2-46. Which  statement  about  the relative  bursting  pressure  for various sizes of tubing made of the same material is true? 1. It is different for each wall thickness  regardless  of  size 2. It is the same for all sizes having the same wall thickness 3. It is lower for small tubing than for larger tubing of the same  wall  thickness 4. It is higher for small tubing than for larger tubing of the same  wall  thickness 2-47. Which  of  the  following  metals  may be used to provide a strong, inexpensive  pipe  or  tubing capable  of  withstanding  high pressures  and  temperatures? 1. Steel 2. Copper 3. Stainless  steel 4. Aluminum 2-48. Which  of  the  following  basic requirements  must  be  considered in designing the lines and connectors of a fluid power system? 1. Inside surfaces that do not create  turbulent  fluid  flow 2. Sizes  sufficient  to  deliver adequate  quantities  of  fluid to all components 3. Strength  to  withstand pressure  surges  that  exceed the  system’  s  working  pressure 4. All of the above 2-49. Bends in piping serve to absorb vibration  and  to  compensate  for thermal  expansion  and contraction. 1. True 2. False 2-50. The  determining  factor  for  the radius of the bend to be made in a pipe is the pipe’s 1. length 2. wall  thickness 3. inside  diameter 4. outside  diameter 2-51. Coarse-toothed  hacksaw  blades  are preferred  for  cutting  tubing because they cut faster and are less liable to choke up with the chips. 1. True 2. False 2-52. Which  of  the  following  procedures should you follow when cutting a tube with a tube cutter? 1. Apply  continual  light pressure to the cutting wheel 2. Remove all burrs on the inside and outside of the tube 3. Remove  all  foreign  particles from the tube 4. All of the above 2-53. Which  of  the  following  statements is NOT correct for cutting tubing with a hacksaw? 1. A fine-tooth hacksaw of 48 teeth per inch could be used 2. When you clamp the tubing in a vice,    tighten the vice until the tubing is just starting to hold without collapsing 3. All hacksaw marks must be removed by filing 2-54. What parts of the hand tube bender are used to obtain the correct bend radius and the desired bend angle on tubing? 1. The clip and the slide bar 2. The radius block and the slide bar 3. The radius block and the clip 4. The forming bar and the slide bar 2-55. Which  of  the  following  statements is NOT true concerning the flaring of a tube? 1. The flare must be large enough to seat properly against  the  fitting 2. The correct diameter of the flare is obtained by ensuring that the tube is flush with the top face of the die block 3. The flare must be small enough to allow the threads of the flare nut to slide over it 14