Rivets are generally specified by the____________________?

Related Mcqs:

1. A pipe is generally made of circular cross-section, because a circular cross-section has the____________________?

   A. Higher structural strength
   B. Lowest surface area requirement for a given volume
   C. Both A. & B.
   D. None of these

2. Tube wall thickness depends on the corrosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than _____________ mm outside diameter is generally not recommended for fouling fluids ?

   A. 16
   B. 19
   C. 28
   D. 38

3. In a _____________ riveted joint, the number of rivets decreases from the innermost row to the outermost row?

   A. Chain
   B. Diamond
   C. Zig-zag
   D. None of these

4. A riveted joint does not fail by _____________________ of rivets?

   A. Tearing
   B. Shearing
   C. Tearing of the plate across a row
   D. None of these

5. In a ______________ riveted joint, the rivets in the various rows are opposite to each other?

   A. Zig-zag
   B. Chain
   C. Diamond
   D. None of these

6. Stage efficiency for packed tower varies with the____________________?

   A. Type & size of packing
   B. Fluid rates and fluid properties
   C. Operating pressure and column diameter
   D. All A., B. and C.

7. The stress developed in a material without any permanent set is called the____________________?

   A. Ultimate stress
   B. Yield stress
   C. Elastic limit
   D. Breaking stress

8. The wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?

   A. Axial tensile stress in the pipe
   B. Forces exerted by static and dynamic action at bends
   C. Circumferential pipe-wall tension
   D. Temperature stresses

9. Floating head heat exchangers are used for the____________________?

   A. Heat transfer between corrosive fluids
   B. Cases where temperature difference between the shell and the tubes is more (>50°C)
   C. Co-current heat transfer systems
   D. Counter-current heat transfer systems

10. Optimum economic pipe diameter for fluid flow is determined by the____________________?

    A. Viscosity of the fluid
    B. Density of the fluid
    C. Total cost considerations (pumping cost plus fixed cost of the pipe)
    D. None of these