CMA（P1）備***——Performance

　　1、Lee manufacturing uses a standard cost system with overhead applied based on direct labor hours. The manufacturing budget for the production of 5,000 units for the month of June included 10,000 hours of direct labor at $15 per hour, $150,000. During June, 4,500 units were produced, using 9,600 direct labor hours, incurring $39,360 of variable overhead, and showing a variable overhead efficiency variance of $2,400 unfavorable. The standard variable overhead rate per direct labor hour was
　　A. $3.85.
　　B. $4.00.
　　C. $4.10.
　　D. $6.00.
　　2、MinnOil performs oil changes and other minor maintenance services (e.g., tire pressure checks) for cars. The company advertises that all services are completed within 15 minutes for each service. On a recent Saturday, 160 cars were serviced resulting in the following labor variances: rate, $19 unfavorable; efficiency, $14 favorable. If MinnOil’s standard labor rate is $7 per hour, determine the actual wage rate per hour and the actual hours worked.
　　3、The following information is from the accounting records of St. Charles Enterprises.　　A staff assistant performed a comparison of budget and actual data, and calculated an unfavorable operating income variance of $65,750. The assistant concluded that performance did not meet expectations because there was an unfavorable variance in operating income. Which one of the following is the best *uation of this preliminary conclusion?
　　A. Both the conclusion and the variance calculation are correct.
　　B. The conclusion is incorrect, but the variance calculation is informative.
　　C. The conclusion is correct, but the variance calculation could be more informative.
　　D. Both the conclusion and the variance calculation are incorrect.
　　4、For a given time period, a company had a favorable material quantity variance, a favorable direct labor efficiency variance, and a favorable fixed overhead volume variance. Of the following, the one factor that could not have caused all three variances is
　　A. the purchase of higher quality materials.
　　B. the use of lower-skilled workers.
　　C. the purchase of more efficient machinery.
　　D. an increase in production supervision.
　　5、 Marten Company has a cost-benefit policy to investigate any variance that is greater than $1,000 or 10% of budget, whichever is larger. Actual results for the previous month indicate the following.
　　The company should investigate
　　A. neither the material variance nor the labor variance.
　　B. the material variance only.
　　C. the labor variance only.
　　D. both the material variance and the labor variance.