1
GATE ME 2009
MCQ (Single Correct Answer)
+1
-0.3
Which of the following forecasting methods takes a fraction of forecast error into account for the next period forecast?
A
simple average method
B
moving average method
C
weighted moving average method
D
exponential smoothing method
2
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
Consider the following Linear Programming problem $$(LLP)$$

Maximize: $$Z = 3{x_1} + 2{x_2}$$
$$\,\,$$ Subject $$\,\,$$ to
$$\eqalign{ & \,\,\,\,\,\,\,{x_1} \le 4 \cr & \,\,\,\,\,\,\,{x_2} \le 6 \cr & 3{x_1} + 2{x_2} \le 18 \cr & {x_1} \ge 0,\,\,{x_2} \ge 0 \cr} $$

A
The $$LPP$$ has a unique optimal solution.
B
The $$LPP$$ is infeasible
C
The $$LPP$$ is unbounded
D
The $$LPP$$ has multiple optimal solutions.
3
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
Six jobs arrived in a sequence as given below: GATE ME 2009 Industrial Engineering - Scheduling Question 7 English

Average flow time (in days) for the above jobs using Shortest Processing Time rule is

A
$$20.83$$
B
$$23.16$$
C
$$125.00$$
D
$$139.00$$
4
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
A forged steel link with uniform diameter of $$30mm$$ at the centre is subjected to an axial force that varies from $$40kN$$ in compression to $$160kN$$ in tension. The tensile $$\left( {{S_U}} \right),$$ yield $$\left( {{S_y}} \right)$$ and corrected endurance $$\left( {{S_e}} \right)$$ strengths of the steel material are $$600MPa, 420MPa$$ and $$240MPa$$ respectively. The factor of safety against fatigue endurance as per Soderberg’s criterion is
A
$$1.26$$
B
$$1.37$$
C
$$1.45$$
D
$$2.00$$
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