Download ARPIT 2019 Diy Manufacturing Technology Creation Question Paper

Question Paper Name: DIY Manufacturing Technology

Subject Name: DIY Manufacturing Technology

Creation Date: 2019-03-30 20:10:08

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Duration: 180

Total Marks: 100

Display Marks: Yes

1. Another name for DIY is

1. Commercial off the shelf (COTS)

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2. Build your own (BYO)
3. Learning by doing
4. None of the above

2. Arduino is a

1. Microprocessor

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2. Microcontroller
3. Microcomputer
4. Central processing unit

3. Raspberry Pi is a

1. Microprocessor

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2. Microcontroller
3. Microcomputer
4. None of the above

4. Which of the following functions is not available in Arduino:

1. Digital input

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2. Digital output
3. Analog input
4. Analog output

5. How many digital input pins are available in Arduino:

1. 0

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2. 10
3. 14
4. 20

6. How many digital output pins are available in Arduino:

1. 0

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2. 10
3. 14
4. 20

7. The generation of tool paths in computerized machining is called

1. CAD

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2. CAM
3. CNC
4. None of the above

8. What is the microcontroller used in Arduino UNO?

1. ATmega328p

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2. ATmega2560
3. ATmega32114
4. TM4C123GH6PM

9. What does p refer to in ATmega328p?

1. Production

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2. Pico-Power
3. Power-Pico
4. Programmable on chip

10. What's the default bootloader of the Arduino UNO?

1. Opti boot bootloader

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2. AIR-boot
3. Bare box
4. None of the above

11. Which is the programming language used for controlling of Arduino?

1. Assembly Language

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2. C Language
3. Java
4. Any of the above

12. Arduino IDE consists of 2 functions in the list below. What are they?

1. Build () and loop()

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2. Setup () and build()
3. Setup () and loop()
4. Loop() and build()

13. How many analog input pins are there on the UNO board?

1. 0

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2. 4
3. 6
4. 14

14. What is the clock speed of Arduino Uno?

1. 1 GHz

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2. 100 MHz
3. 16 MHz
4. 1 MHz

15. What does IDE stand for?

1. In Deep Environment

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2. Integrated Development Environment
3. Internal Deep Escape
4. None of the above

16. Arduino UNO can source (provide current) or sink (absorb) current up to;

1. 40 mA

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2. 100mA
3. 4mA
4. 1000mA

17. If analog Read has a count value of 512 what is the voltage value at the A/D pin?

1. 3.75 V

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2. 2.5 V
3. 4.0 V
4. 1.25 V

18. How many analog output pins does the Arduino UNO have?

1. 0

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2. 1
3. 2
4. 4

19. How many times will the loop run for the following code?

int a;

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for(a=1; a<16;a++)

1. 13
2. 14
3. 15
4. 16

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20. Which of the following parameters is NOT a required part of the for loop?

1. initialize
2. increment
3. condition
4. Serial.pr0000000000000000intln()

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21. Which of the following commands is used to input data from one of the analog ports?

1. analogRead
2. analogin
3. opAmp
4. pwmRead

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22. Where does the Arduino store its program (sketch)?

1. external flash
2. on-board SRAM
3. EEPROM
4. on-board ROM

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23. What configuration is used to allow data to leave an Arduino through a digital port?

1. OUTPUT
2. DATAOUT
3. INPUT
4. dataOut

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24. What built-in device is used to communicate with the Arduino?

1. upload link
2. Keyboard
3. Serial monitor
4. all are valid methods

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25. if an array has ten elements; what is the index of the last element

1. eleven
2. ten
3. nine
4. none of the above

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26. Arduino uses which type signal to assign coded analog output values

1. sine wave
2. Square waves
3. PWM
4. Both A and B

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27. Forgetting to end a line with a semicolon will result in

1. spelling error
2. compile error
3. concatenation of the following line
4. continuing the statement on the next line

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28. The Arduino correlates temperature readings with what value?

1. Current
2. Voltage
3. Inductance
4. Coulomb

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29. The direction of rotation of a DC motor can be reversed .......

1. By reversing the connections of both armature and the field winding with the supply
2. By reversing the connections of either the armature or the field-winding connection with the supply
3. By reducing the field flux
4. By introducing an extra resistance in the armature circuit

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30. Which of the following rules is used to determine the direction of rotation of D.C motor?

1. Coulomb's Law
2. Lenz's Law
3. Fleming's Right-hand Rule
4. Fleming's Left-hand Rule

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31. A stepper motor is a(n) __________ device.

1. Mechanical
2. Electrical
3. Analogue
4. Incremental

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32. Which of the following variable types is NOT recognized by the Arduino

1. float
2. int
3. long
4. All of these variable types are recognized by the Arduino

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33. Which of the following RAM memory is used by the Arduino

1. SRAM
2. DRAM
3. SDRAM
4. None of the above

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34. What is the difference between full-step and half-step?

1. In full-step two phases are on and in half-step only one phase is on.
2. More resonance is evident in half-step
3. More power required for full-step
4. Half-step offers better resolution

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35. A motor of a stepper motor has no

1. Windings
2. Commutator
3. Brushes
4. All of the mentioned

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36. The rotational speed of a given stepper motor is determined solely by the

1. Shaft load
2. Step pulse frequency
3. Polarity of stator current
4. Magnitude of stator current.

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37. A stepper motor may be considered as a __________ converter.

1. DC to DC
2. AC to AC
3. DC to AC
4. Digital-to-analog

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38. If an application using a stepper motor required feedback, which device would be needed to accomplish this?

1. Counter
2. Encoder
3. Linear Guide
4. Commutator

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39. A stepping motor is a

1. mechanical
2. electrica
3. analog
4. incremental

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40. Header file syntax for Stepper motor is

1. #include <stepper.io>
2. #include <wire.io>
3. #include <stepper.h>
4. #include <wire.h>

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41. Bipolar and Unipolar motors have __________ & __________ wires respectively.

1. 4 & 8
2. 6 & 6
3. 4 & 6
4. 8 & 8

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42. How to control direction of two motors connected in a circuit?

1. PWM
2. H-Bridge
3. Brushes
4. Contractors

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43. To tell stepper to turn one or more steps?

1. step (int step.)
2. set step (int rpm)
3. stepper (int steps)
4. stepper (int rpm)

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44. If each turn of the stepper rotates by an angle of 1.8*, the number of steps in a revolution is

1. 360
2. 180
3. 200
4. 90

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45. What kind of controller system is found in CNC machine tools?

1. Hardwired logic
2. Microprocessor based
3. Programmable Logic Controller (PLC.
4. Personal Computer (PC.

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46. Which one of the following is standard coordinate system for NC/CNC machine tool

1. Cartesian
2. Cylindrical
3. Polar
4. All of these.

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47. The basic axes of a CNC turning centre are

1. X and Y
2. Y and Z
3. X and Z
4. X and A.

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48. Total number of basic axes in a vertical machining centre (V MC) is

1. 2
2. 3
3. 4
4. 5

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49. Total number of basic axes in a horizontal boring machine is

1. 2
2. 3
3. 4
4. 5

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50. The axis perpendicular to work holding surface of a CNC shaper is

1. X
2. Y
3. Z
4. W

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51. On a 4 axes horizontal boring machine, the table axis that is parallel to the spindle axis is

1. X
2. Y
3. Z
4. W

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52. The rotary table installed on a vertical machining centre to facilitate boring operation is designated as

1. A axis
2. B axis
3. C axis
4. W axis

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53. The M03 command on a turning centre results into spindle rotation

1. Clockwise looking from tailstock side
2. Counterclockwise looking from headstock side
3. Counterclockwise looking from tailstock side
4. None of the above.

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54. On a horizontal machining centre, + Z motion of the tool results into

1. Table moving towards column
2. Table moving away from column
3. Spindle moving towards table
4. Spindle moving away from table.

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55. Which type of control is found on a vertical machining centre?

1. 2P L control
2. 2C L control
3. 3C control
4. 2C 2L control.

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56. The controller of a horizontal boring machine has

1. 2P L control
2. 2C L control
3. 3C control
4. 2C 2L control.

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57. When the coordinates in a part program arc specified relative to the program zero, it is called:

1. Incrementalmode
2. Absolute mode
3. Rapid mode
4. Canned cycle mode.

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58. In CNC machine axis motors, the __________ is constant.

1. Speed
2. Current
3. Power
4. Torque.

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59. The __________ is constant in CNC machine tool spindle motors.

1. Speed
2. Current
3. Power
4. Torque

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60. In CNC machine tools, the conversion of rotary motion of the motor to linear motion or the axis is done by

1. Nut and screw
2. Timing belt and pulley
3. Recirculating ballscrew
4. Rack and pinion.

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61. Which one is the best slide way for the medium range CNC machine tools?

1. Turcite coated
2. LM guideways
3. Conventional
4. Needle roller type

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62. Which function key is ineffective during thread cutting on a turning centre?

1. Spindle speed override
2. Feed rate override
3. Both a and b
4. None of these

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63. What would be the most suitable feedback device for tool position for automatic tool turret on a turning centre?

1. Incremental rotary encoder
2. Absolute rotary encoder
3. Tacho-generator
4. Linear encoder.

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64. Which one of the following terms represents the ability of the positioning system return to previously defined location?

1. BLU
2. Accuracy
3. Repeatability
4. Precision

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65. Backlash is measured by using

1. Linear encoder
2. Laser Interferometer
3. Recirculating ballscrew
4. Rotary encoder

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66. At the time of retrofitting of a centre lathe, what is required to be changed?

1. Leadscrew
2. Bed
3. Head stock
4. Tail stock

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67. Which one of the following is the fast-operating tool turret?

1. Hydraulic
2. Stepper motor
3. Electro mechanical
4. Pneumatic.

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68. Percentage of slip in the timing belt is

1. 10%
2. 50%
3. 0%
4. Could be any of the above

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69. The type of tool motion observed during execution of the CNC part program block N020 G02 X45Y25R5

1. Circular interpolation-clockwise
2. Linear interpolation
3. Circular interpolation-counterclockwise
4. Rapid positioning

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70. Which of the following operations need NC machine tools with continuous path control? Arc Welding (AW), Milling (M), Drilling (D), Punching in Sheet Metal (P), Laser Cutting of Sheet Metal (LC), Spot Welding (SW)

1. AW, LC and M
2. AW, D, LC and M
3. D, LC, P and SW
4. D, LC, and SW

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71. Which is The Indicators Of Digital Production And Content Generation?

1. Creating of websites or blogs writing
2. using copy and paste tools to duplicate or move information within a document
3. creating electronic presentations with presentation,slides, images, sound, video
4. All

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72. Which word is used to specify tool offsets on a turning centre?

1. H word
2. T word
3. G word
4. M word

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73. Spindle speed for a turning centre can be specified in:

1. Only RPM
2. Only surface m/min. (SMM)
3. Both RPM and SMM
4. mm per revolution

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74. Constant surface speed facility is useful during

1. Thread cutting
2. Taper turning
3. Contour turning
4. both b and c

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75. Which of the following NC blocks is correct?

1. N10 G01 M03 X89.78 Z-12.54R23.15
2. N10 G02 M06 Z-15.66 S800
3. N10 G00 X100.55 Z87.35 F0.2 S1100
4. N10 G02 M03 Z-22.76 F0.2 S 1000

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76. The correct syntax of an NC block for taper turning operation is

1. N_G01 X_F_
2. N_G01Z_F_
3. N_G01 X_Z_F_
4. N_G01 M_X_Y_

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77. For right hand thread cutting on a turning centre, the spindle and tool motions are

1. Spindle clockwise, tool right to left
2. Spindle clockwise, tool left to right
3. Spindle counter clockwise, tool right to left
4. None of the above

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78. In a DNC (Distributed Numerical Control) system

1. NC machine tools cannot be controlled
2. Only a single machine tool can be controlled
3. More than one machine tools can be controlled
4. Many machine tools can be controlled simultaneously

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79. The codes which do not directly help in machining, but arc required for proper functioning of an NC/CNC machine tool are called

1. Preparatory codes
2. Miscellaneous codes
3. T word
4. Sword

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80. The G code used to represent a tapping cycle on a machining centre is

1. G81
2. G82
3. G83
4. G84

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81. The G00 command moves the tool at

1. Rapid traverse while machining
2. Feed rate while machining
3. Rapid traverse without machining
4. Feed rate without machining

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82. G04 performs

1. Circular interpolation CW
2. Circular interpolation CCW
3. Dwell
4. Reference point return

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83. G83 canned cycle on a machining centre is used for

1. Deep hole drilling
2. Spot drilling
3. Boring
4. Tapping

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84. What's the term used to describe 3-D printing when it's used to create models for testing a product's design?

1. Rapid prototyping (RP)
2. Rapid prototype modeling (RPM)
3. Fused deposition modeling (FDM)
4. CAD

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85. Which of the following 3-D printing approaches involves melting the material, then allowing it to cool and solidify to form each new layer?

1. Solidifying
2. Sintering
3. Binding
4. Melting

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86. If you print out something on a 3-D printer, which file format should you convert your file to?

1. STL
2. SLT
3. SLS
4. STL and Obj

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87. Which technology makes it possible to obtain full-color parts?

1. FDM
2. SLA
3. SLS
4. Powder Binding

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88. Which of the following statements is/are correct about 3-D Printing?

1. 3D printing is based on methods of applying a 2D image on a 3D surface
2. The 3D printer can print with anything that can be dispensed from a syringe as liquid or paste.

1. Only 1
2. Only 2

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3. Both
4. None

89. Low-cost 3D printing got a kickstart from an open source project intending to produce a self-replicating device. What is its name?

1. DubStep
2. RepRap

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3. ClapTrap
4. None of the above

90. What is the purpose of slicing software?

1. The slicer breaks down the model layer by layer
2. 3D printing slicing software controls every aspect of your 3D print

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3. It translates 3D models into instructions your printer understands
4. All the Above

91. Which Printing method is suitable for metal printing?

1. SLS
2. Binderjet

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3. FDM
4. SLA

92. What is post-processing?

1. Smoothing and finishing the 3d printed part
2. Slicing the cad Model

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3. Support structure removal and cleaning
4. A and B

93. What is the one of the following statements is correct about Speed?

1. changing 3D printer layer height settings is to increase print speed.
2. Layer height is the exact height of each layer of plastic extruded, cured, or sintered by a 3D printer.

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3. 3D printer layer height is typically measured in microns, one micron being equivalent to 0.001 mm.
4. All The Above.

94. Which affects the size of the line/extrusion width of the print?

1. Filament Type
2. Layer Height

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3. Resolution
4. Nozzle size

95. Print speed affects quality mostly due to

1. vibrations from the printer frame/chassis as well as heavy X gantry / moving heated beds.
2. layer height

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3. Infill
4. Filament Type

96. Thickness of the layer height determines

1. Resolution
2. Smooth Surface

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3. Quality
4. All the Above

97. PLA means

1. Poly lactic Acid
2. Polyester

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3. Polymer

98. ABS means

1. Acrylonitrile Butadiene Styrene
2. Acrylonitrile Butadiene silicate
3. Acrylonitrile Buta Styrene

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4. None of the above

99. How many motors can connect with Ramps 1.4 Board?

1. 6 Stepper motos and 6 servo motors
2. 5Stepper motos and 5servo motors
3. 4Stepper motos and 4 servo motors

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4. 4Stepper motos and servo motors

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