Chain drives - level 2 millwright Exam Questions and Answers 100% Pass

Chain drives - level 2 millwright Exam Questions and Answers 100% Pass Name four types of chain links - ANSWER -Roller Pin Connecting Offset _______ links have two bushings that are press fit into two roller link plates and links have two rollers that spin freely on the bushings - ANSWER -Roller A connecting link has what parts? - ANSWER -2 pins press fitted and riveted permanently to a link plate A link plate that can be press or slip fit on the pins Securing device (spring clip, cotter pin, spring pin, etc) Another name for roller link plates - ANSWER -Side plates ________ links are oversized and have lubricated bushings - ANSWER -Rollerless ______ links have two link plates which hold the pins and roller links that pivot on the pins - ANSWER -Pin ______ chain is an assembly of alternating roller links and pin links - ANSWER -Standard roller What is the purpose of a connecting link? - ANSWER -Joins a roller chain, making it endless 2 | P a g e Created by ©EmilyCharlene 2025. All rights reserved. What is a slip fit connector? - ANSWER -Their side plates are secured by pins or clips. Used for efficient chain removal What are press fit connectors? - ANSWER -Riveted for permanent connections and heavy applications. _________ of ________ clips face direction of travel - ANSWER -Head end and spring _______ links are used when it's not possible to have a standard connecting link to have an even number of pitches - ANSWER -Offset (aka half link) _______ links lengthen chains one pitch at a time - ANSWER -One-pitch offset _______ links are designed for heavy applications. The pin is riveted making a permanent connection. - ANSWER -Two-pitch offset All Roller chain dimensions are related to the pitch in what way? - ANSWER -They're all fractional multiples of the pitch What is the pitch in roller chain? - ANSWER -Distance between centres of adjacent joint members What is the chain width in roller chain? - ANSWER -The minimum distance between link plates and it's 5/8 of the pitch What is roller diameter in roller chain? - ANSWER -Outside diameter of roller and 5/8 of the pitch (0.625 x pitch) How do you find the pin diameter roller chain? - ANSWER -Pin is 5/16 of the pitch. (0.3125 x pitch) How thick is the link plate in roller chain? - ANSWER -1/8 of the pitch. ANSI roller chain code numbers have two parts? What are they - ANSWER -Left side = pitch Right side = chain type 3 | P a g e Created by ©EmilyCharlene 2025. All rights reserved. In roller chain code numbers, the right side specifies chain type. What are those numbers and what chain type do they indicate? - ANSWER -0 - regular proportion. (Aka usual) 1 - lightweight chain 5 - rollerless bushing chain In roller chain code numbers, the left side indicates pitch in 1/8" increments. What would an 80 chain's pitch be. - ANSWER -1 inch. What is the pitch of a 41 roller chain? - ANSWER -1/2" What is the pitch of 100 chain - ANSWER -10/8 which = 1 1/4 _________ chains transfer maximum power with the smallest pitch size which gives smooth operation - ANSWER -Multiple strand What does the letter H signify in roller chain code? - ANSWER -Heavy series What does a hyphenated number following the chain number in roller chain code signify? - ANSWER -Number of strands (100-2 means double strand) A multiple strand chain has a power delivery rating ________ than the number of strands 1) slightly less 2) equal 3) slightly more 4) exponentially less - ANSWER -Slightly less 4 | P a g e Created by ©EmilyCharlene 2025. All rights reserved. Why do multiple chain drives require accurate alignment? - ANSWER -Keep load evenly distributed over each strand _________ drive chains have twice the pitch than standard chain and are used when speeds are low and have relatively light loads - ANSWER -Double pitch (aka extended pitch) ________ chain has toothed link plates on pin connectors. They pass over the sprocket like s timing belt - ANSWER -Silent ______ chain has no sliding action which creates a smooth and quiet operation. Used on high speed drives - ANSWER -Silent Silent chain sprockets look like _______ - ANSWER -Gears Flanged, centre guide plate, side guide plate are examples of __________ sprockets - ANSWER -Silent chain What are the 4 sprocket types? - ANSWER -A, B, C, and D Type ____ sprockets (aka plain or disk), are mounted on hubs by being bolted or welded to them 1) B 2) A 3) D 4) C - ANSWER -2) A