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i. Check the normality by 2 (chi-square) test.ii. Measurement of angle of template by -Bevel protractor

iii. Study of Height Gauges.

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1. If mean =15.12, standard deviation = 1.02. A given range 14.00 x < 15.20 should containe number of data. What is the value e for the range if sample size n=150.

2. The following table indicates the average number of injuries per thousand man-hours in a sample of 50firms taken from a particular industry and their expected frequencies. Test the Ho that the observed

frequencies in this sample follow a normal distribution, using = 0.05.

Table : Industrial injuries in 50 firmsAverage number of injuries

per 1000 man-hours Number of firms

Expectedfrequency

1.5 1.71.8 2.02.1 2.32.4 2.62.7 2.93.0 3.2

31214975

4.58.5

13.513.07.53.5

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3. Using the universal bevel protractor available in the lab the minimum angle we can measure is

(a) 1/60 degrees (b) 1/24 degrees (c) 1/12 degrees (d) 3/48 degrees

4. Using the dial height gauge you used any of the following height can be measured except

(a) 25.32 mm (b) 13.14 mm (c) 39.13 mm (d) 37.02

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Experiment # 02Experiment Name:i. Measurements of splines. 08

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ii. Determination of radius of concave arc.iii. Measurement of screw thread by wire.

Experiment # 03Experiment Name:i. Design and implementation of a Lot-by-Lot Acceptance Sampling Plan. 08

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ii. Measurement of propeller by using pitchometer.

Experiment # 04Experiment Name:

i. Measurement of angle by a) 3 rollers andb) 2 rollers.

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ii. Measurement of bore by a) Two balls andb) Pin gauge.

1. What is the difference between a measuring tool and a gauge?

2. What happens when the diameter of both the balls are equal for two ball method??

3. How does the error in measurement can be eliminated?

4. D

DS

22sin

+=

. Assuming S to be 50.01 mm, find the error.

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Experiment # 05Experiment Name:

i. Measurements of tapers by rollers, slip-gauges and micrometer.ii. Ring gauge measurement by unequal balls.

iii. Taper plug measurement by sine bars and dials gauges.

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1. While measuring the taper surface of the fig below ,data obtained was as follows:H1 = 0cm, H 2 =1m , h 1=10 cm , h 2 =990 cm , M 2 =0.5 m , M 1=0.1 m , d= 20cmDetermine Ds and D L .

2. Determine the large end dia D Land small end dia Ds of a inner cone below.Given d 2 =20mm , d 1= 40mm, h 1 =05mm , h 2 = 200mm , H=250 mm

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