Monthly Archives: February 2016

In the manufacture of armatures for electric motors, inspection results pf 20 sample of each having.



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Question

In the manufacture of armatures for electric motors, inspection results pf 20 sample
of each having 100 units of armatures in given in the following table.
Calculate the average fraction defective and control limit. Construct a “p-chart”
and comment about the process.


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The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by 1/5.



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Question

The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by 1/5 of the current wages and the working hours decrease by 1/24 of the current period, then the new cost of erection in Rs. is (A) 16,500 (B) 15,180 (C) 11,000 (D) 10,120

 



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In a glass factory , they go in for measuring the thickness of the class by taking 5 samples from…



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Question

In a glass factory , they go in for measuring the thickness of the class by
taking 5 samples from lot of 100 and 6 lots are checked on machine-3.
Here , the quality characteristics measured is “Thickness”. Consider for the
following samples shown in a table.
Draw the mean and range charts and plots the values. State whether the
process is under statistical control or not. Comment about process.


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3. There are two objects- $product1 = new Shop(); $product2 = new Shop(); Which one of the following



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Question

3. There are two objects-
$product1 = new Shop();
$product2 = new Shop();
Which one of the following statements is right about them?
a) $product1 and $product2 are same objects of the same type generated from a single class.
b) $product1 and $product2 are different objects of the same type generated from a single class.
c) $product1 and $product2 are same objects of the different type generated from a single class.
d) $product1 and $product2 are different objects of the different type generated from a single class.

 



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A bar is subjected to fluctuating tensile load from 20 kN to 100 kN. The material has yield strength



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Question

A bar is subjected to fluctuating tensile load from 20 kN to 100 kN. The material has yield strength of 240 MPa and endurance limit in reversed bending is 160 MPa. According to the Soderberg principle, the area of cross-section in mm 2 of the bar for a factor of safety of 2 is (A) 400 (B) 600 (C) 750 (D) 1000


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During the electrochemical machining (ECM) of iron (atomic weight = 56, valency = 2) at current of..



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Question

During the electrochemical machining (ECM) of iron (atomic weight = 56, valency = 2) at current of 1000 A with 90% current efficiency, the material removal rate was observed to be 0.26 gm/s. If Titanium (atomic weight = 48, valency = 3) is machined by the ECM process at the current of 2000 A with 90% current efficiency, the expected material removal rate in gm/s will be (A) 0.11 (B) 0.23 (C) 0.30 (D) 0.52

 



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PaAmit’s preference is given by the utility function=???{(?+2?),4?}. Amit has chosen 5 units each…



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Question

PaAmit’s preference is given by the utility function=???{(?+2?),4?}. Amit has chosen 5 units each ofX and Y when priceof X is 2 units. Amit’s total spending on X and Y is(a)30(b) 4(c) 25(d) Insufficient dataste a snippet of question here.

 



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