MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 180 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The compressed air is delivered to the pneumatic system through the air compressor. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 52. |
The compressed air flows to the actuator through |
| A. | pipes and valves |
| B. | shafts |
| C. | motors |
| D. | flow control valve |
| Answer» B. shafts | |
| 53. |
In which type of system does power transmission takes place through compressed air? |
| A. | fluid power system |
| B. | hydraulic system |
| C. | pneumatic system |
| D. | stepper motors |
| Answer» D. stepper motors | |
| 54. |
Which of the following is a destructive method in measuring surface finish? |
| A. | gloss measurement |
| B. | taper sectioning |
| C. | diffraction technique |
| D. | micro interferometer |
| Answer» C. diffraction technique | |
| 55. |
Which of the following is the direct measure of surface finish in Wallace surface dynamometer? |
| A. | time of swing |
| B. | angle of swing |
| C. | length of swing |
| D. | height of swing |
| Answer» B. angle of swing | |
| 56. |
Which of the following is not true for the method of measurement of surface finish by micro interferometer? |
| A. | optical flat is used |
| B. | monochromatic source of light is used |
| C. | depth of defect can’t be measured |
| D. | interference lines plays an important role in identification of the defect |
| Answer» D. interference lines plays an important role in identification of the defect | |
| 57. |
In case of vertical illumination in measuring surface finish with surface photographs, which will appear as bright area? |
| A. | flat portion |
| B. | scratch |
| C. | irregularity |
| D. | hills |
| Answer» B. scratch | |
| 58. |
Which of the following method use pendulum in measuring the surface finish? |
| A. | micro interferometer |
| B. | wallace surface dynamometer |
| C. | reflected light intensity method |
| D. | microscopic inspection |
| Answer» C. reflected light intensity method | |
| 59. |
Which of the following is true for a method of measurement of surface finish with surface photographs? |
| A. | different type of illumination is needed |
| B. | no effect of type of illumination |
| C. | same type of illumination is needed |
| D. | monochromatic light is needed |
| Answer» B. no effect of type of illumination | |
| 60. |
In the method of microscopic inspection what is the angle of beam light with the work? |
| A. | 200 |
| B. | 300 |
| C. | 600 |
| D. | 900 |
| Answer» D. 900 | |
| 61. |
What is the limitation of microscopic inspection to check surface finish? |
| A. | an average value is needed |
| B. | small portion of surface can be detected at a time |
| C. | a master finish surface is also needed |
| D. | it is necessary to inspect whole surface together |
| Answer» C. a master finish surface is also needed | |
| 62. |
Which of the following material is not used for rubbing on the surface to be inspected in scratch inspection? |
| A. | softer material |
| B. | hard material |
| C. | plastic |
| D. | lead babbitt |
| Answer» C. plastic | |
| 63. |
Statement 2: Direct instrument measurement is enabled to determine a numerical value of surface finish. |
| A. | f, t |
| B. | t, f |
| C. | f, f |
| D. | t, t |
| Answer» B. t, f | |
| 64. |
best method for examining the surface finish. Visual, touch and scratch inspection methods are not as accurate as microscopic. In these methods, minute flaws can’t be detected. |
| A. | 0.0001 mm |
| B. | 0.001 mm |
| C. | 0.01 mm |
| D. | 0.1 mm |
| Answer» D. 0.1 mm | |
| 65. |
Which of the following is the best for the examination of surface finish? |
| A. | touch inspection |
| B. | visual inspection |
| C. | scratch inspection |
| D. | microscopic inspection |
| Answer» E. | |
| 66. |
Statement 2: Accuracy of individual elements is necessary for precision gears. |
| A. | t, f |
| B. | f, f |
| C. | t, t |
| D. | f, t |
| Answer» E. | |
| 67. |
Which of the following machine is used for rolling tests? |
| A. | parkson gear tester |
| B. | tooth caliper |
| C. | base pitch measuring instrument |
| D. | involute profile testing machine |
| Answer» B. tooth caliper | |
| 68. |
Which of the following statement is true about inspection of gear? |
| A. | profile is determined by functional inspection |
| B. | backlash is determined by analytic inspection |
| C. | analytic test require running test of gear |
| D. | thickness of tooth is measured by functional inspection |
| Answer» C. analytic test require running test of gear | |
| 69. |
Which of the following is not determined by the functional type of inspection? |
| A. | lead |
| B. | noise level |
| C. | variation in action |
| D. | vibration |
| Answer» B. noise level | |
| 70. |
If reference circle of gear is eccentric then which error is reflected by this eccentricity? |
| A. | cyclic error |
| B. | periodic error |
| C. | pitch error |
| D. | undulation |
| Answer» D. undulation | |
| 71. |
Statement 2: Gear blank should be tested for dimensional accuracy. |
| A. | t, f |
| B. | f, f |
| C. | f, t |
| D. | t, t |
| Answer» E. | |
| 72. |
Which of the following element is not determined by analytical inspection? |
| A. | profile |
| B. | composite vibrations |
| C. | spacing |
| D. | pitch |
| Answer» C. spacing | |
| 73. |
Which of the following option is true about an analytical method of inspection of gears? |
| A. | analytical method is widely used for industries |
| B. | this method is fast |
| C. | all individual elements of gear teeth are checked |
| D. | more accurate |
| Answer» D. more accurate | |
| 74. |
Which of the following is not true about concentricity of teeth? |
| A. | fluctuating velocity will be noticed when not concentric |
| B. | can be checked by using projector |
| C. | inaccuracy of parts when not concentric |
| D. | should be tested to ensure the proper heat treatment |
| Answer» E. | |
| 75. |
What is the effect of improper alignment of each tooth? |
| A. | tooth thickness increases |
| B. | face width decreases |
| C. | load will not distributed evenly |
| D. | pitch of teeth reduced |
| Answer» D. pitch of teeth reduced | |
| 76. |
Flanks of the threads connect the crest with the roots. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 77. |
Which of the following is true for the multiple start screw threads? |
| A. | it is produced by a single helical groove |
| B. | grooves should be different in spacing |
| C. | it gives a quick transverse |
| D. | it is formed in a transverse section on a cylinder |
| Answer» D. it is formed in a transverse section on a cylinder | |
| 78. |
Which of the following is not true about effective diameter? |
| A. | also known as pitch diameter |
| B. | it decides quality of fit between nut and screw |
| C. | this is the diameter of minor cylinder |
| D. | it is a very important dimension for screw threads |
| Answer» D. it is a very important dimension for screw threads | |
| 79. |
What is a thread per inch in screw thread? |
| A. | pitch in inches |
| B. | axial distance moved by threaded part |
| C. | reciprocal of pitch in inches |
| D. | radial distance moved by threaded part |
| Answer» D. radial distance moved by threaded part | |
| 80. |
Statement 1: Flank angle of symmetrical thread is known as thread’s half-angle. Statement 2: It is measured parallel to the axis of a thread. |
| A. | t, f |
| B. | f, f |
| C. | t, t |
| D. | f, t |
| Answer» B. f, f | |
| 81. |
What is the alternative name of functional diameter? |
| A. | cone diameter |
| B. | virtual diameter |
| C. | root diameter |
| D. | inside diameter |
| Answer» C. root diameter | |
| 82. |
Which of the following is not true about the axial thickness of screw thread? |
| A. | measured in direction perpendicular to the axis of thread |
| B. | measured on pitch cylinder |
| C. | distance between opposite faces of same thread |
| D. | measured at the same thread |
| Answer» B. measured on pitch cylinder | |
| 83. |
Which of the following is not a name of the major diameter of an external thread? |
| A. | outside diameter |
| B. | crest diameter |
| C. | full diameter |
| D. | cone diameter |
| Answer» E. | |
| 84. |
What is dedendum for external threads? |
| A. | radial distance between pitch and minor cylinder |
| B. | radial distance between major and pitch cylinder |
| C. | radial distance between major and minor cylinder |
| D. | axial distance between major and pitch cylinder |
| Answer» B. radial distance between major and pitch cylinder | |
| 85. |
What type of thread is formed on female screw gauge? |
| A. | external thread |
| B. | internal thread |
| C. | both internal and external |
| D. | major screw thread |
| Answer» C. both internal and external | |
| 86. |
At which part of the precision straight edge is generally lapped? |
| A. | edges only |
| B. | base only |
| C. | base and edges both |
| D. | all over the surface |
| Answer» B. base only | |
| 87. |
Which of the following is not the factor affecting the accuracy of straightness measurement by optics? |
| A. | air turbulence |
| B. | optics fixed rigidly |
| C. | slope error |
| D. | localised heat sources |
| Answer» C. slope error | |
| 88. |
Which of the following option is true for truncation? |
| A. | thread can be tranculated at crest only |
| B. | thread can be tranculatd at root only |
| C. | thread can be tranculated at crest and root both |
| D. | thread can’t be tranculated at crest and root both |
| Answer» D. thread can’t be tranculated at crest and root both | |
| 89. |
What is the range of straightness measurement in straightness measurement optics? |
| A. | ±2.5 mm |
| B. | ±5 mm |
| C. | ±10 mm |
| D. | ±20 mm |
| Answer» B. ±5 mm | |
| 90. |
What is the position of straightness interferometer in straightness measurement optics? |
| A. | before laser head |
| B. | after straightness reflector |
| C. | between laser head and straightness reflector |
| D. | no need of interferometer |
| Answer» D. no need of interferometer | |
| 91. |
What is the name of a pair of straight edges? |
| A. | drum sticks |
| B. | lower pair |
| C. | winding sticks |
| D. | self closed pair |
| Answer» D. self closed pair | |
| 92. |
What is the tolerance of the straightness of a line? |
| A. | maximum deviation from the straight line joining two extremities |
| B. | maximum deviation from the middle point of straight line joining two extremities |
| C. | minimum deviation from the straight line joining two extremities |
| D. | minimum deviation from the middle point of straight line joining two extremities |
| Answer» B. maximum deviation from the middle point of straight line joining two extremities | |
| 93. |
Which of the following represents the quality of straightness in precision engineering? |
| A. | spirit level |
| B. | straight edge |
| C. | autocollimator |
| D. | dial indicator |
| Answer» C. autocollimator | |
| 94. |
Who gave the fundamental principle of straightness measurement? |
| A. | bryan |
| B. | moire |
| C. | euler |
| D. | amedeo |
| Answer» B. moire | |
| 95. |
Which of the following techniques is based on the Fourier transform? |
| A. | structural |
| B. | spectral |
| C. | statistical |
| D. | topological |
| Answer» C. statistical | |
| 96. |
Structural techniques deal with the arrangement of image primitives. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 97. |
The texture of the region provides measure of which of the following properties? |
| A. | smoothness alone |
| B. | coarseness alone |
| C. | regularity alone |
| D. | smoothness, coarseness and regularity |
| Answer» E. | |
| 98. |
What is the study of properties of a figure that are unaffected by any deformation? |
| A. | topology |
| B. | geography |
| C. | statistics |
| D. | deformation |
| Answer» B. geography | |
| 99. |
What is the Euler number of the region shown in the figure below? |
| A. | 1 |
| B. | -2 |
| C. | -1 |
| D. | 2 |
| Answer» C. -1 | |
| 100. |
What is the Euler number of a region with polygonal network containing V,Q and F as the number of vertices, edges and faces respectively? |
| A. | v+q+f |
| B. | v-q+f |
| C. | v+q-f |
| D. | v-q-f |
| Answer» C. v+q-f | |