Nccco core correct stuvia - Study guides, Class notes & Summaries

Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWER there is no weight of the crane bearing on any tires Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - ANSWER Keeping 90 degree angle between cylinder rod and pad What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - ANSWER Separate the boom hoist lines How many randomly broken wires in a lay length must there be on a mo...

The term "Superstructure or Upper works" refers to the area of the crane: - ANSWER Above the swing circle A crane must be level within _______% for the load chart ratings to be valid? - ANSWER 1% On what principle is crane stability based? - ANSWER Leverage What would be the effect of moving the tipping axis closer to the cranes center of gravity? - ANSWER Reduced stability Which of the following matches the appropriate load chart to a particular crane? - ANSWER Serial number Wh...

Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWERthere is no weight of the crane bearing on any tires Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - ANSWERKeeping 90 degree angle between cylinder rod and pad What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - ANSWERSeparate the boom hoist lines How many randomly broken wires in a lay length must there be on a mobil...

TT 345-750V - CORRECT ANSWER-16ft TT TA 500-750V - CORRECT ANSWER-35ft TA TT 50-345V - CORRECT ANSWER-10ft TT TA 750-1000V - CORRECT ANSWER-45ft TA TA 50-200V - CORRECT ANSWER-15ft TA TA 350-500V - CORRECT ANSWER-25ft TA TT 750-1000 - CORRECT ANSWER-20ft TT TT .01-.75 - CORRECT ANSWER-4ft TT TA 200-350V - CORRECT ANSWER-20ft TA TA up to 50V - CORRECT ANSWER-10ft TA TT .75-50V - CORRECT ANSWER-6ft TT How many electrocution hazard warnings must be displayed - CORRE...

Timber or steel - CORRECT ANSWER-These materials should be used when setting up on soft surfaces such as soft ground, asphalt or backfilled material Over the corner - CORRECT ANSWER-On crawler cranes, which boom position creates the greatest ground pressure Blocking - CORRECT ANSWER-Allows the weight of the crane and load to be distributed over a greater surface area. Should be used under outrigger floats at all times. 3 - CORRECT ANSWER-Blocking should be at least how many times the su...

NCCCO Rigger 1 Study Questions with Correct Answers 1. A wire rope that is a 6x19 classification could have how many wires per strand? - ANSWER-15 through 26 wires per strand 2. How often should a synthetic web sling be inspected? - ANSWER-Each day before use 3. Which considerations should be given to suspend lifting operations with a mobile crane? - ANSWER-Winds in excess of 35 mph 4. What is the term that best describes surface wear on a wire rope sling to rubbing or sliding? - ANSWER-...