Question

Group - B
(Long Answer Type Questions)
Answer any two from the following: 2x10=20
QUESTIONS
QUESTION NO.
MARKS
CO
5
5
10
The workmen in an engineering company are expected to work for 400
minutes in a shift for 8 hours. The remaining time is meant for rest and
personal needs etc.
i) Determine the standard time per piece of a job whose
normal time is 2 minutes.
ii) Calculate the number of pieces to be produced per day.
10 samples, each of size 50, of a pipe were inspected in pressure testing.
The results of the inspections are given below:
Sample number 1 2 3 4 5 6 7 8 9 10
Number of defectives 2 3 2 0 2 3 2 1 2 3
Draw the control chart and state whether the process is under control or
6
10
not.
7.
10
State the significanc
--
C​

Answer 1

Answer:

normal time per piece=0.866min

rest and personal allowance=0.15×0.866=0.2299min

contingency allowance =0.02×0.866=0.01732min

standard time per piece.

normal time + rest and personal allowance

+ contingency allowance

= 0.866+0.1299+0.01723

=1.0132