The variety of shielding gases used in arc welding can be a confusing topic. However, the use of an external shielding gas is a necessary component for some processes, as it is a requirement for surrounding and protecting the arc and molten weld metal from contamination by the atmosphere.
Consonant Digraphs. Second Grade. Spelling/Phonics. Consonant Digraphs Consonant digraphs are two (or three) letters that come together to make one sound. The difference between blends and digraphs is that blends are two letters that make two sounds and digraphs make one sound.onsonant Digraphs. Second Grade. Spelling/Phonics. Consonant Digraphs Consonant digraphs are two (or three) letters that come together to make one sound. The difference between blends and digraphs is that blends are two letters that make two sounds and digraphs make one sound.
Is the letter Y a vowel or a consonant? The letter Y can be regarded as both a vowel and a consonant. In terms of sound, a vowel is 'a speech sound which is produced by comparatively open configuration of the vocal tract, with vibration of the vocal cords but without audible friction...', while a consonant is 'a basic speech sound in which the breath is at least partly obstructed'.