A&P General

A drawing in which the subassemblies or parts are shown as brought together on the aircraft is called. an assembly drawing. a detail drawing. an installation drawing.

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 . zone number. reference number. station number.

What type of the normally used in a mechanical drawing or blueprint to represent an edge or object not visible to the viewer. Medium-weight dashed line. Medium solid line. Alternate short and long light dashes.

For sketching purposes, almost all objects are composed of one or some combination of six basic shapes; these include the. angle, arc. line, plane, square and circle. triangle, circle, cube, cylinder, cone, and sphere. triangle, plane, circle, line, square and sphere.

Aline used to used to show an edge which is not visible is a. phantom line. hidden line. break line.

( refer to figure 39 ) Determine the minimum wire size of a single cable in a bundle carrying a continuos current of 20 amperes 10 feet from the bus to the equipment in a 28-volt system with an allowable 1-volt drop. No. 12. No. 14. No. 16.

When reading a blueprint, a dimension is given as 4.387 inches + .005 - .002. which statement is true ?. The maximum acceptance size 4,390 inches. The minimum acceptable size is 4,385 inches. The minimum acceptable size is 4,382 inches.

Schematic diagrams are best suited for which of the fallowing ?. Showing the visual details of individual components in a system. Showing the overall location and appearance of components in a system. Troubleshooting system malfunction.

(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 drawing is made, it is carefully and accurately drawn to scale, and is dimensioned. Regarding the above statements. Only No 2 is true. both No. ams No 2 are true. neither No. 1 nor No. 2 is true.

( Refer to figure 27 ) In the isometric view of a typical aileron balance weight, identify the view indicated by the arrow. 1. 3. 2.

What is the class of working drawing that is the description/depiction of a single part ?. installation drawing. assembly drawing. Detail drawing.

The drawing often used in illustrated parts manuals are. exploded view drawings. block drawing. detail drawing.

What numbering system is used to locate fuselage frames ?. Zone numbers. Station numbers. Tolerances.

( Refer to figure 40 ) Determine the proper tension for a 1/8.inch cable (7x 19 ) if the temperature is 80 F. 70 pounds. 75 pounds. 80 pounds.

(1) Schematic diagrams indicate the location of individual components in the aircraft. (2) Schematic diagrams indicate the location of components within respect to each other within the system. Regarding the above statements. only No. is true. Both No. 1 and No. 2 are true. only No. 2 is true.

(Refer to figure 34 ) Using the information , what size drill would be required to drill the clevis bolthole ?. 5/16 inch. 21/64 inch. 1/2 inch.

( Refer to figure 31 ) What are the proper procedural steps for sketching repairs and alterations ?. 3,1,4,2. 4,2,3,1. 1,3,4,2.

In what type of electrical diagram are imagines of components used instead of conventional electrical symbol ?. A pictorial diagram. schematic diagram. A block diagram.

In the reading of aircraft blueprints, the term tolerance used in association with aircraft parts or components. is the tightest permissible fit for proper construction and operation of mating parts. in the difference between extreme permissible dimension the a part may have and still be acceptable. represents the limit of galvanic compatibility between different adjoining material types in aircraft parts.

A simple way to find the center of a circle on a sketch or drawing or a circular piece of material is to. Draw two non-parallel chord lines across the circle and then a corresponding perpendicular bisector lines across each chord line. Draw two parallel chord lines across the circle and then a corresponding perpendicular bisector lines across each chord line. Draw a single chord lines across the circle and then a corresponding perpendicular bisector lines across the chord line.

( Refer to figure 37 ) The vertical distance between the top of the plate and the bottom of the Lowes 15/64-inch hole is. 2.250. 2.242. 2.367.

The measurements showing the ideal or perfect sizes of parts on drawing are called. allowances. dimensions. tolerances.

( Refer ti 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. 55/64 inch. 1 inch. 7/8 inch.

( refer to figure 32 ) What is the next step required for a working sketch of the illustration ?. Darken the object outlines. Sketch extension and dimension lines. Add notes dimensions, title, and date.

( Refer to figure 34 ) What is the dimension of the chamfer ?. 1/16 x 37º. 0.3125 + .005 -0. 0.0625 x 45º.

Sketches are usually made easier by the use of. graph paper. plain white paper. artists paper.

What should be the first step of the procedure in sketching an aircraft wing skin repair ?. Draw heavy guidelines. Lay out the repair. Block in the views.

A hydraulic system schematic drawing typically indicates the. specific location of the individual components within the aircraft. direction of fluid flow through the system. amount of pressure in the pressure and return lines, and in system components.

( Refer to figure 40 ) Determine the proper tension for a 3/16.imch cable. (7x 19 extra flex ) if the temperature is 87º F. 135 pounds. 125 pounds. 140 pounds.

In a sectional view drawing, what section illustrate particular parts of an object ?. Removed. Revolved. Half.

(Refer to figure 28 ) Identify the bottom view of the object. show. 2. 3. 1.

( Refer to figure 38 ) An aircraft reciprocating engine has a 1.830 cubic-inch displacement and develops 1,250 brake-horsepower at 2,500 RPM: Whats is the brake mean effective pressure ?. 217. 205. 225.

What type of diagram shows the wire size required for a particular installation ?. A block diagram. A schematic diagram. A wiring diagram.

(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 take a simple sketch of a proposed repair to an aircraft, , a new design, or a modification. Regarding the above statements. only No. 1 is true. only No. 2 is true. both No 1 and 2 are true.

(1) A detail drawing is a description of a simple part. (2) An assembly drawing is a description of an object made up of two or more parts. Regarding the above statements. only No. 1 is true. neither No. 1 nor No. 2 is true. both No. 1 and No. 2 are true.

(Refer to figure 39 ) Determine the cable size of a 40-foot length of single cable in free air, with a continuos rating, running from a bus to the equipment in a 28-volt system with a 15-ampere load and a 1-volt drop. No. 10. No. 11. No. 18.

( Refer to figure 41 ) Determine how much fuel would be required for a 30-minute reserve operating at 2,300 RPM. 25.3 pounds. 35.5 pounds. 49.8 pounds.

(Refer to figure 39 ) Determine the maximum length of 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. 8 feet. 10 feet. 12 feet.

(1) Sketches are usually made with the aid drafting instruments. (2) Sketches are usually more complicated to make when using graph paper. Regarding the above statements. Only No. 1 is true. Only No 2 is true. Neither No. 2 nor No 2 is true.

(Refer to figure 38 ) An aircraft reciprocating engine has a 2,800 cubic-inch displacement and develops 2,000 RPM. What is the brake mean effective pressure ?. 257.5. 242.5. 275.0.

( Refer to figure 36 ) The dimeter of the holes in the finished object is. 3/4 inch. 31/64 inch. 1/2 inch.

(Refer to figure 30 ) identify the bottom view of the object. 1. 2. 3.

(Refer to figure 33 ) Which material section-line symbol indicates cast iron ?. 1. 2. 3.

Which statement is true regarding an orthographic projection ?. There are always at least two views. It could have as many as eight views. One-view, two-view, and three-view drawing are the most common.

(Refer to figure 29 ) Identify the left side view of the object show. 1. 2. 3.

(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. 22.5 feet. 26.5 feet. 12.5 feet.

What material symbol is frequently used in drawing to represent all metals ?. Steel. Cast iron. Aluminum.

What is the allowable manufacturing tolerance for a bushing where the outside dimension show on the blueprint are : 1.0625 + .0025 - .003 ?. .0028. 1.0650. 1.0647.

Which statement is applicable when using a sketch for making a part ?. The sketch may be used only if supplemented with three-view orthographic projection drawing. The sketch must show all information to manufacture the part. The sketch need not show all necessary construction details.

(Refer to figure 35 ) Identify the extension line. 3. 1. 4.

Zone numbers on aircraft blueprints are used to. Locate parts, sections and views on large drawing. Indicate different sections of the aircraft. Locate part in the aircraft.

(Refer to figure 38 ) An aircraft reciprocating engine has a 2,800 cubic-inch displacement, develops 2,000 brake-horsepowers, and indicates 270 brake mean effective pressure, What is the engine speed (RPM). 2,200. 2,100,. 2,300.

What us used to indicate that a surface must be machine finished?. Tolerances. Leader lines. Finished marks.

Which of the fallowing 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? 1. Zone numbers. 2. Reference numbers. 3. Station numbers. 1 and 3. 3. 2.

(Refer to figure 41 ) Determine the fuel consumption with the engine operating at cruise, 2,350 RPM. 49.2 pounds per hour. 51.2 pounds per hour. 55.3 pounds per hour.

Working drawing may be divided into three classes. They are : title drawing installation drawing and assembly drawings. detail drawing assembly drawings and installation drawings. detail drawing, orthographic projection drawing, and pictorial drawing.

(Refer to figure 34 ) What is the maximum diameter of the hole for the clevis pin ?. 0.3175. 0.3130. 0.31255.

One purpose for schematic diagrams is to show the. functional location of components within a system. physical location of components within a system. size and shape of components within a system.

What type of drawing line consists of alternating long and short lines ?. Dimension. Center. Hidden.