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GENERAL > AIRCRAFT DRAWINGS > Flashcards

AIRCRAFT DRAWINGS Flashcards

1
Q

What type of line is normally used in a mechanical drawing or blueprint to represent an edge or object not visible to the viewer?

A. Medium-weight dashed line
B. Medium solid line
C. Alternate short and long light dashes

A

A medium weight dashed line

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2
Q

(Refer to figure 27) In the isometric view of a typical aileron balance weight, identify the view indicated by the arrow.

A

3

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3
Q

(1) A detail drawing is a description of a single part.

(2) An assembly drawing is a description of an object made up of two or more parts.

A

1 and 2 are true.

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4
Q

(Refer to figure 28) Identify the bottom view of the object shown.

A

2

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5
Q

A specific measured distance from the datum or some other point identified by the manufacturer, to a point in or on the aircraft is called a

A. zone number
B. reference number
C. station number

A

C

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6
Q

Which statement is true regarding an orthographic projection?

A. There are always at least two views
B. It could have as many as eight views
C. One-view, two-view, and three-view drawings are the most common

A

C

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7
Q

(Refer to figure 29) Identify the left side view of the object shown.

A

3

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8
Q

A line used to show an edge which is not visible is a

A. phantom line
B. hidden line
C. break line

A

B

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9
Q

What type of drawing line consists of alternating long and short lines

A. Dimension
B. Center
C. Hidden

A

B

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10
Q

(Refer to figure 30) Identify the bottom view of the object

A

1

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11
Q

(1) Schematic diagrams indicate the location of individual components in the aircraft
(2) Schematic diagrams indicate the location of components with respect to each other within the system

A

2

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12
Q

(Refer to figure 31) What are the proper procedural steps for sketching repairs and alterations?

A

3,1,4,2

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13
Q

Which statement is applicable when using a sketch for making a part?

A. The sketch may be used only if supplemented with three-view orthographic projection drawings
B. The sketch must show all information to manufacture the part
C. The sketch need not show all necessary construction details

A

B

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14
Q

(Refer to figure 32) What is the next step required for a working sketch of the illustration?

A. Darken the object lines
B. Sketch extension and dimension lines
C. Add notes, dimensions, title, and date

A

B

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15
Q

For sketching purposes, almost all objects are composed of one or some combination of six basic shapes; these include the

A. angle, arc, line, plane, square, and circle
B. triangle, circle, cube, cylinder, cone, and sphere
C. triangle, plane, circle, line, square, and sphere

A

B

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16
Q

In a sectional view drawing, what sections illustrate particular parts of an object?

A. Removed
B. Revolved
C. Half

A

A

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17
Q

What should be the first step of the procedure in sketching an aircraft wing skin repair?

A. Draw heavy guidelines
B. Lay out the repair
C. Block the views

A

C

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18
Q

A simple way to find the center of a circle on a sketch or drawing, or a circular piece of material is to

A. draw two non-parallel chord lines across the circle and then a corresponding perpendicular bisector line across each chord line.
B. draw two parallel chord lines across the circle and then a corresponding perpendicular bisector line across each chord line.
C. draw a single chord line across the circle and then a corresponding perpendicular bisector line across each chord line.

A

A

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19
Q

(1) According to 14 CFR Part 91, repairs to an aircraft skin should have a detailed dimensional sketch included in the permanent records
(2) On occasion, a mechanic may need to make a simple sketch of a proposed repair to an aircraft, a new design, or a modification

A

2

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20
Q

Working drawings may be divided into 3 classes. They are:

A. title drawings, installation drawings, and assembly drawings.
B. detail drawings, assembly drawings, and installation drawings.
C. detail drawings, orthographic projection drawings, and pictorial drawings

A

B

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21
Q

What is the class of working drawing that is the description/depiction of a single part?

A. Installation drawing
B. Assembly Drawing.
C. Detail Drawing

A

C

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22
Q

Sketches are usually made easier by the use of

A. graph paper
B. plain white paper.
C. artist’s paper

A

A

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23
Q

(1) Sketches are usually made with the aid of drafting instruments
(2) Sketches are usually more complicated to make when using graph paper

A

None

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24
Q

What material symbol is frequently used in drawings to represent all metals?

A. Steel
B. Cast Iron
C. Aluminum

A

B

25
Q

What is used to indicate that a surface must be machine finished?

A. Tolerances
B. Leader lines
C. Finished marks

A

C

26
Q

(Refer to Figure 33) Which material section-line symbol indicates cast iron?

A

3

27
Q

(Refer to figure 34) What is teh dimension of the chamfer?

A. 1/16 x 37°
B. 0.3125 + /005 -0
C. 0.0625 x 45°

A

C

28
Q

(Refer to figure 34) What is the maximum diameter of the hole for the clevis pin?

A. .3175
B. .3130
C. .31255

A

A

29
Q

(Refer to figure 34) What would be the minimum diameter of 4130 round stock required for the construction of the clevis that would produce a machined surface?

A. 55/64 inch
B. 1 inch
C. 7/8 inch

A

B

30
Q

(Refer to Figure 34) Using the information, what size drill would be required to drill the clevis bolthole?

A. 5/16 inch
B. 21/64 inch
C. 1/2 inch

A

A

31
Q

The measurements showing the ideal or “perfect” sizes of parts on drawings are called

A. allowances
B. dimensions
C. tolerances

A

B

32
Q

(Refer to Figure 35) Identify the extension line

A

3

33
Q

(Refer to figure 36) The diameter of the holes in the finished object is

A. 3/4 inch
B. 31/64 inch
C. 1/2 inch

A

C

34
Q

Zone numbers on aircraft blueprints are used to

A. locate parts, sections and views on large drawings
B. indicate different sections of the aircraft
C. locate parts in the aircraft

A

A

35
Q

Which of the following terms is/are used to indicate specific measured distances from the datum and/or other points identified by the manufacturer, to points in or on the aircraft?

A. Zone numbers
B. Reference numbers
C. Station numbers

A

C

36
Q

What numbering system is used to locate fuselage frames?

A. Zone numbers
B. Station Numbers
C. Tolerances

A

B

37
Q

One purpose for schematic diagrams is to show the

A. functional location of components within a system
B. physical location of components within a system
C. size and shape of components within a system

A

A

38
Q

When reading a blueprint, a dimension is given as 4.387 inches +.005 -.002. What statement is true?

A. The maximum acceptable size in 4.390 inches
B. The minimum acceptable size is 4.385 inches
C. The minimum acceptable size is 4.382 inches

A

B

39
Q

What is the allowable manufacturing tolerance for a bushing where the outside dimensions shown on the blueprint are: 1.0625 +.0025 -.0003?

A. .0028
B. 1.0650
C. 1.0647

A

A

40
Q

A hydraulic system schematic drawing typically indicates the

A. specific location of the individual components within the aircraft
B. direction of fluid flow through the system
C. amount of pressure in the pressure and return lines, and in system components

A

B

41
Q

(Refer to figure 37) The vertical distance between the top of the plate and the bottom of the lowest 15/64 inch hole is

A. 2.250
B. 2.242
C. 2.367

A

C

42
Q

(1) A measurement should not be scaled from an aircraft print because the paper shrinks or stretches when the print is made.
(2) When a detail drawings is made, it is carefully and accurately drawings to scale, and is dimensioned.

A

1 & 2

43
Q

The drawings often used in illustrated parts manuals are

A. exploded view drawings
B. block drawings
C. detail drawings

A

A

44
Q

A drawing in which the sub-assemblies or parts are shown as brought together on the aircraft is called

A. an assembly drawing
B. a detail drawing
C. an installation drawing

A

C

45
Q

What type of diagram shows the wire size required for a particular installation?

A. A block diagram
B. A schematic diagram
C. A wiring diagram

A

C

46
Q

In what type of electrical diagram are images of components used instead of conventional electrical symbols?

A. A pictorial diagram
B. A schematic diagram
C. A block diagram

A

A

47
Q

Schematic diagrams are best suited for which of the following?

A. Showing the visual details of individual components in a system
B. Showing the overall location and appearance of components in a system
C. Troubleshooting system malfunctions

A

C

48
Q

In reading of aircraft blueprints, the term “tolerance” used in association with aircraft parts or components,

A. is the tightest permissible fit for proper construction and operation of mating parts
B. is the difference between extreme permissible dimensions that a part may have and still be acceptable
C. represents the limit of galvanic compatibility between different adjoining material types in aircraft parts

A

B

49
Q

(Refer to Figure 38) An aircraft reciprocating engine has a 1830 cubic-inch displacement and develops 1250 brake-horsepower at 2,500 RPM. What is the break mean effective pressure?

A. 217
B. 205
C. 225

A

A

50
Q

(Refer to Figure 38) An aircraft reciprocating engine has a 2,800 cubic-inch displacement, develops 2,000 brake-horsepower, and indicates 270 brake mean effective pressure. What is the engine speed(RPM)?

A. 2,200
B. 2,100
C. 2,300

A

B

51
Q

(Refer to Figure 38) An aircraft reciprocating engine has a 2,800 cubic-inch displacement and develops 2,000 brake-horsepower at 2,200 RPM. What is the break mean effective pressure?

A. 257.5
B. 242.5
C. 275.5

A

A

52
Q

(Refer to Figure 39) Determine the cable size of a 40-foot length of single cable in free air, with a continuous rating, running from a bus to the equipment in a 28-volt system with a 15-ampere load and 1-volt drop.

A. No 10
B. No. 11
C. No. 18

A

A

53
Q

(Refer to Figure 39) Determine the maximum length of a No. 16 cable to be installed from a bus to the equipment in a 28-volt system with a 25-ampere intermittent load and a 1-volt drop.

A. 8 feet
B. 10 feet
C. 12 feet

A

A

54
Q

(Refer to Figure 39) Determine the minimum wire size of a single cable in a bundle carrying a continuous current of 20 amperes 10 feet from the bus to the equipment in a 28-volt system with an allowable 1-volt drop.

A. No. 12
B. No. 14
C. No. 16

A

A

55
Q

(Refer to Figure 39) Determine the maximum length of a No. 12 single cable that can be used between a 28-volt bus and a component utilizing 20 amperes continuous load in free air with a maximum acceptable 1-volt drop.

A. 22.5 feet
B. 26.5 feet
C. 12.5

A

B

56
Q

(Refer to Figure 40) Determine the proper tension for a 1/8 inch cable (7x19) if the temperature is 80°F.

A. 70 pounds
B. 75 pounds
C. 80 pounds

A

A

57
Q

(Refer to Figure 40) Determine the proper tension for a 3/16-inch cable (7x19 extra flex) if the temperature is 87°F.

A. 135 pounds
B. 125 pounds
C. 140 pounds

A

B

58
Q

(Refer to Figure 41) Determine how much fuel would be required for a 30-minute reserve operating at 2,300 RPM.

A. 25.3 pounds
B. 35.5 pounds
C. 49.8 pounds

A

A

59
Q

(Refer to Figure 41) Determine the fuel consumption with the engine operating at cruise, 2,350 RPM

A. 49.2 pounds per hour
B. 51.2 pounds per hour
C. 55.3 pounds per hour

A

C

GENERAL (3 decks)

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