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Area 1 Eya > Part 6 > Flashcards

Part 6 Flashcards

1
Q

When welding deposit is applied to strengthen peg-tooth of a rice thresher, this method of treating metal is used.

Heat treatment
Welding
Hard facing
None of the above

A

Answer: Hard facing

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2
Q

Mixing of two or more substances wherein one of which is metal

Casting
Forging
Alloying
None of the above

A

Answer: Alloying

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3
Q

If some belts on multiple v-belt drive are worn out, it is recommended that

Worn-out belts should be immediately replaced
All belts should be replaced
Wait until all belts are worn-out before replacing the belts
None of the above

A

Answer: All belts should be replaced

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4
Q

Which of the following v-belt is larger and stronger?

Type A
Type B
Type C
All of the above

A

Answer: Type C

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5
Q

Commonly used V-belt for agricultural operation in the Philippines

Type A
Type B
Type C
All of the above

A

Answer: Type B

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6
Q

A service offered by manufacturers in repairing and replacing unintentionally damaged part of a machine to its customers for a specific period.

Manufacturing service
Customer’s Service
After-sales service
All of the above

A

Answer: After-sales service

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7
Q

Cost of machine including shipment.

Free-on board
Freight-on-board
Cost-in-freight
None of the above

A

Answer: Cost-in-freight

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8
Q

The strength, durability, and service of a farm machine depends largely on

Cost of material
Weight of material
Quality of material
All of the above

A

Answer: Quality of

material

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9
Q

A substance commonly used as coating to protect iron against corrosion.

Tin
Zinc
Aluminum
All of the above

A

Answer: Zinc

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10
Q

When buying flat belt, the common parameters used are

Width and thickness
Width and ply no.
Width and weight
None of the above

A

Answer: Width and ply no.

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11
Q

A v-belt whose specification is B-32 means\

Type B with circumferential length of 32 inches
Type B with circumferential length of 32 cm
Standard type v-belt whose strength is 32 times stronger than type B
None of the above

A

Answer: Type B with circumferential length of 32 inches

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12
Q

In a variable-pitch sheaves, the recommended belts used are

Double v-belt
Timing v-belt
Adjustable speed belt
None of the above

A

Answer: Adjustable speed belt

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13
Q

A device that gives mechanical advantage.

Fulcrum
Pulley
Wheel and axle
All of the above

A

Answer: All of the above

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14
Q

The smallest gears that are meshing together.

Spur
Bevel
Pinion
All of the above

A

Answer: Pinion

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15
Q

A type of gear used for power-take off drive.

Worm gear
Spur gear
Spline shaft gear
None of the above

A

Answer: Spline shaft gear

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16
Q

If roller chain number 40 is to be replaced by no. 60, the strength of chain is

Decreased
Increased
Remain except the size
None of the above

A

Answer: Increased

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17
Q

The ASAE designation for adjustable speed v-belt is

HA to HD
HAA to HCC
HI to HO
All of the above

A

Answer: HI to HO

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18
Q

A component part of machine that transmits torque and speed is

Bearing
Shaft
Chain
None of the above

A

Answer: Shaft

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19
Q

If the shaft of an engine rotates at the same speed with the shaft of the driven machine on the same axis, the transmission system is

Belt and pulley
Sprocket and chain
Direct couple drive
None of the above

A

Answer: Direct couple drive

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20
Q

A pulley that is used to tighten belt in a drive system.

Flat pulley
Idler pulley
V-pulley
None of the above

A

Answer: Idler pulley

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21
Q

A grove that is placed on a shaft to prevent pulley from slippage.

Keyway
Keyhole
Key
None of the above

A

Answer: Keyway

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22
Q

The recommended drive to transmit power to a shaft located about 6 meters is

Chain drive
Gear drive
V-belt drive
None of the above

A

Answer: _______

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23
Q

If the desired rotation for two parallel shafts is counterclockwise, what flat-bed drive would you recommend?

Open drive
Quarter turn drive
Cross drive
All of the above

A

Answer: Cross drive

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24
Q

If large target factor of safety is used in the design, product would tend to

Reliable
Expensive
Efficient
None of the above

A

Answer: Expensive

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25
Standards are used in the design basically to Reduce cost of product Minimize potential liability in designing a product Provide easy mechanism for interchanging machinery parts. All of the above
Answer: All of the above
26
A metal sheet with gauge number equal to 14 means 14 mm thick 14 pieces of metals sheet in a stock 14 pieces in one inch thickness None of the above
Answer: 14 pieces in one inch thickness
27
A 4 feet wide x 8 feet long with 1/8-in. thick is Metal sheet Metal plate Metal strip None of the above X
Answer: Metal plate
28
A material commonly used as axle of agricultural machines Cold rolled steel shaft Malleable steel round bar Round cast iron None of the above
Answer: Cold rolled steel shaft
29
The factor that affects the horsepower requirement of a shaft. Torque rpm shaft Peripheral velocity of shaft All of the above
Answer: All of the above
30
Flat pulleys are provided with crown to Keep the required tension of belt Prevent belt slippage Make the pulley durable None of the above
Answer: Prevent belt slippage
31
If the driver pulley diameter is increased, the speed of the driven pulley will Decrease Increase Rotate at the same speed None of the above
Answer: Increase
32
If the two shafts are perpendicular with each other, what type of driven system would you recommend? Flat belt V-belt Sprocket and chain All of the above
Answer: Flat belt
33
The transmission ratio of power tiller ranged from 1:2 to 1:4 1:7 to 1:10 1:12 to 1:16 All of the above
Answer: 1:7 to 1:10
34
A gauge 20 metal sheet in a 2-inch pile of sheet has 20 sheets 40 sheets 60 sheets None of the above
Answer: 40 sheets
35
An alloy basically consists of One metal Two metals or more One metal and one non-metal None of the above
Answer: Two metal or more metals
36
Steel bars which are commonly used in the construction of agricultural machines. Spring steel Mild steel Cold rolled steel None of the above
Answer: Mild steel
37
A steel bars used as machine axle is Hot rolled steel Cold rolled steel Mild steel None of the above
Answer: Cold rolled steel
38
It is a welding process that uses an electrode. Gas welding Resistance welding Arc welding None of the above
Answer: Arc welding
39
The standard length of bars available at the hardware is 10 ft. 20 ft. 30 ft. None of the above
Answer: 20 ft.
40
The higher schedule specification of pipe, the lower is its Length Nominal diameter Thickness None of the above
Answer: None of the above
41
The higher is the gauge number of metal sheet, the lower is the Thickness Width Length None of the above
Answer: Thickness
42
A welding process commonly used for thin sheets of metal. Brazing Soldering Spot welding None of the above
Answer: Soldering
43
It is the process of making metal product by pouring melted metal into a mold and then allowed to cool. Hot working process Casting Powder metallurgy None of the above
Answer: Casting
44
A machine tool used to reduce the diameter of a metal. Router Power drill Lathe None of the above
Answer: Lathe
45
It is a process of cutting hole to a material by means of shearing process. Drilling Punching Boring None of the above
Answer: Punching
46
A sand paper with number of C-300 is finer than C-120 C-400 C-600 None of the above
Answer: C-120
47
A screw used to fix metal parts together. Self-tapping screw Cap screw Lag screw None of the above
Answer: Self-tapping screw
48
A screw with shield to fix material property together. Cap screw Tex screw Self-tapping screw None of the above
Answer: None of the above
49
If a metal has a thickness of less than 1/8 inch it is called as Strips Sheet Plate All of the above
Answer: Sheet
50
When buying angle bars, the right specification is Thickness and width Thickness and length Width and length All of the above
Answer: Thickness and width
51
Which of the following metals is stronger? Tool steel Spring steel Stainless steel All of the above
Answer: Tool steel
52
The higher the carbon content of steel, the ______ Weaker is the steel Stronger is the steel Smaller is the steel Bigger is the steel
Answer: Stronger is the steel
53
A tool that cut metal bar faster. Shear cutter Band saw Grinding wheel None of the above
Answer: Grinding wheel
54
Filing is classified as Cold working Hot working Casting None of the above
Answer: Cold working
55
Ability of material to resist indention. Brittleness Toughness Hardness All of the above
Answer: Hardness
56
Property of metal to join together with other metal at liquid state. Ductility Workability Fusibility None of the above
Answer: Fusibility
57
A machine element used to tighten bolt. Washer Rivet Nut All of the above
Answer: Nut
58
A welding process wherein current is allowed to pass through the prongs of the welding machine which joined two metal sheets together. Resistance welding Oxyacetylene welding Arc welding None of the above
Answer: Resistance welding
59
A material that is resistant to salt corrosion. Mild steel Cast iron Stainless steel All of the above
Answer: Stainless steel
60
Which of the metal sheets is thicker than from gauge 20? Gauge 18 Gauge 22 Gauge 24 Two of the above
Answer: Gauge 18
61
Materials suitable to resist rusting. GI sheet BI sheet All of the above None of the above
Answer: GI sheet
62
Paint that is most suitable for metals. Latex paint Enamel paint Acrylic paint None of the above
Answer: Acrylic paint
63
Which is the following is used for acrylic paint? Paint thinner Lacquer thinner Primer epoxy None of the above
Answer: None of the above
64
A coating material to protect metal from rusting. Primer epoxy Red oxide Red lead All of the above
Answer: All of the above
65
When a machine is driven directly from the shaft of a power, the power source is transmitted using Gear drive Sprocket and chain drive Direct drive None of the above
Answer: Direct Drive
66
Belt size designation for agricultural V-belt is A, B, C, D, E HA, HB, HC, HD, HE AA, BB, CC, DD, EE None of the above
Answer: HA, HB, HC, HD, HE
67
It is a gripping device between power sources. Clutch Chain Springs None of the above
Answer: Clutch
68
A machine elements that transmits torque and power. Pulley Bearing Shaft None of the above
Answer: Shaft
69
It is used to fasten shafts, pulleys, and hubs of gears together. Bolt Springs Keys None of the above
Answer: Keys
70
A universal joint is A connector which can be used on all brands of tractor Used to transmit power between two intersecting shafts usually when the angle between them is variable A prohibited drug used universally None of the above
Answer: Used to transmit power between two intersecting shafts usually when the angle between them is variable
71
The length of chain usually expressed in Inches Meters Pitches None of the above
Answer: pitches
72
A device usually used to connect to shafts on a direct drive system. Clutch Coupler Pulley None of the above
Answer: Coupler
73
Warranty of parts and services for heated-air mechanical grain dryer based on PAE Standards is within___ after the acceptance of the machine. ``` 6 months 12 months 18 months 24 months None of the above ```
Answer: 12 months
74
It is the ratio of the heat released by the fuel heated air mechanically dryer to the theoretical heat available from the fuel. Burner efficiency Furnace efficiency Combustion efficiency None of the above
Answer: Combustion efficiency
75
In testing agricultural machines as prescribed in the PAES standard of the, it should be operated by_____. ``` Farmers Traders/cooperatives Manufacturer(s) representatives Accredited testing organization None of the above ```
Answer: Manufacturer(s) representatives
76
Holding capacity of the mechanical dryer testing as prescribed by PAES should be based on the ___ and other accompanying information such as moisture content and purity. Volume Weight Density None of the above
Answer: Weight
77
Milling test of samples during the test of mechanical grain dryer based on PAES standard test should be conducted at least ___after drying test. 24 hours 48 hours 36 hours None of the above
Answer: 48 hours
78
Thermometer sensors during testing of agricultural machines should be partially shielded to minimize ___. Mechanical damage of thermometer sensor Error from heat of radiation effect Error from conduction of heat from wall of the machine None of the above
Answer: Error from heat of radiation effect
79
The minimum number of trials required in testing heated air mechanical grain dryer as specified in PAES. One Two Three None of the above
Answer: Two
80
Time interval of measurement of test parameters in heated air mechanical dryer as specified in the PAES Test Method . 15 minutes 30 minutes 45 minutes 60 minutes
Answer: 30 minutes
81
Commonly used threshing cylinder for axial flow rice thresher. Peg tooth Rasp bar Wire loop None of the above
Answer: Peg tooth
82
The shaft rpm of the rice thresher will need to be ___ if the diameter of the threshing cylinder is reduced. Increased Reduced Remain the same None of the above
Answer: Increased
83
Warranty of the construction and durability of the mechanical rice thresher according to PAES standard shall be within ___after the purchase of the machine. ``` 6 months 12 months 18 months 24 months None of the above ```
Answer: 6 months
84
All rotating parts of the agricultural machines as provided in the PAES should be Rigid Dynamically balanced Uniform in speed None of the above X
Rigid Dynamically balanced Uniform in speed None of the above Answer: Dynamically balanced
85
Which of the following parts are treated to be dangerous as stated in PAES for ensuring safety in agricultural machinery? Pulleys Clutches Coupling All of the above X
Answer: All of the above
86
Recommended material in the manufacture of pin sleeve and hitch pin for walking type power tiller. Mild steel Cold rolled steel Spring steel None of the above
Answer: Cold rolled steel
87
A centrifugal pump that develop a vacuum sufficient enough for atmospheric pressure to force the liquid through the suction pipes into the pump casing without initially feeding the pump to create suction. Pressure pump Self priming pump Mixed flow pump None of the above X
Answer: Self priming pump
88
A type of pump which develops most of the suction and discharge head by propelling or lifting action of the impeller vanes on the water. Axial-flow pump Centrifugal pump Mixed flow pump None of the above
Answer: Axial-flow pump
89
It is the formation of the void spaces filled with water vapor due to local pressure drop and collapse as soon as the vapor bubbles reach regions of high pressures. Water hammer Cavitations Bubbling None of the above
Answer: Cavitations
90
A type of pump with vanes or impellers rotating inside a close housing which draws water in to the pump through a central inlet opening and forces the water out through a discharge outlet at the periphery of the housing. Axial-flow pump Centrifugal pump Mixed flow pump None of the above
Answer: Centrifugal pump
91
A type of pump which combines some of the feature of both the centrifugal and axial-flow pump and in which head is developed partly by the centrifugal force and partially by the lift of the vanes on the water. Self priming pump Diffuser type centrifugal pump Mixed flow pump None of the above
Answer: Mixed flow pump
92
This represents the interrelationship between capacity, head power, NPSH, and the efficiency of the pump. Pump characteristics Performance curve Pump laws None of the above
Answer: Performance curve

Area 1 Eya (7 decks)

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