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Overhead and gantry Cranes

Beschreibung

assessment review questions
Danielle Moyer
Quiz von Danielle Moyer, aktualisiert more than 1 year ago
Danielle Moyer
Erstellt von Danielle Moyer vor etwa 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Overhead cranes with more than one hoisting unit shall have....
Antworten
  • Its own daily inspection log on each hoist
  • Its rated load marked on it
  • Automatic rail clamps
  • A wind-indicating device

Frage 2

Frage
What is the purpose of the "E' (emergency) stop on an overhead crane?
Antworten
  • Removes power to hoists only
  • removes power to entire bridge
  • removes power to trolley only
  • removes power to entire crane

Frage 3

Frage
how often does OSHA require a wire rope inspection?
Antworten
  • once a shift
  • once a week
  • once a month
  • once a quarter

Frage 4

Frage
Most loads should be rigged to within how many degrees of level?
Antworten
  • Two
  • Three
  • Four
  • FIve

Frage 5

Frage
According to ASME B30.2, what is the safety factor for rigging?
Antworten
  • 3 to 1
  • 4 to 1
  • 5 to 1
  • 6 to 1

Frage 6

Frage
According to OSHA frequent inspections shall be performed
Antworten
  • monthly to annually
  • daily to monthly
  • hourly to daily
  • daily to weekly

Frage 7

Frage
According to ASME B 30.2 a frequent inspection must be performed by a
Antworten
  • competent person
  • designated person
  • qualified person
  • authorized person

Frage 8

Frage
According to ASME B30.2, the maximum twist of the hook can't exceed ?
Antworten
  • 25 degrees
  • 10 degrees
  • 15 degrees
  • 20 degrees

Frage 9

Frage
When inspecting electrical contacts, what are the signs they are bad?
Antworten
  • pitted or burned
  • discolored
  • springs are taut
  • makes sparks

Frage 10

Frage
According to ASME B30.2, what type of fire extinguisher is required for overhead cranes?
Antworten
  • 5 BC
  • 10 BC
  • 5 C
  • 10 A

Frage 11

Frage
Before leaving an overhead crane unattended, attached loads should be ?
Antworten
  • raised to the upper limit
  • raised just above the floor
  • lowered to the floor
  • unhooked from crane

Frage 12

Frage
Before using your hand to steady any load, you should?
Antworten
  • follow company policy
  • wear approved gloves
  • follow the foreman's direction
  • wear approved hardhat

Frage 13

Frage
According to OSHA, the rated capacity of all overhead cranes shall be
Antworten
  • clearly marked on the side of the crane
  • filed in supervisors office
  • clearly marked on shipping papers
  • filed in crane owners office

Frage 14

Frage
When attaching spreaders to any load, you must keep in mind that,
Antworten
  • the higher the spreader angle the greater the tension
  • the lower the spreader angle the lesser the tension
  • the higher the spreader angle the tension will remain the same
  • the lower the spreader angle the greater the tension

Frage 15

Frage
By order of hitch strength, which is correct?
Antworten
  • choker, basket, vertical
  • basket, choker, vertical
  • basket, vertical, choker
  • vertical, basket, choker

Frage 16

Frage
According to OSHA, the maximum hook throat opening must not exceed
Antworten
  • 5% of its original size
  • 10% of its original size
  • 15% of its original size
  • 20% of its original size

Frage 17

Frage
According to OSHA, how many wraps must be left on a hoist drum of an overhead crane with the hook at its lowest position?
Antworten
  • 1 wrap
  • 2 wraps
  • 3 wraps
  • 4 wraps

Frage 18

Frage
The upper limit switch of all overhead cranes shall be tested every
Antworten
  • shift
  • week
  • month
  • year

Frage 19

Frage
Vertical movement of an overhead crane is controlled by the
Antworten
  • trolley controller
  • hoist controller
  • bridge controller
  • travel controller

Frage 20

Frage
A swinging load should be controlled by the ?
Antworten
  • bridge and trolley controller
  • trolley and hoist controller
  • bridge and hoist controller
  • limit switch and hoist controller

Frage 21

Frage
What should be the first step in a daily inspection of an overhead crane?
Antworten
  • check the catwalk area
  • check the main switch
  • check the crane cab
  • check the controller position

Frage 22

Frage
What should be done with an unbalanced load?
Antworten
  • lower load to floor
  • sound safety device
  • increase operating speed
  • reduce operating speed

Frage 23

Frage
When making a lift, where should the load block be positioned?
Antworten
  • horizontal to the load attachment points
  • horizontal to the center of gravity
  • vertically over the load's center of gravity
  • vertically over the load

Frage 24

Frage
When energizing the crane, the controller should be in what position?
Antworten
  • hoisting
  • lowering
  • trolley
  • neutral

Frage 25

Frage
According to A.S.M.E., warning signals shall be given when
Antworten
  • equipment is in the area
  • stopping the movement
  • area is not clear
  • starting and during movement

Frage 26

Frage
According to A.S.M.E. B30.1, an overhead crane equipped with a lower limit device can have how many wraps left on the drum at its lowest point
Antworten
  • One
  • Two
  • Three
  • Four

Frage 27

Frage
According to OSHA, the proper time to check the hoist brake is
Antworten
  • before making a lift
  • during an inspection
  • during the first lift
  • lowering the first lift

Frage 28

Frage
In the event of an emergency, who may give the stop signal?
Antworten
  • foreman
  • supervisor
  • anyone
  • safety officer

Frage 29

Frage
According to ASME B30.2, before lifting a load the hoist ropes will be free of kinks and
Antworten
  • marked
  • rewound on drum
  • untwisted
  • tagged with capacity rating

Frage 30

Frage
The purpose of the upper limit switch is to
Antworten
  • limit bridge travel
  • limit trolley travel
  • limit hoist travel
  • limit upper span

Frage 31

Frage
According to OSHA, the operator shall not hoist loads above
Antworten
  • open areas
  • personnel
  • equipment
  • walkways

Frage 32

Frage
Where should the hook block be positioned for shutdown?
Antworten
  • halfway between the upper and lower limit
  • near the lower limit
  • near the upper limit
  • halfway between the inner and outer limit

Frage 33

Frage
Whose responsibility is it to select the proper rigging equipment
Antworten
  • supervisor
  • plant manager
  • plant safety
  • operator

Frage 34

Frage
Before making a lift the operator must first determine
Antworten
  • placement of rigging
  • weight of load
  • placement of tag line
  • attachment points

Frage 35

Frage
a wire rope designated as 6 X 19 has
Antworten
  • 6 wires with 19 strands
  • 6 strands with 19 wires
  • 6 strands that are 19 inches long
  • 19 strands that are 6 inches long

Frage 36

Frage
What is the safe working load of a wire rope defined as ?
Antworten
  • breaking strength times safety factor
  • breaking strength divided by safety factor
  • breaking strength plus safety factor
  • breaking strength subtracted from safety factor

Frage 37

Frage
The vertical movement of an overhead crane is controlled by the
Antworten
  • trolley controller
  • hoist controller
  • hoist and trolley controllers
  • hoist and bridge controllers

Frage 38

Frage
swinging loads can be controlled by the use of the
Antworten
  • bridge or trolley controls
  • bridge or hoist controls
  • trolley or hoist controls
  • limit switch and hoist controls

Frage 39

Frage
first step in daily inspection would be to check
Antworten
  • catwalk area and guardrails
  • crane cab and trolley brakes
  • controller position in neutral
  • main switch locked in off position

Frage 40

Frage
If the load does not balance properly after being raised what steps should be taken
Antworten
  • reduce speed
  • increase speed
  • the lift should continue
  • lower the load to the ground

Frage 41

Frage
When making a lift what position should the trolley be in?
Antworten
  • vertical to the load
  • horizontal to the load
  • depends on load location
  • makes no difference

Frage 42

Frage
What position should all controllers be in when energizing
Antworten
  • the raised postion
  • the lowered position
  • either raised or lowered
  • either neutral or off

Frage 43

Frage
ASME B.30.2 states that the minimum number of wraps one the hoisting drum should never be less than _______ unless a lower limit device is provided
Antworten
  • 1 wrap
  • 2 wraps
  • 3 wraps
  • 4 wraps

Frage 44

Frage
Before leaving a crane cab unattended any attached load shall be
Antworten
  • suspended
  • vertical
  • horizontal
  • landed

Frage 45

Frage
What is the purpose of the upper limit switch? (the only one required by OSHA)
Antworten
  • limit the bridge travel
  • limit the trolley travel
  • limit the bridge and trolley travel
  • limit the hoist travel

Frage 46

Frage
When any machinery or apparatus is found to be defective or inoperative on the crane the person discovering this condition should
Antworten
  • make necessary repairs
  • operate using caution
  • report it to the supervisor
  • red tag it

Frage 47

Frage
When loss of power occurs the crane operator should
Antworten
  • wait for power to be restored
  • install larger fuses
  • put controllers in the off position
  • attempt to locate the problem

Frage 48

Frage
A floor weight limitation is posted at 700 pounds per square foot maximum. Before lowering a load down onto this floor that is calculated at 900 pounds per square foot. What must be done?
Antworten
  • lower the load at slower rate
  • install cribbing to increase surface bearing area
  • install cribbing to decrease surface bearing area
  • install cribbing to maintain the same amount of surface bearing area

Frage 49

Frage
The term lay length when referring to wire rope if equal to
Antworten
  • twice the rope diameter
  • the length rope
  • the distance from one strand to the next strand
  • the distance it takes from one strand to make one complete revolution around the center core

Frage 50

Frage
According to OSHA rated capacity rigging charts will aid you when ?
Antworten
  • determining the weight of the load
  • determining the load's center of gravity
  • determining the rigging equipment manufacturer date
  • determining if the rigging equipment meets all criteria establish by law

Frage 51

Frage
If possible always try to keep horizontal sling angles
Antworten
  • less than 30 degrees
  • greater than 30 degrees
  • less than 60 degrees
  • greater than 60 degrees
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