Millwright stuvia2023 - Study guides, Class notes & Summaries

Preventive maintenance - ANSWERSis the periodic inspection and maintenance of plant assets and equipment to uncover conditions that may to equipment failure or shortened life This measures the amount of contaminants per litre of fluid. a. ferromagnetic analysis b. total base number c. infrared tests d. gravimetric level analysis - ANSWERSd. gravimetric level analysis These tests indicate how much of the oil additives have been depleted a. ferromagnetic analysis b. total base number ...

Why are machines accurately aligned with each other? 23:1 - ANSWERSMachines are accurately aligned to work together smoothly. Thus increasing working life. How is the Primary unit positioned? 23:1 - ANSWERSThe primary unit is positioned according to reference lines (centre-lines, benchmarks etc) What are the other machines aligned with the Primary unit? 23:1 - ANSWERSDrive units; prime movers, transmission units etc. Are usually aligned with the primary unit. How is an alignment procedu...

The breaking strength of rope is a. force needed to pull rope b. force needed to tear rope c. force needed to break the rope d. force needed to stretch rope - ANSWER-c. force needed to break the rope What are spreader beams used for? a. calculate loads b. use on heavy lods c. support loads during lifts d. support long loads during lifts - ANSWER-d. support long loads during lifts What are equalizer beams used for? a. equalize the load on sling legs and to keep equal loads on dual ...

saddle - ANSWER-the safe working load of a rigging hook is accurate only when the load is suspended from the ______________ of the hook 15 - ANSWER-OSHA requires that a hook be replaced if the throat has opened _____ percent or more from it's original size. 40 - ANSWER-A hook that is point loaded could theoretically carry about ________ percent of the rated load. Shackels - ANSWER-Slings are attached together using ___________. 1 1/2 - ANSWER-tapped holes used with screwed-in eye bo...

Why are machines accurately aligned with each other? 23:1 - ANSWERSMachines are accurately aligned to work together smoothly. Thus increasing working life. How is the Primary unit positioned? 23:1 - ANSWERSThe primary unit is positioned according to reference lines (centre-lines, benchmarks etc) What are the other machines aligned with the Primary unit? 23:1 - ANSWERSDrive units; prime movers, transmission units etc. Are usually aligned with the primary unit. How is an alignment procedu...

The amount of power that a belt drive can transmit is directly related to the _________ of the belt on the pulley A. Tension B. Friction C. Grip D. Angle - ANSWERSC. Grip The grip of the belt on the pulley depends on A. Area, materials, tension B. Area, tension, angle C. Angle, materials, tension D. Angle, tension, materials - ANSWERSA. Area of contact Materials of belt and pulley Tension The area of contact between the belt and pulley surfaces depends on the belt width and ...

The resistance to movement between two surfaces that touch each other. - ANSWERSWhat is Friction? Using lubricants - ANSWERSWhat is the best wasy to mitigate friction? 1. Increased power consumption 2. It causes wear 3. It generates waste heat that can reduce life of components - ANSWERSWhat are the negative effects of friction? 1. Provides traction between the rolling elements and the raceways to ensure rolling instead of skidding 2. Promotes accurate tracking in bearing raceways 3...

What are the two main types of gravity roller conveyor? - ANSWERSStandard gravity roller conveyors and skate wheel conveyors What are three frame styles available for skate wheel conveyors? - ANSWERSPlain skids, skids with built-in guards, and wheel skid conveyors What are two frame styles available for roller conveyors? - ANSWERSHigh mounted and low mounted What are two categories of roller conveyors? - ANSWERSGravity roller conveyors and live roller conveyors What is the frame that...

What is the pressure of the Earth's atmosphere at sea level? - ANSWERS14.7 psi How is power defined? A. The rate or velocity at which power is done B. The rate or velocity at which work is created C. The speed of the velocity in a power system D. The rate or speed at which work is done. - ANSWERSD. The rate or speed at which work is done. What is a watt? A. watt is one newton lifted 1 m in one second. B. Power unit defined by its work C. Watt is 1 N lifted 1 cm in one second D. O...

The amount of power that a belt drive can transmit is directly related to the _________ of the belt on the pulley A. Tension B. Friction C. Grip D. Angle - ANSWERSC. Grip The grip of the belt on the pulley depends on A. Area, materials, tension B. Area, tension, angle C. Angle, materials, tension D. Angle, tension, materials - ANSWERSA. Area of contact Materials of belt and pulley Tension The area of contact between the belt and pulley surfaces depends on the belt width and ...