OECP Test Questions with
All Correct Answers
When taking a side strain on a boom, what concerns the operator most?
A. No concern
B. Boom damage
C. Tipping
D. Boom tip damage - Answer- B. Boom damage
The primary purpose for a rooster sheave or auxiliary boom point sheave is to:
A. Separate the hoist lines
B. Add height to the boom
C. Increase the load radius
D. Decrease the load radius - Answer- A. Separate the hoist lines
Eccentric main boom tip reeving causes:
A. increase wear in bridal
B. increase wire rope wear
C. twisting of the boom
D. increased jib capacity - Answer- C. twisting of the boom
When should a tagline be used?
A. When rotation of lead would be dangerous
B. When raining and load would be slippery
C. When only one signal person is required
D. Never - Answer- A. When rotation of lead would be dangerous
When operator arrives at the job site and the crane is already erected, how would the
operator check the main auxiliary hoist brakes?
A. Check pedals for the correct feel
B. Rely on the superintendent to verify the brakes are functioning properly
C. Make the lift and see what happens
D. Lift the load off the ground and apply the brake - Answer- D. Lift the load off the
ground and apply the brake
,When lifting loads from the water, the operator should be aware that:
A. The current can change and cause the crane to tip
B. The brakes on the crane could get wet and slip
C. A dynamic load can occur
D. The load will increase when you pick the load from the water - Answer- D. The load
will increase when you pick the load from the water
When a spinning load presents a danger, what should be done?
A. Keep the load close to the ground
B. Run load to the tip of boom
C. Tell everybody to stay clear
D. Use a tagline - Answer- D. Use a tag line
The crane is out of level, you release the swing brake, the boom swing downhill, your:
A. Boom angle stays the same
B. Boom angle increases
C. Load radius stays the same
D. Load radius increases - Answer- D. Load radius increases
On lattice boom cranes fitted with power load lowering, a heavy load should be lowered
by using the:
A. Power load-lowering feature and the foot brake
B. Foot brake and slipping the converter
C. Throttle of the engine
D. Power load-lowering feature only - Answer- A. Power load-lowering feature and the
foot brake
Abruptly stopping a rapid swing on a load-boom mobile crane will produce what major
effect?
A. Overheating the swing brake
B. Overturning the crane or collapsing the boom
C. Increased pressure on the crane's draw works
D. Rope vibration - Answer- B. Overturning the crane or collapsing the boom
When the boom handle is released to its center position, which action should be
expected?
A. The boom hoist safety pawl will be automatically disengaged
B. The boom hoist will be held stationary
C. The swing brake will be automatically applied
, D. The hoist drum will freewheel until the hoist brake is engaged. - Answer- B. The
boom hoist will be held stationary
What effect does having the tracks retracted have on a crawler crane with a long boom?
A. Decrease track wear
B. Decrease in capacity
C. Increase in capacity
D. Increase track wear - Answer- B. Decrease in capacity
When performing a pick and carry operation with a crane on an incline, the load should
be carried:
A. Uphill
B. Downhill
C. Both A and B are acceptable
D. Never Carry load on an incline - Answer- A. Uphill
When operating a mobile crane, the following conditions can reduce the capacity of the
crane:
A. Shock landing
B. Soft ground
C. Side loading
D. All of the above - Answer- D. All of the above
Two-blocking will not be caused by:
A. Booming down
B. Telescoping the boom out
C. Hoisting the load
D. Telescoping the boom in - Answer- D. Telescoping the boom in
Which boom configuration can cause the most hazardous boom side-loading condition?
A. Short boom with minimum radius
B. Long boom with minimum radius
C. Short boom at 45 degree angle
D. Long boom at 45 degree angle - Answer- B. Long boom with minimum radius
How does high wind affect the setup of a crane with a long boom?
A. Decreases load line capacity
B. Requires you to slip the swing brake
C. Introduces side load onto the boom
All Correct Answers
When taking a side strain on a boom, what concerns the operator most?
A. No concern
B. Boom damage
C. Tipping
D. Boom tip damage - Answer- B. Boom damage
The primary purpose for a rooster sheave or auxiliary boom point sheave is to:
A. Separate the hoist lines
B. Add height to the boom
C. Increase the load radius
D. Decrease the load radius - Answer- A. Separate the hoist lines
Eccentric main boom tip reeving causes:
A. increase wear in bridal
B. increase wire rope wear
C. twisting of the boom
D. increased jib capacity - Answer- C. twisting of the boom
When should a tagline be used?
A. When rotation of lead would be dangerous
B. When raining and load would be slippery
C. When only one signal person is required
D. Never - Answer- A. When rotation of lead would be dangerous
When operator arrives at the job site and the crane is already erected, how would the
operator check the main auxiliary hoist brakes?
A. Check pedals for the correct feel
B. Rely on the superintendent to verify the brakes are functioning properly
C. Make the lift and see what happens
D. Lift the load off the ground and apply the brake - Answer- D. Lift the load off the
ground and apply the brake
,When lifting loads from the water, the operator should be aware that:
A. The current can change and cause the crane to tip
B. The brakes on the crane could get wet and slip
C. A dynamic load can occur
D. The load will increase when you pick the load from the water - Answer- D. The load
will increase when you pick the load from the water
When a spinning load presents a danger, what should be done?
A. Keep the load close to the ground
B. Run load to the tip of boom
C. Tell everybody to stay clear
D. Use a tagline - Answer- D. Use a tag line
The crane is out of level, you release the swing brake, the boom swing downhill, your:
A. Boom angle stays the same
B. Boom angle increases
C. Load radius stays the same
D. Load radius increases - Answer- D. Load radius increases
On lattice boom cranes fitted with power load lowering, a heavy load should be lowered
by using the:
A. Power load-lowering feature and the foot brake
B. Foot brake and slipping the converter
C. Throttle of the engine
D. Power load-lowering feature only - Answer- A. Power load-lowering feature and the
foot brake
Abruptly stopping a rapid swing on a load-boom mobile crane will produce what major
effect?
A. Overheating the swing brake
B. Overturning the crane or collapsing the boom
C. Increased pressure on the crane's draw works
D. Rope vibration - Answer- B. Overturning the crane or collapsing the boom
When the boom handle is released to its center position, which action should be
expected?
A. The boom hoist safety pawl will be automatically disengaged
B. The boom hoist will be held stationary
C. The swing brake will be automatically applied
, D. The hoist drum will freewheel until the hoist brake is engaged. - Answer- B. The
boom hoist will be held stationary
What effect does having the tracks retracted have on a crawler crane with a long boom?
A. Decrease track wear
B. Decrease in capacity
C. Increase in capacity
D. Increase track wear - Answer- B. Decrease in capacity
When performing a pick and carry operation with a crane on an incline, the load should
be carried:
A. Uphill
B. Downhill
C. Both A and B are acceptable
D. Never Carry load on an incline - Answer- A. Uphill
When operating a mobile crane, the following conditions can reduce the capacity of the
crane:
A. Shock landing
B. Soft ground
C. Side loading
D. All of the above - Answer- D. All of the above
Two-blocking will not be caused by:
A. Booming down
B. Telescoping the boom out
C. Hoisting the load
D. Telescoping the boom in - Answer- D. Telescoping the boom in
Which boom configuration can cause the most hazardous boom side-loading condition?
A. Short boom with minimum radius
B. Long boom with minimum radius
C. Short boom at 45 degree angle
D. Long boom at 45 degree angle - Answer- B. Long boom with minimum radius
How does high wind affect the setup of a crane with a long boom?
A. Decreases load line capacity
B. Requires you to slip the swing brake
C. Introduces side load onto the boom
