Millwright stuvia 2023 - Study guides, Class notes & Summaries

1. When the downward force at C2 is 100 lb and D2 = 2.5 inches, the upward force at C1 will be ________lb if D1 = 4 inches. A. 160 B. 256 C. 384 D. 240 - ANSWER-A. 160

Millwright. Bearings 2023/2024 Questions and Answers Complete @ STUVATE –STUVIA USA What are the principle parts of a friction bearing housing? - Base, Base bolt slots, cap and cap bolt holes. What are friction bearing housings made from adn what factors influence the choice of housing? - Cast Iron, Cast Steel, Fabricated Steel. Choice depends on the Load, The Rotational Speed, the Direction of Pull and the Support Design How are friction bearing dimensions expressed? - In a fraction o...

1. When the downward force at C2 is 100 lb and D2 = 2.5 inches, the upward force at C1 will be ________lb if D1 = 4 inches. A. 160 B. 256 C. 384 D. 240 - ANSWER-A. 160 x/12.56 sq in = 100 lbs/7.85 sq in x = (100lbs/7.85 sq in)12.56 x = 160 lbs 2. Add the following decimals and express the answer to three decimal places. 0.4789 + 3.125 + 9.656 A. 13.26 B. 13.3 C. 13.259 D. 13.2599 - ANSWER-C. 13.259 3. What are common materials used as electrical conductors? A. Silver,...

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 ...

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 ...

What are the purposes of couplings? 13:1 - ANSWERSCouplings are used to join two shafts together & transmit power. What are the 4 main types of couplings? 13:1 - ANSWERS-rigid couplings -flexible couplings -universal joints (u-joints) -centrifugal What are the operative limits of rigid couplings? 13:2 - ANSWERS-misalignment must be less than bearing clearance -cannot have angular misalignment -thermal expansion is not present during operation. What are the 4 main types of rigid cou...

You should operate a heavy-duty roller chain at about the same load capacity as that of a __________________. - ANSWERSstandard roller chain How does the life of a sintered bushing chain compare to the life of a standard roller chain? - ANSWERSlasts five times longer What type of chain offers the highest power capacity for its size? - ANSWERSsilent What length of chain is required if the pitch is 12 inch, the small sprocket has 20 teeth, the large sprocket has 40 teeth and the centre di...

Two kinds of flat bearings differ from there housings they are A. Solid end of friction B. Tight and tapered C. Scored and roller D. Solid and split - ANSWER D. Solid and split **The choice of bearing tens of the load rotational speed direction of Pull and support design solid bearings and split bearings are fiction bearings You can remove bearing cups from a housing using a cup puller (inside puller) provided that? a. it is a tapered roller bearing b. it is an anto froction bearing ...

On a pedestal grinder, the gap between the grinding wheel and work rest should not exceed: - ANSWER 1/8 inch The kind of abrasive material used in grinding wheels for general purpose applications is: - ANSWER aluminum oxide A blotter is used on a grinding wheel to: - ANSWER protect the flanges from the abrasize grit, display information about the wheel and compensate for the uneven surfaces on the wheel Flanges should at least be: - ANSWER 1/3 the diameter of the wheel The best wheel...

Which of the following best describes a free flow control valve? A) It is the simplest form of directional control allowing flow in one direction only B) They are used to prevent a load suspended by a cylinder from free fall C) They operate actuators at different times D) They make a humming sound when activated E) They control the rate of fluid flow in a hydraulic circuit - ANSWER E) They control the rate of fluid flow in a hydraulic circuit A lifter is a solid or hydraulic device that ...