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Statement (I): To use a sensor, we generally need to add signal conditioning circuitry, such as circuits which amplify and convert from analog to digital, to get the sensor signal in the right form, take account of any non-linearities, and calibrate it. Statement (II): A smart sensor is integrated with the required buffering and conditioning circuitry in a single element and provides functions beyond that of just a sensor.
The Coordinator of an International Virtual Conference has planned six guest lectures on different areas-Cryptography, Fluid Dynamics, Big Data Analysis, Wavelet Theory, Differential Equations and Linear Algebra-to be organised only one on each day from Monday to Sunday.  Wavelet Theory should be organised immediately after Differential Equations.  Big Data Analysis should be organised on Wednesday and should not be followed by Linear Algebra.  Fluid Dynamics should be organised on Friday and there should be a gap of two days between Cryptography and Linear Algebra.  One day there will be no lecture (Saturday is not that day), and just before that day Linear Algebra will be organised. How many lectures are organised between Big Data Analysis and Wavelet Theory? 
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 statements with respect to the degree of accuracy in estimating. Assertion (A): The accuracy to be observed in preparing an estimate depends on the rate of the item and unit of payment. Reason (R): The higher the rates the greater should be the accuracy with which the quantities are calculated.
Which of the following statements are correct for temperature rise in metal cutting operation? 1) It adversely affects the properties of tool material. 2) It provides better accuracy during machining. 3) It causes dimensional changes in workpiece and affects accuracy of machining. 4) It can distort the accuracy of machine tool itself
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.
A displacement sensor (a dial indicator) measures the lateral displacement of a mandrel mounted on the taper hole inside a drill spindle. The mandrel axis is an extension of the drill spindle taper hole axis and the protruding portion of the mandrel surface is perfectly cylindrical measurements are taken with the sensor placed at two positions P and Q as shown in the figure. The readings are recorded as Rx = maximum deflection minus minimum deflection, corresponding to sensor position at X, over one rotation. If RP = RQ > 0, which one of the following would be consistent with the observation?
Consider a discrete-time system which satisfies the additivity property, i.e., if the output for u1[n] is y1[n] and that for u2[n] is y2[n], then output for u1[n] + u2[n] is y1[n] + y2[n]. Such a system is : 1. Linear 2. Non-linear 3. Sometimes Linear and Sometimes non-linear
The influence of shape of aggregate in strength and workability of concrete are given below in statements S1, S2, S3 and S4. Which of the statements are correct? S1: Rounded aggregate produces concrete with high workability and low strength. S2: Angular aggregate produces concrete with high workability and low strength. S3: Rounded aggregate produces concrete with low workability and high strength. S4: Angular aggregate produces concrete with low workability and high strength.
Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). Assertion (A): Barani writes, ‘Sultan Muhammad Tughlaq talked as if he hated low-born people more than he hated idols, Nevertheless, I have seen him promoting Najba, the low-born son of a musician, to such an extent that he rose higher in status than many maliks, for Gujarat, Multan and Badaon were put in his charge . . . It was strange how he gave high offices and governments of extensive territories and great provinces to men of low and mean birth’. Reason (R): The Sultan believed in offices being open to talent. He dispensed with whatever considerations of birth had persisted in the administration and appointed low-born persons to the highest offices in the administration. In the context of the above two statements which of the following is correct ?