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WorksheetsDegree of Accuracy in Engineering
Total questions: 30
Worksheet time: 15mins
Round 45.6789 to 2 decimal places.
45.67
45.68
45.677
45.7
Round 12.3456 to 3 decimal places.
12.346
12.345
12.344
12.34
Round 0.98765 to 1 decimal place.
0.9
0.98
1.0
0.99
Round 123.4567 to 2 decimal places.
123.45
123.46
123.44
124.00
Round 7.89123 to 4 decimal places.
7.891
7.8912
Round 0.004567 to 2 significant figures.
0.0046
0.0045
0.00457
0.004
Round 98765 to 3 significant figures.
98800
98700
98600
98000
Round 120034 to 4 significant figures.
120000
120030
120000
120040
Round 0.0007891 to 2 significant figures.
0.00079
0.00078
0.0008
0.000789
Round 345600 to 3 significant figures.
346000
345000
345600
Convert 3/8 to decimal (3 DP).
0.375
0.333
0.38
0.374
Convert 7/16 to decimal (3 DP).
0.437
0.438
0.44
0.436
Convert 5/12 to decimal (3 DP).
0.416
0.417
0.415
0.42
Convert 11/20 to decimal.
0.5
0.55
0.6
0.45
Convert 2/9 to decimal (3 DP).
0.222
0.223
0.22
0.23
A rod measures 125.678 mm. Report to 2 DP.
125.67 mm
125.68 mm
125.7 mm
126 mm
Volume = 2345.6789 cm³. Express to 3 SF.
2350 cm³
2346 cm³
2340 cm³
2345.7 cm³
Convert 13/40 to decimal (3 DP).
0.325
0.326
0.32
0.324
Tolerance = 0.004567 m. Express to 2 SF.
0.0046 m
0.0045 m
0.00457 m
0.005 m
Machine cut = 78.987 mm. Report to 1 DP.
79.0 mm
79 mm
78.9 mm
78.99 mm
The difference between DP and SF is:
DP refers to Data Processing, while SF refers to Salesforce.
DP and SF are both types of databases.
DP is a programming language, while SF is a software tool.
DP and SF are identical terms.
Which of these is 3 SF for 0.004567?
0.0046
0.00457
0.004
0.00456
Why must accuracy be justified in engineering?
To save time
To ensure safety and reduce cost
To make numbers smaller
It is not necessary
Which is a recurring decimal?
0.5
0.333...
0.75
0.125
What happens if we round too early in calculations?
Nothing changes
More accuracy
Errors accumulate
It saves time
If a bolt length is reported incorrectly, what may happen?
It fits perfectly
More accuracy
Errors accumulate
It does not fit
Which measurement shows 2 DP?
45.6
45.67
45.678
45
How many SF in 0.004560?
3
4
5
2
Convert 7/20 to decimal.
0.35
0.36
0.34
0.333
Why are standardised measurements needed in engineering?
To confuse workers
To ensure consistency and communication
To save ink
To make numbers large
