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The elemental timings are given below along with the respective ratings. Assuming rest and personal allowance as 12% and contingency allowance of 2%, calculate the standard time for the operation.

written 6.7 years ago by teamques10 ★ 68k

•   modified 2.9 years ago

Element	Observed time	Rating	Remark
A	0.20	90	-
B	0.05	80	-
C	0.03	100	-
D	0.78	100	-
E	0.06	100	-
F	0.05	100	-
G	0.02	85	Once in 5 pieces
H	0.06	80	-
I	0.10	90	-
J	0.04	90	Once in 20 pieces

industrial engineering and management

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written 6.7 years ago by teamques10 ★ 68k

•   modified 6.7 years ago

The normal time for each component as shown in following table:

Element	Observed time	Rating	Frequency	Normal time
A	0.20	90	1	0.180
B	0.05	80	1	0.040
C	0.03	100	1	0.030
D	0.78	100	1	0.780
E	0.06	100	1	0.060
F	0.05	100	1	0.050
G	0.02	85	1/5	0.034
H	0.06	80	1	0.048
I	0.10	90	1	0.090
J	0.04	90	1/20	0.018

Normal time for the operation=1.330

Standard time=Normal time + allowance

=1.330(1+0.14)

=1.5162 min.

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