DRAWING-MECHANICAL Saturday 9 a.m. Two hours 1. Illustrate the following geometric constructions by means of accurately drawn figures. Where the method is not clearly evident from the figure, add a brief explanation. a) To bisect a given arc. b) To construct half of a true ellipse whose axes are 3 inches and 4 inches respectively. Sketch the curve neatly free-hand through the points obtained. 2. Make an isometric drawing of a rectangular block 3 inches long, 2 inches wide and 1 inches high, with a right pyramid 11⁄2 inches high resting centrally ⚫ on the top face of the block. The base of the pyramid is a hexagon each side of which is inch long; two sides of the hexagon are parallel to the long edges of the prism. Lengthwise through the center of the block there is a circular hole 1 inches in diameter. 3. Description. The material of the bird house shown below is all inch thick. The house is 8 inches by 12 inches. The vertical side walls are 6 inches high. The highest point of the roof is 9 inches above the floor. There is no interior framework. The roof overhangs at the sides and ends 2 inches (measured horizontally). A circular hole 2 inches in diameter extends through each end half-way between the sides. The center of each hole is 2 inches above the floor. The interior is divided into two equal compartments by a vertical partition wall parallel to the ends of the house. (SEE NEXT PAGE) inches long, in such a position as to leave a space 3 inches wide entirely around it. Problem.-Make a working drawing of the bird house shown on page 1. Include: a) A top view, a front view, and an end view, drawn to a scale of inch to 1 inch (one-fourth actual size). b) The necessary dimensions. c) A simple title (Bird House), and such brief notes as will inform the workman what materials are to be used, how they are to be fastened together, and what finish you would suggest for the surfaces. Print carefully, using some simple single-stroke free-hand lettering. 4. The dimensions of the wedge shown below (in isometric projection) are as follows: The larger base is a rectangle 1 inch by 2 inches; the smaller base is a rectangle inch by 2 inches; the vertical distance between the bases is 11⁄2 inches. The ends are equal and parallel trapezoids, and the side faces slope equally. a) Draw the horizontal and vertical projections (top and front views) of the wedge (actual size) in the following position: its larger base is uppermost and inch below the horizontal plane of projection; one corner of this base is in the vertical plane of projection, and the longer edges of the base make 30 degrees with the vertical plane of projection. b) Find the true shape of the section cut from the wedge by a plane which passes through its exact center. The cutting plane is perpendicular to the horizontal plane, but makes 60 degrees with the longer edges of the base of the wedge (30 degrees with the vertical plane). (SEE NEXT PAGE) 5. a) Enumerate briefly the precautions to be observed in the use of the ruling pen. b) How would you test a triangle for accuracy? 6. The accompanying full-size drawing shows three projections of a 1 inch cube from which three cavities have been cut. State the length, width, and depth of each cavity, as determined by direct measurement from the drawing. ENGLISH 1-GRAMMAR AND COMPOSITION Tuesday 9 a.m. Two hours Allow about twenty minutes for the first question, one hour for the second, and thirty minutes for the third. Reserve ten minutes for careful revision. 1. a) Make a list of the phrases in the following sentence, and indicate the nature of each: "Never misusing the power which his wealth gave him, he was, during all his life, and especially after his withdrawal from active affairs, a constant benefactor of the city." b) Copy the following sentences, making such changes (in grammar, punctuation, and use of words) as you think necessary or desirable. Briefly tell why you make each of these changes. 1) He made a real good try but I don't enthuse much over the result. 2) The party who you are looking for is in the next room. 3) To have constantly objected to their plans which were certainly well intended seemed small minded on his part. 4) The committee were unanimous in objecting to the park's extension. 2. Write a carefully planned theme of four or five hundred words upon one topic from the list below: a) Summer work. b) The building of an inexpensive garage, or a summer camp. c) The equipment, in the home, of a shop, a laboratory, a kitchen, or a gymnasium. d) The best section of the United States. e) How I furnished my room. f) The relations between the United States and Mexico. g) The mining of coal (or any other important industrial process, such as the milling of lumber or the production of steel). h) The equipment and training of a military officer or of a Red Cross nurse. i) Lectures: their influence, and their value to the school or to the community. j) Changes I should like to make in the organization of some school activity. k) Books that I shall not make my children read. 1) A project for world-peace. m) The "movie habit." n) A contemporary writer whose works might well be read in school. o) An argument for (or against) national prohibition by federal enactment. 3. Write a descriptive or narrative passage of about two hundred words upon one of the following topics: a) Around the soda-fountain. b) A stretch of uninteresting country. c) My chum's family. d) Coming home from school. e) A factory town from a distance. f) A character in real life who might have come out of Dickens or Hawthorne. g) "The best parlor." h) "Just in time." i) Aunt Carrie in the kitchen. |