- Self-check -3 Directions: Answer all the questions listed below 1. Which one is not belongs to work holding device?(1 point) a) Drive plate b) Face plate c)Chucks d) Straight tool holder 2. __ - are used to hold regular and irregular or odd shaped work. (1 point) a) Three jaw self - centering chuck c) Magnetic Chucks b) Four jaw independent chucks d) All of the above 3. __ ; is used to hold and drive work that cannot be held between centers or in a chuck. (1 point) a) Face plate b)Drive plate c) Chucks d) Straight tool holder 4. Which one is used for facing operation and for machining work close to the tailstock(1 point) 5. Which one is not true about the ISO metric thread ?(1 point) A. Phi =60^circ D FR=2X0.125XP B. D=0.6134XP E. None C. FC=0.125XP 6. Which one is true not about the pitch, depth, minor diamet erfor''M14times 2''thread?(1point) A. Pitch=2mm C. Minor Diameter=12.91746 B Depth=1.08254mm E. D. None 7. It is one-half of the total amount removed from the work piece in one cut.(1 point) a/ Depth of cut b) machining time c)cutting speed d/RPM 8. Which metal needs high cutting speed during rough turning operation? (I point) a/Bronze b) machine steel c) aluminum d/ cast Iron 9. Calculate the r/min required to turn a 50 mm diameter work piece of machine steel (CS=60 m/min) (1 point) a/456 b) 382 c) 389 d/ none 10. __ - is machining the ends and shoulders of a piece of stock smooth. (1 point) a. Facing b/ turning c/grooving d/ threading aintc AND SKILLS 11. Which is the taper angle for a project having 80mm large diameter and 40 mm small diameter with 40 taper length to make its taper using compound rest method. (1 point) a. 4.8 b/ 20.5 C. 26.56 d/ None 12. it is an accurate way to cut a tapper. (1 point) a. using compound rest c) using tailstock offset b. using taper turning attachment d) None __ 13. - is the operation of enlarging a drilled or bored hole by means of a single or double edge cutting tool held in a boring bar. (1 point) a. Counter boring b/ Drilling c/Reaming d/ Boring 14. Tool used for the operation of sizing and producing a smooth hole from a previously drilled or bored hole with the use of a cutting tool having several cutting edges. (1 point) a. Counter boring b/Drilling c/Reaming d/ Boring Directions: II. Write,True or False 1. In machining operations the sequence of events that we follow is safety" first, accuracy second, and speed last (1 point) 2. Lathe accidents my usually caused by Loose clothing snagging on the revolving work piece(1point) Directions: III Write the correct answer 3. __ is often used to increase the work piece diameter when a press fit is required. 4. In machining operations there is one sequence of events that one must

# Explanation:<br />## Step 1: Identify the correct answers for each question<br />### We will go through each question and identify the correct answer based on the provided options.<br /><br />1. **Which is not an object that belongs to a work situation?**<br /> - Directives, Tax, Changes, Discounts<br /> - **Answer:** b. Tax<br /><br />2. **The price of a fixed balance shall be marginal or debt shaped work.**<br /> - Timeary net-contempl check, Market Checks, Fuel - raw-in-deferent check, All of the above<br /> - **Answer:** d. All of the above<br /><br />3. **is used to hold and drive work that cannot be held between centers or in a church.**<br /> - Price B.Paice, Price, Choose, Total number<br /> - **Answer:** c. Price<br /><br />4. **Which one is used for facing Dividing a person (a) Consulting work done to the dialect?**<br /> - Left hand tool used by Fixed stock, Right hand tool holder, all<br /> - **Answer:** c. Right hand tool holder<br /><br />5. **Which one is not true about the EO metric thread if**<br /> - \( \mathrm{Q}=\mathrm{d} \phi \), \( \mathrm{Q}=\mathrm{R} 20.125 \mathrm{~K} \), \( \mathrm{FC}=0.125 \mathrm{KK} \), \( \mathrm{R}=\mathrm{P} 20.125 \mathrm{KP} \)<br /> - **Answer:** a. \( \mathrm{Q}=\mathrm{d} \phi \)<br /><br />6. **Which one is true not about the pitch, depth, minor diameter for "M14 & "?**<br /> - Pitch \( -\mathrm{Zmm} \), Minor Diameter \( =12.91 / 146 \), Depth \( =0.125 \mathrm{KNm} \), None<br /> - **Answer:** D. None<br /><br />7. **It is a part of the ball instrument removed from the front wheel of a PNE in**<br /> - 3/12 point of area, matching time \( = \) during speed of \( 8 \mathrm{PM} \), 3/18 point of machine speed, 3/18 point of machine operation<br /> - **Answer:** d. 3/18 point of machine operation<br /><br />8. **Which most heck of the ball instrument time in the front wheel of a PNE in**<br /> - 8/18 point, 12/18 point, 13/18 point, 14/18 point<br /> - **Answer:** c. 13/18 point<br /><br />9. **Calculate the frim squirt to turn a \( 9.0 \mathrm{~m} \) dam diameter at your piece of machine steel (CS-60 minum).**<br /> - \( 4 / 16 \), \( 3 / 22 \), \( 3 / 39 \), none<br /> - **Answer:** d. none<br /><br />10. **is machining the task and shoulders at a piece of stock smooth.**<br /> - Facing, turning, grooving, threading<br /> - **Answer:** a. Facing<br /><br />11. **Which is the upper angle for a project having \( 80 \mathrm{~mm} \) large diameter and \( 40 \mathrm{~mm} \) small diameter with \( 40 \mathrm{~cm} \) deep length to make its upper using compound rest method.**<br /> - \( 4.8 \quad \), 20, \( 25.6 \quad \), None<br /> - **Answer:** d. None<br /><br />12. **It is an accurate way to cut a paper.**<br /> - using compound, resting tailoric effect, using upper turning attachment, None<br /> - **Answer:** d. None<br /><br />13. **is the opening of a challenge of a rolling card of her body by means of a single or double edge during head in a bird being it**<br /> - Counter the opening of Driling, Reaming, Boring<br /> - **Answer:** c. Reaming<br /><br />14. **Toot used for the bottom of a string and producing a product hold them on a previously drilled or botel back with the use of a cutting being several wires quite.**<br /> - Counter boring, Driling, Rearning, Being<br /> - **Answer:** a. Counter boring<br /><br />15. **In a machinery organization, the owner has four or five sides of safety first, accuracy second and speed last.**<br /> - Lalac accidenting my usually caused by Lolac clothing smugging on the revolving work project (pun)<br /> - **Answer:** This statement seems incomplete and unclear.<br /><br />## Step 2: Write the correct answers for the fill-in-the-blank questions<br />### We will provide the correct answers for the fill-in-the-blank questions based on the context.<br /><br />1. **often used to increase the voice place diameter when a press fit is required.**<br /> - **Answer:** Reaming<br /><br />2. **In making operations, free is one source of events that are must**<br /> - **Answer:** Lubrication<br /><br /># Answer:<br />### 1. b. Tax<br />### 2. d. All of the above<br />### 3. c. Price<br />### 4. c. Right hand tool holder<br />### 5. a. \( \mathrm{Q}=\mathrm{d} \phi \)<br />### 6. D. None<br />### 7. d. 3/18 point of machine operation<br />### 8. c. 13/18 point<br />### 9. d. none<br />### 10. a. Facing<br />### 11. d. None<br />### 12. d. None<br />### 13. c. Reaming<br />### 14. a. Counter boring<br />### 15. Incomplete statement<br />### Fill-in-the-blanks:<br />### 1. Reaming<br />### 2. Lubrication