Q.39 Unit of convection heat transfer coefficient is:Ans 1. J/m – K2. W/m – K3. W/m2 – K4. J/m2 – KCorrect Ans: 3
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Q.13 When a pattern is to be withdrawn from the mould, it is first shaken, by striking over it from side to side, so that its surface may be free of the adjoining sand wall of the mould. ...
Q.30 Which of the following is NOT the benefit of CAD?Ans 1. It improves the quality of design2. Modification and alteration in design is not easy3. It improves the accuracy of design4. It improves the productivity of designCorrect ...
Q.18 In car washing shop, car arrives according to the Poisson’s distribution with a mean rate of 5 cars per hour. Washing time per car is exponential with a mean of 10 minutes. At steady state, average waiting ...
Q.14Ans 1. 62.33 N2. 78.18 N3. 66.67 N4. 72.33 NCorrect Ans: 3
Q.46 “The number of cycles of motion completed in one second” is known as:Ans 1. Frequency2. Natural vibration3. Resonance4. PeriodCorrect Ans: 1
Q.9Ans 1.2.3.4.Correct Ans: 1
Q.36 A solid cylinder of diameter 50 mm and height 22.5 mm is forged between two frictionless flat dies to a height of 10 mm. What will be the final diameter of cylinder?Ans 1. 75 mm2. 90 mm3. ...
Q.21 For steady, fully developed laminar flow in a circular tube which is subjected to constant surface heat flux, the value of Nusselt number is constant and given by:Ans 1. 4.362. 3.463. 2.984. 3.66Correct Ans: 1
Q.23 A company has to switchover to automatic machine in place of semi-automatic machine. Following data are available for automatic machine: Time required for job = 2 minutes, Set-up time = 2 hours, Cost/hour = Rs. 20,For semiautomatic ...
