IES-ESE Mechanical Engineering: Questions 19 - 24 of 81
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Question number: 19
Appeared in Year: 1994
Which of the following materials can be used for making patterns?
1. Aluminium 2. Wax 3. Mercury 4. Lead
Select the correct answer using the codes given below:
2, 3 and 4
1, 2 and 3
1, 2 and 4
1, 3 and 4
Question number: 20
Appeared in Year: 2012
The ratio of surface area of volume for a unit volume of riser is minimum in case of
Question number: 21
Appeared in Year: 2011
The relationship between total freezing time t, volume of the casting V and its surface area A, according to Chvorinov’s rule is:
|d.||None of the above|
Question number: 22
Question number: 23
Question number: 24
Appeared in Year: 2007
Steel can be melted in hot blast cupola.
In hot blast cupola, the flue gases are used to preheat the air blast to the cupola so that the temperature in the furnace is considerably higher than that in a conventional cupola.
|a.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
|b.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|c.||Both Ꭺ and Ꭱ are false|
|d.||Ꭺ is true but Ꭱ is false|