Triple Cylinder

How to determine significant figures while measuring with lab equipment?

How do you know how much significant figures are in the following laboratory equipments?

Or, how many significant figures are needed behind the decimal place? It's thrown me off in chemistry class.

1. Triple beam balance
2. Graduated cylinder
3. Thermometer

A good idea is not read between lines. So the significant figures cannot exceed the resolution (min detectable change versus the value itself. If you measure period of a pendulum as 3.04 sec with a stop watch which can show changes in time only as little as 0.01 sec, then the 3.04 is interpreted as 3.04+/- 0.005 sec. The ratio is 608. Thus frequency = 1/T can be having a significance of only same amount. The inverse is 0.328947, but 1/608 of this is 0.00054. Thus The frequency is
.3289+/- 0.0005. If period had been 0.33sec, interpret it as 0.33+/- 0.005 and ratio being 66, the frequency can be calculated to a significant value of only 3.0303/66 = 0.045. Inverse of 0.33 is 3.0303. So frequency can be expressed as 3.03+/- 0.045.
If thermometer has a graduation of 0.5deg, the significance is limited to indicated temperature
+/- 0.25 deg, (half of min detectable change..). If cylinder reads 3.2 litres and is graduated to 0.1 litre, the value readout is whatever it is +/- 0.05 litre.

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93 Arctic Cat Thundercat 900 triple engine cylinder jug
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99 Yamaha sxr 600 triple cylinders
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YAMAHA 600 SX R SXR VMAX CYLINDER HEAD ENGINE TOP TRIPLE 97 98 99 2000 01 02
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1998 Mach 1 700 Triple Cylinder Head with Thermostat
1998 Mach 1 700 Triple Cylinder Head with Thermostat
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XLT Polaris 600 Triple Mono Block Cylinder Head Cover 3
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Polaris XLT SP RMK 600 triple cylinder piston bearings
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1995 Arctic Cat ZRT 800 Cylinder Head ZRT800 Triple Good Condition
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95 96 97 Arctic Cat 600 triple Cylinder Piston and Head
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95 96 97 Arctic Cat 600 triple Cylinder Head
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97 1997 POLARIS INDY RMK XLT XCR 600 TRIPLE CYLINDER PISTON KIT JUG BARREL
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87 1987 POLARIS INDY RMK RXL EC60PL 600 TRIPLE CYLINDER PISTON KIT JUG BARREL
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07 Yamaha RS Vector GT Cylinder Head Triple 3 Mono Camshaft Cam Cover Top Motor
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95 Polaris Indy XCR 600 Triple Cylinders D37
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99 Ski Doo Mach Z 800 triple SkiDoo MachZ engine cylinder head
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99 Ski Doo Mach Z 800 triple SkiDoo MachZ engine cylinder head cover
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Yamaha Vector RS GT 2007 4 Stroke 3 Cylinder Triple Front Motor Mounts Pair OEM
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Yamaha Vector RS GT 2007 4 Stroke 3 Cylinder Triple Flywheel Stator Pickup Gear
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07 Yamaha RS Vector GT Triple Motor 3 Cylinder Ignition Coils Spart Plug Used
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Polaris XLT XCR 580 Piston kit TRIPLE CYLINDER 1994 1997
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97 00 Ski doo Mach 1 formula III grand touring 700 Cylinder Head Triple
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95 Polaris XLT 600 Triple Cylinders Heads E43
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Yamaha OEM 600 NON PV Cylinder  Piston Vmax Venture SXR Mountain Max Triple
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POLARIS 600 XCR TRIPLE SNOWMOBILE CYLINDER
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Yamaha OEM 600 NON PV Cylinder NICE Vmax Venture SXR Mountain Max Triple
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93 POLARIS INDY 600 XLT TRIPLE 92 94 95 XC STORM CYLINDER HEAD HEADS TOP COVER
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93 POLARIS INDY 600 XLT TRIPLE 92 94 XC STORM CYLINDERS PISTONS MONO BLOCK
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1992 POLARIS INDY 650 TRIPLE CYLINDER HEAD LEFT
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1992 POLARIS INDY 650 TRIPLE CYLINDER HEAD CENTER
1992 POLARIS INDY 650 TRIPLE CYLINDER HEAD CENTER
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USED 1994 Polaris XLT XCR Engine Cases Crank CRANKCASE Snowmobile TRIPLE MOTOR
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USED Polaris Indy 650 EC65PL CYLINDER Assembly SNOWMOBILE TRIPLE ENGINE PISTON
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Arctic Cat Thundercat 900 Triple Right Cylinder Head
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