A. 2.5
B. 5
C. 12.5
D. 17.5
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. 60
B. 200
C. 350
D. Negligible
A. Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for
pressure vessels operating above a pressure of 1.5 MN/m2
B. Resist half the pressure rating compared to hemi spherical head provided on the cylindrical
shell of the same thickness and diameter
C. Are approximately as strong as seamless cylindrical shell having the corresponding I.D and
O.D
D. All A., B. and C.
A. Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch
B. Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto
15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than
tube diameter
C. O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres
D. All A., B. & C.
A. Central dished section and corner torus section
B. Corner torus section and central dished section
C. Central dished section and straight flange section
D. Straight flange section and corner torus section
A. 4(0.86P2 – πd2/4)/πd
B. (P2 – πd2/4)/πd
C. 4(0.86P2 – πd2)/πd
D. (4P2 + πd2/4)/πd