Overhead cranes with more than one hoisting unit shall have....
Its own daily inspection log on each hoist
Its rated load marked on it
Automatic rail clamps
A wind-indicating device
What is the purpose of the "E' (emergency) stop on an overhead crane?
Removes power to hoists only
removes power to entire bridge
removes power to trolley only
removes power to entire crane
how often does OSHA require a wire rope inspection?
once a shift
once a week
once a month
once a quarter
Most loads should be rigged to within how many degrees of level?
Two
Three
Four
FIve
According to ASME B30.2, what is the safety factor for rigging?
3 to 1
4 to 1
5 to 1
6 to 1
According to OSHA frequent inspections shall be performed
monthly to annually
daily to monthly
hourly to daily
daily to weekly
According to ASME B 30.2 a frequent inspection must be performed by a
competent person
designated person
qualified person
authorized person
According to ASME B30.2, the maximum twist of the hook can't exceed ?
25 degrees
10 degrees
15 degrees
20 degrees
When inspecting electrical contacts, what are the signs they are bad?
pitted or burned
discolored
springs are taut
makes sparks
According to ASME B30.2, what type of fire extinguisher is required for overhead cranes?
5 BC
10 BC
5 C
10 A
Before leaving an overhead crane unattended, attached loads should be ?
raised to the upper limit
raised just above the floor
lowered to the floor
unhooked from crane
Before using your hand to steady any load, you should?
follow company policy
wear approved gloves
follow the foreman's direction
wear approved hardhat
According to OSHA, the rated capacity of all overhead cranes shall be
clearly marked on the side of the crane
filed in supervisors office
clearly marked on shipping papers
filed in crane owners office
When attaching spreaders to any load, you must keep in mind that,
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
By order of hitch strength, which is correct?
choker, basket, vertical
basket, choker, vertical
basket, vertical, choker
vertical, basket, choker
According to OSHA, the maximum hook throat opening must not exceed
5% of its original size
10% of its original size
15% of its original size
20% of its original size
According to OSHA, how many wraps must be left on a hoist drum of an overhead crane with the hook at its lowest position?
1 wrap
2 wraps
3 wraps
4 wraps
The upper limit switch of all overhead cranes shall be tested every
shift
week
month
year
Vertical movement of an overhead crane is controlled by the
trolley controller
hoist controller
bridge controller
travel controller
A swinging load should be controlled by the ?
bridge and trolley controller
trolley and hoist controller
bridge and hoist controller
limit switch and hoist controller
What should be the first step in a daily inspection of an overhead crane?
check the catwalk area
check the main switch
check the crane cab
check the controller position
What should be done with an unbalanced load?
lower load to floor
sound safety device
increase operating speed
reduce operating speed
When making a lift, where should the load block be positioned?
horizontal to the load attachment points
horizontal to the center of gravity
vertically over the load's center of gravity
vertically over the load
When energizing the crane, the controller should be in what position?
hoisting
lowering
trolley
neutral
According to A.S.M.E., warning signals shall be given when
equipment is in the area
stopping the movement
area is not clear
starting and during movement
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
One
According to OSHA, the proper time to check the hoist brake is
before making a lift
during an inspection
during the first lift
lowering the first lift
In the event of an emergency, who may give the stop signal?
foreman
supervisor
anyone
safety officer
According to ASME B30.2, before lifting a load the hoist ropes will be free of kinks and
marked
rewound on drum
untwisted
tagged with capacity rating
The purpose of the upper limit switch is to
limit bridge travel
limit trolley travel
limit hoist travel
limit upper span
According to OSHA, the operator shall not hoist loads above
open areas
personnel
equipment
walkways
Where should the hook block be positioned for shutdown?
halfway between the upper and lower limit
near the lower limit
near the upper limit
halfway between the inner and outer limit
Whose responsibility is it to select the proper rigging equipment
plant manager
plant safety
operator
Before making a lift the operator must first determine
placement of rigging
weight of load
placement of tag line
attachment points
a wire rope designated as 6 X 19 has
6 wires with 19 strands
6 strands with 19 wires
6 strands that are 19 inches long
19 strands that are 6 inches long
What is the safe working load of a wire rope defined as ?
breaking strength times safety factor
breaking strength divided by safety factor
breaking strength plus safety factor
breaking strength subtracted from safety factor
The vertical movement of an overhead crane is controlled by the
hoist and trolley controllers
hoist and bridge controllers
swinging loads can be controlled by the use of the
bridge or trolley controls
bridge or hoist controls
trolley or hoist controls
limit switch and hoist controls
first step in daily inspection would be to check
catwalk area and guardrails
crane cab and trolley brakes
controller position in neutral
main switch locked in off position
If the load does not balance properly after being raised what steps should be taken
reduce speed
increase speed
the lift should continue
lower the load to the ground
When making a lift what position should the trolley be in?
vertical to the load
horizontal to the load
depends on load location
makes no difference
What position should all controllers be in when energizing
the raised postion
the lowered position
either raised or lowered
either neutral or off
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
Before leaving a crane cab unattended any attached load shall be
suspended
vertical
horizontal
landed
What is the purpose of the upper limit switch? (the only one required by OSHA)
limit the bridge travel
limit the trolley travel
limit the bridge and trolley travel
limit the hoist travel
When any machinery or apparatus is found to be defective or inoperative on the crane the person discovering this condition should
make necessary repairs
operate using caution
report it to the supervisor
red tag it
When loss of power occurs the crane operator should
wait for power to be restored
install larger fuses
put controllers in the off position
attempt to locate the problem
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?
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
The term lay length when referring to wire rope if equal to
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
According to OSHA rated capacity rigging charts will aid you when ?
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
If possible always try to keep horizontal sling angles
less than 30 degrees
greater than 30 degrees
less than 60 degrees
greater than 60 degrees
