Manufacturing and Industrial Engineering [GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering (ME)]: Questions 37 - 40 of 606
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Question 37
Appeared in Year: 1993
Question MCQ▾
In ultrasonic machining process, the material removal rate will be higher for materials with
Choices
Choice (4) | Response | |
---|---|---|
a. | Higher ductility | |
b. | Higher toughness | |
c. | Higher fracture strain | |
d. | Lower toughness |
Question 38
Appeared in Year: 1995
Question MCQ▾
Light impurities in the molten metal are prevented from reaching the mould cavity by providing a
Choices
Choice (4) | Response | |
---|---|---|
a. | Skim bob | |
b. | Strainer | |
c. | Button well | |
d. | None of the above |
Question 39
Appeared in Year: 1996
Question MCQ▾
If at the optimum in a linear programming problem, a dual variable corresponding to a particular primal constraint is zero, then it means that
Choices
Choice (4) | Response | |
---|---|---|
a. | The objective function is unbounded | |
b. | Right hand side of the primal constraint can be altered without affecting the optimum solution | |
c. | The problem is degenerate | |
d. | Changing the right hand side of the primal constraint will disturb the optimum solution |
Question 40
Appeared in Year: 2004
Question MCQ▾
Misrun is a casting defect which occurs due to
Choices
Choice (4) | Response | |
---|---|---|
a. | Very high pouring temperature of the metal | |
b. | Improper alignment of the mould flasks | |
c. | Insufficient fluidity of the molten metal | |
d. | Absorption of gases by the liquid metal |