CAD MANIA-Round 1-Mechanical Time Allowed 1 hour What you need This question paper, an answer sheet a pen with black or blue ink DO NOT OPEN THIS PAPER UNTIL YOU ARE TOLD TO DO SO BY THE SUPERVISOR •You MUST use a pen (not pencil) with black or blue ink to fill in the answer sheet. •Check that you have the correct answer sheet for the test you are taking. HOW TO WRITE DOWN YOUR ANSWERS Each question shows FOUR possible answers (lettered ‘a’, ‘b’, ‘c’ and ‘d’); only ONE is correct. Choose the one you think is correct and mark your answer on the ANSWER SHEET with your pen. NOTE:This paper contains 40 questions. Answer them using the boxes numbered 1 to 40 on the answer sheet. Judging Crieteria: Total Marks= (2R-1W) R=Number of Correct Answers W=Number of Wrong Answers Rules & Regulation: 1. Use of any Electronics Device During The Exam is not allowed,otherwise the participant will be terminated. 2. The Result Will me built on the basis of Cut Off set by the Checking commite. 3. If more than one answers are marked in the answersheet ,in that condition the Question will not be checked for that Participant. 1. How many degrees does a circle have? a. 420 c. 360 b. 180 d. 240 2. Which of the answers below is NOT a method for sketching circles? a. Box method c. Radius to center method b. Letter O method d. Centerline method 3.When something is drawn in a 1:4 scale, it means ? a.1 unit in real life = 4 units on paper c. 1 unit on paper = 4 units in real life b.4 unit on paper = 2 units in real life d.all of the above 4. A drawing generally shows what views a. front, right side, top and isometric c. isometric, left side and top b. front, left side, top and isometric d. left side, bottom and top 5.What is the labeled line in the drawing below called? a. hidden line c. extention line b. focus line d. dimension line 6. The friction experienced by a body, when in motion, is known as? a. rolling friction c. limiting friction b. dynamic friction d. static friction 7.This symbol indicates what? a. diameter c. no b. hole center d. radius 8.Which of the pictures is drawn in correct “proportions”, assuming this is a tree in the forest.? a. c. b. d. 9. An ellipse is a.a circle with a square in the middle c. an oval shape b.a type of triangle d.a rectangular shape with intersecting circles 10.In an isometric view, the angles of the object shown with arrows are always going to be ? a. 30 degrees c. 45 degrees b. 90 degrees d. 75 degrees NOTE: LOOK AT each line identified in the figure below.And Answer the question below: 11. Line 1-2 is: a.Normal c. Inclined b Oblique . d. Hidden a.Normal c. Inclined b Oblique . d. Hidden a.Normal c. Inclined b Oblique . d. Hidden 12. Line 1-3 is: 13. Line 2-6 is: 14. A sphere can be described in how many views? a. 4 c. 2 b. 3 d. 1 15.The height, width, and depth of an object can be shown with a minimum of how many orthographic projection views? a. six c. three b. two d. four 16. This is used to indicate that a surface is to be machined ? a. Finish mark c. Roughness indicator b. Machining mark d. Coordinate mark 17. The profile of a gear teeth is in the form of (a) parabola (b) involute (c) spiral (d) helix 18. Which of the following operations cannot be performed on a lathe a. Slotting b. facing c. Thread Cutting d. drilling 19. A refigerant used in the domestic refrigerator is a. air b. Sulphur Dioxide c. methade d. freon 20. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction a. Less than b. Greater than c. Equal To d. None of This 21. The forces, which meet at one point and their lines of action also lie on the same plane, are known as a. coplaner concurrent forces b. coplaner non-concurrent forces c. non-coplaner concurrent forces d. non-coplaner non-concurrent forces 22. The deformation per unit length is called a. tensile stress b. compressive stress c. shear stress d. strain 23. Which of the following are vector quantities? a. b. c. d. Angular velocity Angular acceleration Angular displacement All Of Above 24. The law of motion involved in the recoil of gun is a. a. Newton's second law of motion b. b. Newton's third law of motion c. c. Newton's first law of motion d. d. None of these 25 . One joule means that a. work is done by a force of 1 kg when it displaces a body through 1 m b. work is done by a force of 1 KN when it displaces a body through 1 m c. work is done by a force of 1 g when it displaces a body through 1 cm d. work is done by a force of 1 dyne when it displaces a body through 1 cm. 26. The unit of power in S.I. units is a. joule b. watt c. horsepower d. joule 27. If an object lies in third quadrant, its position with respect to reference planes will be a. infront of V.P, above H.P b. behind V.P., above H.P. c. behind V.P., below H.P. d. infront of V.P., below H.P. 28. Lettering on a drawing sheet should have a. b. c. d. all alphabets in capital letters all alphabets in small letters In a sentance only first alphabet in capital letter In a sentance only abbreviations are capital lette 29. The line connecting a view to note is called a. b. c. d. dimension line projection line leader arrowheads 30. Which of the following object gives a circular section, when it is cut completely by a section plane (irrespective of the angle of the section plane) a. b. c. d. Cylinder Sphere Cone Circular lamina 31) Identify the figure that completes the pattern. (X) (1) (2) (3) a. 1 b. b.2 c. 3 d. d. 4 (4) 32. Dimension text is generally placed above the ________ line. a. Dimension b. b.extension c. center d. d.leader 33. There should be a visible gap between the wall and the ________ line. a. dimension c. center b.b. extension d. d. leader 34. These are vertical distances above a common datum, reference plane, or point a. Plats b. b. Elevations c. Traverse d. d. Profiles 35. CAD programs which incorporate parametric modeling utilize a system in which the dimensions a. size and shape of the model features b. perspective of the model c. shading used to render the model d. all of the above NOTE: Identify the feature on the object as either an edge (E), face (F), vertex (V), or limiting element (L). 36. Feature 1 is a(n): a. b. c. d. Edge Face Vertex Limiting Element 37. Feature 2 is a(n): a. Edge b. Face c. Vertex d. Limiting Element 38. This problem consists of a square piece of paper that is folded a number of times before a hole is drilled though it. You must visualize then choose the unfolded square piece of paper with the resulting holes. a. Square A b. Square B c. d. Square C Square D 39. This problem consists of an object that has been cut by a plane. You must visualize then choose what the shape of the surface would be if cut by the plane. a. b. c. d. Shape Shape Shape Shape A B C D 40. Each problem consists of an object that has been cut by a plane. You must visualize then choose what the shape of the surface would be if cut by the plane. a. b. c. d. Shape Shape Shape Shape A B C D