CATEGORY 3 NON-CAB OPERATED CRANE SAFETY
EXAM AND PRACTICE EXAM NEWEST ACTUAL
EXAM COMPLETE 250 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
What may cause the bridge to skew - ANSWER Wheel slippage on one side only
because of a slippery track, or a heavy load suspended from one end of the bridge.
What is two-blocking and why is two-blocking dangerous? - ANSWER Two-blocking
occurs when the hook block comes into contact with the upper sheave block during
hoisting of the hook. It is dangerous because it could result in damage to the crane,
parting of the hoist lines, and dropping the load.
What is the formula for determining the area of a triangular shaped object? - ANSWER
Base x Height divided by 2
When is it permissible for an operator to leave the controls of a crane while a load is
suspended from the hook? - ANSWER The operator shall remain at the controls at all
times while a load is suspended from the hook.
Regardless of the method of communication used, all crane signals must be - ANSWER
Clear
What is the weight of a 24 square foot, 2 inch thick aluminum plate with a unit weight of
15 lbs. per square foot of material per inch of thickness? - ANSWER 720lbs
Synthetic web slings should NOT be used in areas where temperatures exceed 194
degrees Fahrenheit. - ANSWER True
Which of the following identifies the two categories of crane lifts? - ANSWER Complex
and Non-Complex
What is inching? - ANSWER Performing a motion very slowly, a little at a time
While performing a pre-use check, the operator must check the wire rope system for all
of the following except? - ANSWER Size and grade of wire rope
Crane operators at naval activities may be required to operate various types of cranes
for which they hold a license. Which of the following can best assure operator
proficiency and safety? - ANSWER Be familiarized by a qualified person before
operating the crane for the first time
, What is the minimum amount of rope that shall be on a grooved drum and a smooth
drum? - ANSWER 2 full wraps, 3 full wraps
Which of the following is used with a physical locking device placed at the energy
source? - ANSWER Lockout tag
Components that affect the safety and capability of the WHE by stopping or limiting the
operation when activated are - ANSWER Operational safety devices
When crane accidents happen, you must do all of the following except? - ANSWER
Continue to operate the crane until all lifts are completed
Components that provide protection for operation and maintenance personnel working
on or in the path of cranes. - ANSWER General Safety Devices
What signal may an operator obey from a person other than the designated signal
giver? - ANSWER Stop or Emergency Stop
Components that support the load and upon failure would cause dropping or
uncontrolled lowering of the load are - ANSWER Load bearing parts
What is meant by skewing? - ANSWER Skewing is where one end of the bridge gets
ahead of the other end frequently causing binding on the rails.
The expiration date that is of particular importance to crane operators is? - ANSWER
The certification expiration date of the crane
If an object has a volume of 200 cubic feet and the unit weight is 150 lbs. per cubic foot,
what is its weight? - ANSWER 30,000 lbs.
What should an operator do if he/she is not sure of the meaning of a signal? - ANSWER
Stop operation until the meaning of the signal is understood.
Taking the slack out of rigging and starting to move a load or empty hook should be
performed in first hoisting position or at the slowest possible speed. - ANSWER True
Components that control, restrain, or position the load and upon failure would cause
dropping, shifting, or uncontrolled movement of the loads are - ANSWER Load
controlling parts
Which tag alerts operators to special instructions for operating the equipment? -
ANSWER Caution Tag
EXAM AND PRACTICE EXAM NEWEST ACTUAL
EXAM COMPLETE 250 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
What may cause the bridge to skew - ANSWER Wheel slippage on one side only
because of a slippery track, or a heavy load suspended from one end of the bridge.
What is two-blocking and why is two-blocking dangerous? - ANSWER Two-blocking
occurs when the hook block comes into contact with the upper sheave block during
hoisting of the hook. It is dangerous because it could result in damage to the crane,
parting of the hoist lines, and dropping the load.
What is the formula for determining the area of a triangular shaped object? - ANSWER
Base x Height divided by 2
When is it permissible for an operator to leave the controls of a crane while a load is
suspended from the hook? - ANSWER The operator shall remain at the controls at all
times while a load is suspended from the hook.
Regardless of the method of communication used, all crane signals must be - ANSWER
Clear
What is the weight of a 24 square foot, 2 inch thick aluminum plate with a unit weight of
15 lbs. per square foot of material per inch of thickness? - ANSWER 720lbs
Synthetic web slings should NOT be used in areas where temperatures exceed 194
degrees Fahrenheit. - ANSWER True
Which of the following identifies the two categories of crane lifts? - ANSWER Complex
and Non-Complex
What is inching? - ANSWER Performing a motion very slowly, a little at a time
While performing a pre-use check, the operator must check the wire rope system for all
of the following except? - ANSWER Size and grade of wire rope
Crane operators at naval activities may be required to operate various types of cranes
for which they hold a license. Which of the following can best assure operator
proficiency and safety? - ANSWER Be familiarized by a qualified person before
operating the crane for the first time
, What is the minimum amount of rope that shall be on a grooved drum and a smooth
drum? - ANSWER 2 full wraps, 3 full wraps
Which of the following is used with a physical locking device placed at the energy
source? - ANSWER Lockout tag
Components that affect the safety and capability of the WHE by stopping or limiting the
operation when activated are - ANSWER Operational safety devices
When crane accidents happen, you must do all of the following except? - ANSWER
Continue to operate the crane until all lifts are completed
Components that provide protection for operation and maintenance personnel working
on or in the path of cranes. - ANSWER General Safety Devices
What signal may an operator obey from a person other than the designated signal
giver? - ANSWER Stop or Emergency Stop
Components that support the load and upon failure would cause dropping or
uncontrolled lowering of the load are - ANSWER Load bearing parts
What is meant by skewing? - ANSWER Skewing is where one end of the bridge gets
ahead of the other end frequently causing binding on the rails.
The expiration date that is of particular importance to crane operators is? - ANSWER
The certification expiration date of the crane
If an object has a volume of 200 cubic feet and the unit weight is 150 lbs. per cubic foot,
what is its weight? - ANSWER 30,000 lbs.
What should an operator do if he/she is not sure of the meaning of a signal? - ANSWER
Stop operation until the meaning of the signal is understood.
Taking the slack out of rigging and starting to move a load or empty hook should be
performed in first hoisting position or at the slowest possible speed. - ANSWER True
Components that control, restrain, or position the load and upon failure would cause
dropping, shifting, or uncontrolled movement of the loads are - ANSWER Load
controlling parts
Which tag alerts operators to special instructions for operating the equipment? -
ANSWER Caution Tag
