Math A

Error in Measurement

 

Answer the following questions dealing with error in measurement.

 

1.

If the tolerance of a dimension on a machine part is listed as
2.54 cm 0.03 cm, 
which dimension does not meet specified tolerance?

Choose:

2.54 cm
2.56 cm
2.58 cm
2.51 cm 

 

 

2.

A computer monitor is rectangular in shape.  To the nearest inch, the length of the monitor is 15 inches and its width to the nearest inch is 13 inches.

 What is the least possible value of the area of the computer monitor to the nearest ten?

 

 

 

3.

Bosie, the cow, weighs 851 pounds, to the nearest pound.  Which weight listed cannot be the actual weight of the cow?

Choose:

850.6 pounds
851.0 pounds
851.4 pounds
851.6 pounds

 

 

 

4.

 

A square has an area of 30 square centimeters when rounded to the nearest square centimeter.  Which length could be the greatest possible value for the side of the square in centimeters?

Choose:

5.432 cm
5.477 cm
5.522 cm

5.523 cm

 

 

5.

A box is 15 inches long, 12 inches wide and 8 inches high when the dimensions are rounded to the nearest inch.  Assuming the measurements are off by 1%,  find to the nearest cubic inch, the largest possible volume of the box.

Choose:

1397
1440
1484
1491

 

 

6.

The radius of this circular dartboard is measured as 9 inches, rounded to the nearest inch.  The actual radius is 8.6 inches.  What, to the nearest percent, is the percent of error in the measurement of the radius?

Choose:

3%
4%
5%
6%

 

 

7.

A measurement is taken with a metric ruler with a precision of 0.1 cm.  The measurement is 3.4 cm.  What is the tolerance interval for this measurement?

Choose:

3.3 to 3.5 cm
3.35 to 3.45 cm
3.35 to 3.44 cm
3 to 4 cm

 

 

8.

A part for a vacuum cleaner is to have a width of 1.7 inches 0.2 inch.  What is the lower limit of the tolerance interval for this measurement?

Choose:

1 in
1.5 in
1.9 in
2 in

 

 

9.

If the circumference of a circle is 471.24 inches, find the number of square inches in the area of the circle. 
 

Choose:

17671.54132
17681.3
17664.4123

 

 

10.

The width of this animal's pawprint is 3 inches to the nearest inch.  Which of the numbers listed cannot be the actual width of the pawprint?

Choose:

2.4 in
2.8 in
3.2 in
3.4 in

 

 

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Roberts