Mobile crane course, SLTC section 1-4 Exam Questions with Complete Solutions
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Course
Nccer mobile crane
Institution
Nccer Mobile Crane
Mobile cranes are governed by standards from two organizations, what are they ? - Answer-OSHA (CFR 1910.180 CFR 1926.1400) AND ASME (B30.5)
_______ must always be the first concern of the operator - Answer-Safety
ASME standards B30.5 describe several positions related to crane operations: - A...
Mobile crane course, SLTC section 1-4
Exam Questions with Complete
Solutions
Mobile cranes are governed by standards from two organizations, what are they ? -
Answer-OSHA (CFR 1910.180 CFR 1926.1400) AND ASME (B30.5)
_______ must always be the first concern of the operator - Answer-Safety
ASME standards B30.5 describe several positions related to crane operations: -
Answer-Lift director- directly over work of crane and rigging crew, only one who can
start a lift after it has been stopped (informs operator of load weight, movement, and
placement)
Crane operator- controls operation of crane, verifies crane lifting capacity
the ______ should ensure that the crane is leveled so that the crane will remain level
throughout the lift and the area around there is properly barricaded. - Answer-operator
the mobile crane operator certification program offered by NCCER has been accredited
by the American National Standards Institute (ANSI)
true or false - Answer-true
Per the OSHA requirements, a cranes operators certification is valid for? - Answer-5
years
the four crane categories are ? - Answer-industrial/all purposes, lattice boom, telescopic
boom, and boom truck
three basic types of cranes ? - Answer-mobile cranes, tower cranes, and overhead
cranes
the distinct feature of mobile cranes is that they are equipped with a means of
_________ ? - Answer-propulsion or travel
the energy industry uses mobile cranes to build and maintain what ? - Answer-
generational plants, transmissions tower, pipelines, and oil rigs.
two most significant distinctions between mobile cranes are ? - Answer-how they travel
from one place to another and the type of boom equipped
crawler cranes are so named because they move slowly on tracks that provide superior
_______ and ______ - Answer-traction and stability
, the track assemblies on a crawler cranes are called ? - Answer-crawler frames or tread
members
the lifting and rotating assembly on a crawler crane is called ? - Answer-upper works
note: the base of a crawler crane should not be called a carrier. only wheeled crane
bases are called ? - Answer-carriers
wheeled truck cranes is driven from and operated from the same cab ?
true or false - Answer-true
what are the two types of cabs in wheeled truck cranes ? - Answer-fixed and swinging
cab
_______ are designed to provide stability and a means to the level crane. lift capacity
and safety are both increased a result - Answer-outriggers
telescopic booms - hydraulic boom sections should be extended by the what? - Answer-
per manufactures specifications
the base section is the part the extends
true or false - Answer-false. Is raised up or down by one or more hydraulic actuators
cranes capacity changes dynamically as the boom length changes
true or false - Answer-true
lattice booms -besides lifting heavy loads to great heights, these cranes are also ideal
for applications with a higher _______ - Answer-duty cycle
Most load chart ratings require the crane to be? - Answer-properly leveled within 1%
when a crane is not perfectly level the following three problems can arise: - Answer-1.
the boom can be side loaded
2. the boom angle changes when the crane swings, which in turn changes the radius
3. the crane becomes more difficult to operate
quadrants of operation refer to a particular part of a cranes working circle. what are the
four ? - Answer-1. over the front
2. over the rear
3. over the side
4. 360 degree
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