Category: Process Equipment and Plant Design

A. 1
B. 0.85
C. 1.5
D. < 0.5

A. Ratio of true temperature difference to the LMTD
B. Ratio of LMTD to the true temperature difference
C. Differenced of true temperature difference and the LMTD
D. Geometric mean of the true temperature difference and the LMTD

A. 10
B. 50
C. 100
D. 200

A. Lug supports are less expensive than other type of supports
B. A pipe is differentiated from a tube by the fact that a pipe has a greater wall thickness
compared to the tube
C. A reducer is used to change the direction of a pipe in a straight run
D. The method of fixing tubes to a tube sheet by expanding is called ‘tube rolling’

A. Rupture diaphragm
B. Dikes
C. Surge chamber
D. None of these

A. Ratio of liquid depth to tank diameter (i.e. the filling ratio) recommended for most purposes is 1
B. Filling ratio for dispersing gas in a liquid is 2 for sufficiently long contact period
C. Flat bottom and conical bottom vessels have low agitation efficiency for agitation of heavy solids in liquids
D. Dished bottom vessel has very high power consumption

A. Size, shape, orientation and surface of the packing particles
B. Density and viscosity of fluids
C. Fluid flow rates
D. All A., B. and C.

A. Keep a check on the liquid gradient over the plate by direct visual observation
B. Give access to the individual trays for cleaning, maintenance and installation
C. Guard against foaming & entrainment by dumping antifoaming agent through it
D. All A., B. and C.

A. 0.5 d
B. 0.75 d
C. d
D. 2 d

A. Hemispherical
B. Ellipsoidal (2 : 1)
C. Conical
D. Flat plate