1-20. What change, if any, will occur in the volume and weight of a substance  if  its  temperature changes? 1. Both its volume and weight will  change 2. Both its volume and weight will  be  unaffected 3. Its volume will change, but its weight will remain constant 4. Its weight will change, but its volume will remain constant 1-21. Which  statement  about  specific gravity is false? 1. The density of a solid can be determined  by  multiplying  its specific  gravity  times  the density  of  water 2. Specific  gravity  can  also  be described  as  specific  weight or  specific  density 3. Specific  gravity  of  a substance  should  be  measured at  a  standardized  temperature and  pressure 4. Specific  gravity  will  vary with the size of the sample being  tested 1-22. How can the specific gravity of a liquid or solid be expressed? 1. As a ratio between the weight of the substance and the density of a volume of water 2. As a ratio between the weight of the substance and the weight of an equal volume of water 3. As the number that shows the density  of  the  substance  in the  metric  system 4. As in 2 and 3 above 1-23. What is the specific gravity of a liquid which weighs 44 pounds per cubic foot at 4°C? 1. 0.440 2. 0.624 3. 0.705 4. 0.789 1-24. 1-25. 1-26. 1-27. 1-28. What is the density of a solid that has a specific gravity of 2.5? 1. 156 pounds per cubic foot 2. 250 pounds per cubic foot 3. 312 pounds per cubic foot 4. 482 pounds per cubic foot What is the specific gravity of a solid  object  which  weighs  49.92 pounds per cubic foot? 1. 0.789 2. 0.8 3. 2.7 4. 0.9 A device used for measuring the specific gravity of a liquid is known as a 1. hydrography 2. hydrometer 3. hydrostat 4. hydroscope Learning  Objective: Recognize the  principles  and  equations involved  with  the  transmission  of forces,    and  solve  related problems. The  pressure  of  force  exerted  on the end of a rigid metal bar is applied  equally  and  undiminished to all surfaces of the bar. 1. True 2. False The head,   or pressure due to the weight of a fluid, depends on the density of the fluid and the 1. area of the bottom surface of the  container 2. total volume of the fluid 3. vertical  height  of  the  fluid 4. geometric shape of the container 3