A. 1
B. 5
C. 15
D. 25
Related Mcqs:
- For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between ______________________ times the tank diameter?
A. 1 to 1.5
B. 2.5 to 3.5
C. 4 to 5
D. 6 to 8 - Hazards associated with the relief valve leakage for extremely hazardous material storage can be taken care of by providing___________________?
A. Rupture diaphragm
B. Dikes
C. Surge chamber
D. None of these - The safe height (h) to diameter D. ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than _________________?
A. 1
B. 2
C. 3
D. 3.5 - A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design____________________?
A. Only if the opening is on spherical vessel
B. Only if the opening is on a vertical cylindrical vessel
C. Only if the opening is on a horizontal cylindrical vessel
D. Irrespective of the shape of the vessel - Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about ______________ percent of the total thickness?
A. 1 to 5
B. 10 to 20
C. 30 to 40
D. 40 to 50 - In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?
A. Called tube pitch
B. Called tube clearance
C. Always less than the diameter of the tube
D. None of these - Shortest distance between two tubes is___________________?
A. Called tube pitch
B. Called tube clearance
C. More in case of triangular pitch as compared to square pitch of tube layout
D. None of these - The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called____________________?
A. Downcomer liquid seal
B. Static submergence
C. Skirt clearance
D. None of these - The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles ?
A. To increase the residence time of shell side fluid
B. To provide support to the tube bundle
C. To reduce the induced vibration in the tubes
D. To increase the tube side heat transfer co-efficient by inducing turbulence - The distance between the centres of a rivet hole to the nearest edge of the plate is called _________________?
A. Pitch
B. Margin
C. Back pitch
D. None of these
