MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Metrology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not related to the drunken thread? |
| A. | Periodic pitch error |
| B. | Erratic pitch error |
| C. | Progressive pitch error |
| D. | Irregular pitch error |
| Answer» D. Irregular pitch error | |
| 2. |
Which of the following is the correct option for given statements about the effect of pitch error?Statement 1: Pitch error can cause progressive tightening on assembly.Statement 2: Tool work velocity ratio will play an important role to prevent pitch errors. |
| A. | T, F |
| B. | F, F |
| C. | F, T |
| D. | T, T |
| Answer» E. | |
| 3. |
Which_of_the_following_is_not_related_to_the_drunken_thread?$ |
| A. | Periodic pitch error |
| B. | Erratic pitch error |
| C. | Progressive pitch error |
| D. | Irregular pitch error |
| Answer» D. Irregular pitch error | |
| 4. |
What is the nature of the graph between cumulative pitch error and length of thread in case of progressive pitch error? |
| A. | Straight line |
| B. | Parabolic |
| C. | Hyperbolic |
| D. | Exponential |
| Answer» B. Parabolic | |
| 5. |
Which of the following are main elements, error in any of these can cause rejection of thread? |
| A. | Major diameter and minor diameter |
| B. | Major diameter, minor diameter and effective diameter |
| C. | Major diameter, minor diameter, effective diameter and pitch |
| D. | Major diameter, minor diameter, effective diameter, angle of thread and pitch |
| Answer» E. | |
| 6. |
Which of the following is not correct when minor and major diameter have errors? |
| A. | Will cause interference between mating parts |
| B. | Flank contact increases |
| C. | Less root section |
| D. | Less wall thickness |
| Answer» C. Less root section | |
| 7. |
What is the formula of virtual effective diameter in case of unified threads? |
| A. | Simple effective diameter + [ (1.73 x pitch error) + 0.0098 p (θ<sub>1</sub> + θ<sub>2</sub>)]. |
| B. | Simple effective diameter – [ (1.73 x pitch error) + 0.0098 p (θ<sub>1</sub> + θ<sub>2</sub>)]. |
| C. | Simple effective diameter + [ (1.59 x pitch error) + 0.0098 p (θ<sub>1</sub> + θ<sub>2</sub>)]. |
| D. | Simple effective diameter – [ (1.59 x pitch error) + 0.0098 p (θ<sub>1</sub> + θ<sub>2</sub>)]. |
| Answer» B. Simple effective diameter ‚Äö√Ñ√∂‚àö√ë‚àö¬® [ (1.73 x pitch error) + 0.0098 p (‚âà√≠‚Äö√†√®<sub>1</sub> + ‚âà√≠‚Äö√†√®<sub>2</sub>)]. | |
| 8. |
Which of the following is periodic pitch error? |
| A. | Successive portion of thread is longer than the mean |
| B. | Successive portion of thread is shorter than the mean |
| C. | Successive portion of thread is longer or shorter than the mean |
| D. | Successive portion of thread is neither longer nor shorter than the mean |
| Answer» D. Successive portion of thread is neither longer nor shorter than the mean | |
| 9. |
What is the virtual change of effective diameter of bolt or nut in case of whitworth thread in terms of error in flank angle? |
| A. | 0.1921 X p(θ<sub>1</sub> + θ<sub>2</sub>) |
| B. | 0.182 X p(θ<sub>1</sub> + θ<sub>2</sub>) |
| C. | 0.0195 X p(θ<sub>1</sub> + θ<sub>2</sub>) |
| D. | 0.0105 X p(θ<sub>1</sub> + θ<sub>2</sub>) |
| Answer» E. | |
| 10. |
What is the virtual change in effective diameter caused by pitch error in whitworth thread? |
| A. | 1.821 X pitch error |
| B. | 1.921 X pitch error |
| C. | 1.111 X pitch error |
| D. | 1.211 X pitch error |
| Answer» C. 1.111 X pitch error | |
| 11. |
What is the effect of pitch error? |
| A. | Increase effective diameter of bolt |
| B. | Decrease effective diameter of screw |
| C. | Increase effective diameter of nut |
| D. | Increase effective diameter of both nut and screw |
| Answer» B. Decrease effective diameter of screw | |