During belt-conveyor installation, what is the primary purpose of the take-up assembly?
Installation
Question · Easy
When installing a loading chute on a belt conveyor, material should enter the belt:
Which idlers are installed under the loading point to absorb impact and protect the belt?
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On a typical head-driven belt conveyor, the head pulley is the pulley that:
Skirtboards at a belt loading point are installed primarily to:
Before a new belt is installed and tensioned, terminal pulleys must be:
A screw (manual) take-up on a short belt conveyor is most commonly located at the:
Drive-pulley lagging is installed mainly to:
An inclined belt conveyor that can run backward under load if power is lost should be fitted with a:
A lagged head pulley is 18 in. in diameter and turns at 100 RPM. Approximate belt speed is:
Question · Medium
A troughed belt runs at 350 ft/min with a load cross-section of 0.40 ft². Material bulk density is 75 lb/ft³. Capacity is:
A gravity (counterweight) take-up is generally preferred over a screw take-up when the conveyor is:
A snub pulley is installed near the drive pulley primarily to:
Transition idlers are required between a troughed carrying run and a terminal pulley so that:
A slight crown on a pulley helps a flat belt track because the belt:
Compared with a mechanical fastener splice, a properly made vulcanized splice generally:
Carrying-idler spacing is typically closest together:
A fabric-belt conveyor has a 250 ft center-to-center length. If specified take-up travel is 1.6 percent of that length, how much travel should be provided?
When first training a newly installed belt, start adjustments:
Skirtboard sealing rubber should be installed so that it:
Conveyor support frames should be grouted and anchored only after the structure has been:
Most long troughed belt conveyors are driven at the head pulley because that arrangement:
A wing-type tail pulley is selected at many bulk loading ends because it:
After a hot-vulcanized splice is completed, the belt should be returned to service only after:
Effective belt tension Te is 1,650 lb and belt speed is 400 ft/min. Neglecting drive losses, required shaft horsepower is:
Question · Hard
A conveyor lifts 198 tons/hour a vertical distance of 50 ft. The horsepower required for lift alone is:
A 1,750 RPM motor drives an 18 in. head pulley through a 25:1 reducer. Approximate belt speed is:
For a given belt width and surcharge, increasing troughing idlers from 20° to 35° primarily:
To transmit a larger effective tension Te without raising slack-side tension T2, the installer can:
A 180 ft center-to-center fabric belt is specified with 2.0 percent take-up travel plus 2.0 ft extra for a future re-splice. Total take-up travel to provide is:
A troughed belt conveyor is the usual choice when the material is:
Systems And Equipment
A screw conveyor moves material by:
A bucket elevator is selected when the material must be:
A gravity roller conveyor will move a package only if:
A drag or flight conveyor moves bulk material by:
Return idlers on a belt conveyor are used to:
A centrifugal-discharge bucket elevator differs from a continuous-discharge elevator mainly because it:
Standard CEMA troughing-idler angles for three-roll carrying idlers are:
An en-masse conveyor moves material by:
Dilute-phase pneumatic conveying differs from dense-phase conveying in that dilute-phase:
An apron or pan conveyor is typically chosen when the material is:
A live-roller conveyor differs from a gravity roller conveyor because live rollers:
Self-aligning (training) idlers are intended to:
A cleated or chevron belt is specified when the conveyor must:
A belt tripper is equipment that:
Hanger bearings in a long screw conveyor are used to:
CEMA idler classes (B, C, D, E, F) are selected primarily from:
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