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Which of the following option is true for given statements about gear measurement? Statement 1: There is no effect of cutter accuracy on the accuracy of gear. Statement 2: Accuracy of individual elements is necessary for precision gears.

Which of the following option is true for given statements about gear measurement? Statement 1: There is no effect of cutter accuracy on the accuracy of gear. Statement 2: Accuracy of individual elements is necessary for precision gears. Correct Answer F, T

The accuracy of any gear mainly depends upon the cutter accuracy and the setting of the machine. Optical projection and rolling tests will suffice for most of the gears. It is necessary to determine the accuracy of individual elements in the manufacture of high precision gears.

Related Questions

Consider the following statements regarding precision in measurements of a quantity: 1. Precision is the measure of the spread of the incident errors. 2. Precision is independent of the realizable correctness of the measurement. 3. Precision is usually described in terms of number of digits used in the measurement by a digital instrument. Which of the above statements are correct?
Consider two shafts connected with two gears as per the following options: 1. One on each shaft 2. Through an intermediate gear mounted on an intermediate shaft, and every shaft having one gear only 3. Through an intermediate gear mounted on an intermediate shaft, with the intermediate shaft having two gears, whereas the other shafts have one gear each Which of the above represent(s) a simple gear train?
A gear train consist of spur gear as shown. Gear A receives 4kW of power at 750rpm through its shaft and rotates in CW direction. A gear train consist of spur gear as shown. Gear A receives 4kW of power at 750rpm through its shaft and rotates in CW direction. Calculate the torque on the gear C if number of teeth on gear A, B and C are 40, 70 and 30.
A planetary gear train is shown in the figure. Number of teeth on the sun gear A, planet gear B and fixed ring gear D are given by 30, 70 and 140 respectively. Module is taken as 5mm. A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the gear ratio.
Which of the following statements are correct (i) Accuracy is the closeness with which an instrument approaches the true value as the quantity being measured. (ii) Precision is a measure of reproducibility of the measurement. (iii) Precision of an instrument can be improved upon by calibration. (iv) Accuracy may be specified in terms of limiting error.
Which of the following statements are correct? 1. Accuracy is the closeness with which an instrument approaches the true value of the quantity being measured. 2. Precision is a measure of the reproducibility of the measurement. 3. Precision of an instrument can be improved upon by calibration. 4. Accuracy may be specified in terms of limits of errors.
Consider the following two C code segment. Y and X are one- and two-dimensional arrays of size n and n × n respectively, where 2 ≤ n ≤ 10. Assume that in both code segments, elements of y are initialized to 0 and each element X[i] [j] of array X is initialized to i + j. Further assume that when stored in main memory all elements of x are in same main memory page frame. Code segment 1:                 //initialize elements of y to 0                 //initialize elements X[i] [j] of X to i+j                       for (i = 0; i < n; i++)                                 Y[i] += X[0] [i]; Code Segment 2:                 //initialize elements of Y to 0                 //initialize elements X[i] [j] of X to i+j                        for (i = 0; i < n; i++)                                 Y[i] += X[i] [0]; Which of the following statements is/are correct? S1: Final contents of array Y will be same in both code segments S2: Elements of array X accessed inside the for loop shown in code segment 1 are contiguous in main memory S3: Elements of array X accessed inside the for loop shown in code segment 2 are contiguous in main memory
Imagine, you are solving a classification problems with highly imbalanced class. The majority class is observed 99% of times in the training data. Your model has 99% accuracy after taking the predictions on test data. Which of the following is true in such a case?
1. Accuracy metric is not a good idea for imbalanced class problems.
2.Accuracy metric is a good idea for imbalanced class problems.
3.Precision and recall metrics are good for imbalanced class problems.
4.Precision and recall metrics aren't good for imbalanced class problems.
Consider the following statements in case of reverted gear train: 1. The direction of rotation of the first and the last gear is the same. 2. the direction of rotation of the first and the last gear is opposite. 3. The first and the last gears are on the same shaft. 4. The first and the last gears are on separate but co-axial shafts. Which of these statements is/are correct?
Consider the following statements: 1. In spur gears, the contact occurs abruptly on a line parallel to the axis, and the disengagement too is abrupt. 2. In helical gears, both loading and unloading are gradual, and therefore, these happen more smoothly and less noisily 3. When two gears mesh, any arbitrary shape of the tooth can be chosen for the profile of the teeth of any one of the two gears, and the profile for the other shall be obtained by applying the law of gearing. Which of the above statements are correct?