b. error on the effect of heat of radiation
c. error from heat of conduction from wall
of the machine
d. None of the above
error on the effect of heat of radiation
During the test of agricultural
machines, shaft speed is measured
using ___.
a. speedometer
b. velocity meter
c. tachometer
d. None of the above
tachometer
An instrument used to measure the
draft of a plow.
a. Dynamometer
b. Spring scale
c. Pressure gauge
d. All of the above
Dynamometer
The holding capacity of a mechanical
dryer during testing, as prescribed by
PAES, should be based on the ___ of the
sample and other accompanying
information such as moisture content
and purity.
a. volume
b. weight
c. density
d. None of the above
weight
Based on the PAES standard, milling
test of samples in testing a mechanical
grain dryer should be conducted at least
___ after drying.
a. 24 hours
b. 48 hours
c. 36 hours
d. None of the above
48 hours
A test carried out on each and every
part of an equipment to check the
specifications which are likely to vary
during production.
a. Acceptance test
b. Routine test
c. Inspection
d. None of the above
Routine test
The sensing instrument made of two
dissimilar wires used to measure the
temperature of air in a dryer.
a. Thermometer wire
b. Thermocouple wire
c. Thermo wire
d. All of the above
Thermocouple wire
The interval of time measurement of
test parameters in a heated-air mechanical
grain dryer, as specified in the PAES Test
Method.
a. 15 minutes
b. 30 minutes
c. 45 minutes
d. 60 minutes
e. None of the above
30 minutes
The minimum number of trial(s)
required in testing heated-air mechanical
grain dryer, as specified in the PAES.
a. One
b. Two
c. Three
d. None of the above
Two
The maximum moisture content of
grains to be used in testing mechanical
threshers should not be more than ___.
a. 18%
b. 24%
c. 28 %
d. None of the above
24%
The grain-straw ratio for samples to be
used for testing a mechanical rice thresher
should be at ___ range.
a. 0.35 to 0.50
b. 0.50 to 0.65
c. 0.65 to 0.80
d. None of the above
0.50 to 0.65
The required water temperature in
testing pumps.
a. 10°C and below
b. 10°C – 40°C
c. 40°C - 60°C
d. None of the above
10°C – 40°C
The pressure drop of air-moving
devices is usually measured using a ___.
a. pressure gauge
b. pitot tube
c. manometer
d. None of the above
manometer
The amount of material needed in
testing a thresher should be enough to
run the machine for at least ___ hour.
a. 1/2
b. 1
c. 2
d. All of the above
1
The recommended test material for
testing a rice thresher should have ___
straw length.
a. 30 to 45 cm
b. 45 to 50 cm
c. 50 to 65 cm
d. None of the above
45 to 50 cm
The minimum permissible noise for
power tillers.
a. 85 db
b. 92 db
c. 98 db
d. None of the above
92 db
The minimum area required for testing
a power-operated seeder.
a. Not less than 100 m2
b. Not less than 500 m2
c Not less than 1000 m2
d. None of the above
Not less than 1000 m2
The minimum operating time
required for testing a power tiller without
breakdown and malfunction.
a. 1 hour
b. 5 hours
c. 8 hours
d. None of the above
5 hours
The minimum number of hours
required in testing rice threshers based
on PAES standards.
a. 0.5 hour
b. 1 hour
c. 2 hours
d. None of the above
1 hour
An instrument used to measure the
speed of a windpump.
a. Manometer
b. Anemometer
c. Tachometer
d. None of the above
Anemometer
An instrument used to measure the
static pressure at the plenum chamber of
a dryer.
a. Manometer
b. Anemometer
c. Tachometer
d. None of the above
Manometer
An instrument used to determine the
acidity and alkalinity of a substance.
a. Refractrometer
b. pH meter
c. Moisture meter
d. None of the above
pH meter
An instrument used to measure the
amount of water present in a sample.
a. Hygrometer
b. Hydrometer
c. Moisture meter
d. All of the above
Moisture meter
A thermometer used in measuring
the temperature of a surface without the
sensor touching it.
a. Thermocouple wire sensor operated
thermometer
b. Bimetallic surface measuring
thermometer
c. Infrared thermometer
d. None of the above
Infrared thermometer
An instrument used in measuring the
velocity of water in a conveyance
channel.
a. Thermoanemometer
b. Anemometer
c. Current meter
d. None of the above
Current meter
The velocity of the air passing
through the duct of the blower of a dryer
is to be determined, what instrument
would you recommend to measure the
velocity?
a. Manometer
b. Thermometer
c. Thermoanemometer
d. None of the above
Thermoanemometer
Which of the following cannot be
used in measuring the velocity of the air?
a. Anemometer
b. Pitot-tube and manometer
c. Orifice and manometer
d. None of the above
nota
The rate of flow of hot gas is to be
measured in a duct. As an Agricultural
Engineer, what instrument would you
recommend to determine the velocity of
the gas?
a. Thermoanemometer
b. Current meter
c. Pitot-tube manometer
d. None of the above
Pitot-tube manometer
Air velocity at the air duct can be
measured using a manometer by taking
the ___.
a. static pressure
b. velocity pressure
c. velocity and static pressure
d. None of the above
velocity and static pressure
The amount of current passing
through a wire can be measured using
___.
a. voltmeter
b. ammeter
c. Hertz meter
d. None of the above
ammeter
Voltmeter is connected to a wire in
___ to measure voltage.
a. series
b. parallel
c. series and parallel
d. All of the above
parallel
AC Clamp meter is connected to a
wire in ___ to measure the amperage.
a. series
b. parallel
c. series and parallel
d. None of the above
nota
Usually in determining the ambient
conditions during testing of a mechanical
dryer, the surrounding ___ are measured.
a. air temperature and humidity
b. air temperature and velocity
c. air velocity and humidity
d. None of the above
air temperature and humidity
In order to measure the power input
in a motor, the ____ are measured and
then multiplied with the power factor.
a. voltage and hertz
b. current and hertz
c. voltage and current
d. None of the above
voltage and current
The Hertz meter is connected in ___
to measure the cycle of the lines.
a. series
b. parallel
c. series and parallel
d. None of the above
parallel
The unit of noise level of a sound
meter is expressed in ___.
a. hertz
b. decibels
c. % loudness
d. None of the above
decibels
The actual field capacity of a tractor
and plowing implement can be
determined by ___.
a. measuring the velocity of travel of the
tractor multiplied by the width of cut of
the implement
b. measuring the area plowed by the
tractor divided by the time it finishes the
operation
c. measuring the area plowed by the
tractor multiplied by the travel speed
d. None of the above
measuring the area plowed by the
tractor divided by the time it finishes the
operation
When measurement needs to be
done to gather sets of data in a defined
period of time, what instrument would
you recommend to be included in your
instrumentation set-up as an Agricultural
Engineer?
a. Data encoder
b. Data compiler
c. Data logger
d. None of the above
Data logger
An electronic device that records
data over time.
a. Data logger
b. Data encoder
c. Data compiler
d. None of the above
Data logger
Which thermocouple-wire sensor has
the ability to measure higher temperature
(up to 1260°C)?
a. Type C
b. Type J
c. Type K
d. None of the above
Type K
The low-temperature thermocouplewire sensor.
a. Type T
b. Type J
c. Type K
d. None of the above
type T
A thermocouple wire made of copper
and constantan wires.
a. Type T
b. Type J
c. Type K
d. All of the above
Type T
A thermocouple-wire sensor
consisting of chromel and alumel wires.
a. Type T
b. Type J
c. Type K
d. All of the above
Type K
When testing a mechanical grain dryer,
the static pressure can be measured using
a ___.
a. pressure gage
b. manometer
c. vacuum gage
d. All of the above
manometer
When testing a rice mill, the
throughput capacity is determined as ___.
a. weight of paddy input over time
b. weight of brown rice output over time
c. weight of milled rice output over time
d. None of the above
weight of milled rice output over time
When testing a paddy dryer, the
capacity is determined by the ___.
a. weight of input paddy
b. weight of dried paddy
c. weight of dried paddy over time
d. None of the above
weight of input paddy
When testing a rice thresher, the
throughput capacity is ___.
a. weight of clean threshed grain over
time
b. weight of panicle fed over time
c. weight of paddy input after removing
the straw over time
d. None of the above
weight of clean threshed grain over
time
A customized device in which all the
instruments are set to facilitate testing of
a machine.
a. Test rig
b. Test duct
c. Test instrument
d. None of the above
Test rig
In testing animal-drawn and poweroperated agricultural machines, the test
plot is required to be in a ___ shape.
a. square
b. triangular
c. rectangular
d. None of the above
rectangular
The required length-to-width ratio of a
test plot for animal-drawn and poweroperated agricultural machines.
a. 2:1
b. 4:2
c. 6:3
d. All of the above
e. None of the above
AOTA
In testing agricultural machines, the
first thing that the engineer must do is
___.
a. to prepare the instruments and data
sheet needed for the test
b. to get acquainted with the
construction and operation features of the
machine
c. to figure out what testing procedure
to be done
d. None of the above
to get acquainted with the
construction and operation features of the
machine
Which of the following available
information need to be looked into by the
test engineer before testing a machine?
a. Instruction book
b. Operation manual
c. Technical information
d. All of the above
e. None of the above
AOTA
The amount of fuel consumed by a
machine during the test can be simply
determined by ___.
a. measuring the amount of fuel
remaining in the tank after testing using a
volumetric flask
b. filling the tank with fuel and the
amount of fuel added to make the tank
full is the amount of fuel used
c. starting with empty tank and then the
amount of fuel gradually added is the
amount of fuel used
d. All of the above
filling the tank with fuel and the
amount of fuel added to make the tank
full is the amount of fuel used
The required distance in measuring
the operational speed of an agricultural
machine during testing.
a. 10 m
b. 20 m
c. 30 m
d. None of the above
20 m
Preliminary tests need to be done in
testing the machine so the machine will
___.
a. be easy to be tested
b. be seen by test engineers and helpers
before testing it
c. be kept in best working condition
d. None of the above
be kept in best working condition
Adjusting the machine should be
done when testing as per
recommendation by ___.
a. the operator
b. the manufacturer
c. the test engineer
d. None of the above
the manufacturer
When testing agricultural machines,
the testing operator must be ___ the
machine.
a. strong enough to operate
b. well knowledgeable with the design of
c. fully conversant with the operation of
d. None of the above
fully conversant with the operation of
The difference in the distance
traveled by the tractor tire in 10
revolutions with and without load during
the tests over the distance traveled at no
load times 100 is the ___ of the tractor.
a. percentage downtime efficiency
b. percentage traction efficiency
c. percentage wheel slip
d. None of the above
percentage wheel slip
Accurate data can be obtained during
testing when ___.
a. appropriate instrumentation is used
b. the instruments to be used are
properly calibrated
c. testing is to be done by a skillful
technician
d. All of the above
AOTA
In testing the field capacity and field
efficiency of a machine, the ___.
a. non-working time should be
eliminated
b. overall time used should be
considered
c. speed of the machine should only be
considered
d. None of the above
non-working time should be
eliminated
A spring, hydraulic or strain-gauge
operating device that measures the
capacity required in pulling a machine.
a. Load cell
b. Spring scale
c. Dynamometer
d. None of the above
Dynamometer
In testing a mechanical paddy grain
dryer during the wet harvest season, the
required moisture of samples to be used
must be at ___.
a. 20% +/- 1.0%
b. 23% +/- 1.2%
c. 25% +/- 1.0%
d. None of the above
25% +/- 1.0%
In testing a mechanical paddy dryer
during the dry harvest season, the
required moisture of paddy samples must
be at ___.
a. 20% +/- 1.0%
b. 23% +/- 1.2%
c. 25% +/- 1.0%
d. None of the above
20% +/- 1.0%
The line of pull to determine the
drawbar horsepower of a machine is the
___ line of pull measured by the drawbar
dynamometer.
a. horizontal
b. inclined
c. vertical
d. None of the above
horizontal
The effective field capacity of the
machine is the area tilled over the ___.
a. productive time
b. non-productive time
c. productive and non-productive time
d. None of the above
productive and non-productive time
In testing rice threshers, the
threshing efficiency is determined by the
amount of ___.
a. threshed grains received at all outlets
divided by the total grain input times 100
b. threshed grains received at all the
outlets divided by the input paddy fed
into the machine multiplied by 100
c. threshed grains from the paddy straw
outlet to the total grain input multiplied
by 100
d. None of the above
Threshed grains received at all outlets
divided by the total grain input times 100
In testing rice threshers, the
threshing recovery is determined by the
amount of ___, expressed as percent by
weight.
a. threshed grains at the main outlet of
the thresher with respect to the weight
of paddy and panicle input
b. threshed grains at the main outlet of
the thresher with respect to the total
grain input
c. threshed grains from the different
outlets with respect to the total grain
input
d. None of the above
threshed grains from the different
outlets with respect to the total grain
input
The total grain input to the thresher
includes the ___.
a. weight of threshed grains collected at
the main grain outlet per unit time
b. weight of threshed grains collected at
all outlets per unit time
c. weight of unthreshed grains from all
outlets per unit time
d. All of the above
All of the above
Which of the following criteria is
considered in evaluating rice threshers?
a. Applicable kind of crops
b. Output capacity
c. Machine vibration
d. Power requirement
e. Labor requirement
f. Ease of adjustment, cleaning and
replacement
g. Operating cost of the machine
h. All of the above
i. Three of the above
AOTA
