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A unique feature of the International Fujita scale compared to the Fujita or Enhanced Fujita scale is a new damage indicator based on measured wind speeds. For the IF scale , only wind speeds measured at or below 10 metres (11 yd) can be used to determine a rating.
In Canada, a severe thunderstorm is defined as having wind gusts of greater than 90 km/h (56 mph), hail with a diameter of greater than two centimetres (0.79 in), rainfall rates of greater than 50 millimetres (2.0 in) in one hour or greater than 75 millimetres (3.0 in) in three hours, or tornadoes. [14]
The Xenia, Ohio, F5 tornado of April 3, 1974.This was one of two tornadoes to receive a preliminary rating of F6, which was downgraded later to a rating of F5. [1]This is a list of tornadoes which have been officially or unofficially labeled as F5, EF5, IF5, T10-T11, the highest possible ratings on the various tornado intensity scales.
The direct tension indicators shall conform to required chemical composition, compression load, and dimensional values." [ 5 ] Like other fastener components, DTIs are covered by the Fastener Quality Act of 1999 in section 3: Definitions (6), [ 6 ] where a DTI is described as "a load-indicating washer, that is through-hardened".
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system used to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).
1 (5 injuries) A few farms were leveled. This tornado moved on a track parallel to a far deadlier F5 tornado that devastated Grinell during the same outbreak. Grazulis: June 21: 1882 United States: Iowa: Primghar, Peterson: 5 (50 injuries) At least 50 buildings were destroyed on 20 farms and in the town of Primghar. Grazulis: June 25: 1882 ...
In metrology and the fields that it serves (such as manufacturing, machining, and engineering), total indicator reading (TIR), also known by the newer name full indicator movement (FIM), is the difference between the maximum and minimum measurements, that is, readings of an indicator, on the planar, cylindrical, or contoured surface of a part ...
Through 21 CFR 1040, the US Food and Drug Administration (FDA) regulates laser products entering commerce and requires all class IIIb and class IV lasers offered in commerce in the US to have five standard safety features: a key switch, a safety interlock dongle, a power indicator, an aperture shutter, and an emission delay (normally two to ...