Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
Normal time equals the average observed time multiplied by the allowance factor.
False
Labor standards based on historical experience are the preferred method of choice.
The World Trade Organization helps provide governments and industries around the
world with protection from firms that engage in unethical conduct.
Manufacturers may want to locate close to their customers, if the transportation of
finished goods is expensive or difficult.
MRP can be effective only if very accurate lot sizes are calculated in advance.
Labor planning determines employment stability.
Decision trees and decision tables can both solve problems requiring a single decision,
but decision tables are the preferred method when a sequence of decisions is involved.
The Wagner-Whitin algorithm is the most widely used MRP lot-sizing technique.
Because most services cannot be inventoried, there is little place for JIT to help service
organizations achieve competitive advantage.
In terms of linear programming, the fact that the solution is infeasible implies that the
"profit" can increase without limit.
Ergonomics is a branch of economics that deals with costs of scheduling workers.
TPM (total productive maintenance) is an application of TQM (total quality
management) principles to the area of maintenance.
Which of the following statements best characterizes delivery reliability?
A) a company that always delivers on the same day of the week
B) a company that always delivers at the promised time
C) a company that delivers more frequently than its competitors
D) a company that delivers faster than its competitors
E) a company that has a computerized delivery scheduling system
Which of the following projects were completed by Bechtel?
A) Hoover Dam
B) Boston Central Artery/Tunnel
C) Rebuilding Kuwait after Iraq's invasion in 1990
D) Rebuilding Iraq after the U.S. invasion, starting in 2003
E) All of the above were Bechtel projects
Which of the following is most likely to affect the location decision of a service firm
rather than a manufacturing firm?
A) energy and utility costs
B) attitude toward unions
C) parking and access
D) cost of shipping finished goods
E) labor costs
One of the advantages of simulation is that
A) it is much less expensive than a mathematical solution
B) it always generates a more accurate solution than a mathematical solution
C) it can study the interactive effects of individual components or variables
D) model development is less time consuming than for mathematical models
E) model solutions are transferable to a wide variety of problems
A manufacturing plant allows its engineers to come in at 7 A.M. plus or minus an hour
but still requires them to work 8 hour days. Which of the following scheduling
techniques is the firm employing?
A) flextime
B) constant employment
C) part-time status
D) flexible workweek
E) compressed workweek
The person most responsible for popularizing interchangeable parts in manufacturing
was
A) Frederick Winslow Taylor
B) Henry Ford
C) Eli Whitney
D) Whitney Houston
E) Lillian Gilbreth
The Northwest-Corner rule's biggest flaw is that
A) it ignores costs
B) it cannot generate feasible solutions
C) it never generates ideal solutions
D) it ignores shipping time
E) There are no major flaws.
A company is designing a product layout for a new product. It plans to use this
production line eight hours a day in order to meet a schedule of 400 units per day. The
tasks necessary to produce this product are detailed in the table below.
a. Draw the network described in the table.
b. Without regard to a production schedule, what is the minimum possible cycle time
(in seconds) for this situation; what is the maximum?
c. What is the required cycle time (in seconds) in order to meet the schedule?
d. What is the theoretical minimum number of workstations needed to meet the
schedule?
e. Balance this line using longest processing time.
f. What is the efficiency of the balance obtained in part e?
Students arrive randomly at the help desk of the computer lab. There is only one service
agent, and the time required for inquiry varies from student to student. Arrival rates
have been found to follow the Poisson distribution, and the service times follow the
negative exponential distribution. The average arrival rate is 12 students per hour, and
the average service rate is 20 students per hour. What is the utilization factor?
A) 20%
B) 30%
C) 40%
D) 50%
E) 60%
A retailer is deciding how many of a certain product to stock. The historical probability
distribution of sales for this product is 0 units, 0.2; 1 unit, 0.3; 2 units, 0.4, and 3 units,
0.1. The product costs $8 per unit and sells for $25 per unit. The largest conditional
value (profit) in the entire payoff table for this scenario is
A) $-24 profit
B) $-8 profit
C) $17 profit
D) $51 profit
E) $75 profit
The mean and standard deviation for a process for which we have a substantial history
are µ = 120 and = 2. For the x-bar chart, a sample size of 16 will be used. What is the
mean of the sampling distribution?
A) 1/8 (0.125)
B) 7.5
C) 2
D) 40
E) 120
A single-phase waiting-line system meets the assumptions of constant service time or
M/D/1. Units arrive at this system every 10 minutes on average. Service takes a
constant 4 minutes. The average length of the queue Lq is
A) 0.4
B) 0.133
C) 4.167
D) 4.583
E) 6
An operations manager's ethical responsibilities
A) are limited to the production phase of product life cycle
B) are limited to following published laws and regulations
C) extend from design, to production, to final destruction/disposition of a product
D) do not include being efficient with the firm's resources
E) need not consider a product design's impact on the entire economy
The planning tasks associated with staffing, production, inventory, and sub-contracting
levels typically fall under
A) short-range plans
B) intermediate-range plans
C) long-range plans
D) demand options
E) strategic planning
Describe some impacts of noise in the workplace.
Identify the five core elements of ISO 14000.
The earliest industrial application of learning curves came from a report by
__________.
Describe some ways that effective supply-chain partners build and utilize mutual trust.
__________ is an approach that specifies the tasks that constitute a job for an individual
or a group.
A firm is considering two countries to outsource its call center. Currently the weighted
factor method has given a score of 120 to the first country and 110 to the second
country. If the
second country wants to improve its score in the labor rating (weight=1.5), how much
must it increases its labor rating by to have a score greater than or equal to country 1?
The lunch counter at a small restaurant has difficulty handling the lunch business.
Currently, there is only one cashier in a single-channel, single-phase system. The
restaurant has collected information on the interarrival time, and service time
distributions from past lunch hours. They are represented in the tables below. Use the
following two-digit random numbers given below to simulate 10 customers through the
checkout system. What is the average time in line, and average time in system? (Set
first arrival time to the interarrival time generated by first random number.
Random numbers for interarrival times: 32, 73, 41, 38, 73, 01, 09, 64, 34, 44
Random numbers of service times: 84, 55, 25, 71, 34, 57, 50, 44, 95, 64
List and briefly describe the three major types of forecasts.
