Process Equipment and Plant Design The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm. Half Three fourth One fourth Equal to Half Three fourth One fourth Equal to ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube) 4(P² - πd²/4)/πd 4P²/πd Πd/4P² (P² - πd²/4)/πd 4(P² - πd²/4)/πd 4P²/πd Πd/4P² (P² - πd²/4)/πd ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter. 1/5-1/10th 1/10-1/15th 1/20-1/30th 1/2 to 1/4th 1/5-1/10th 1/10-1/15th 1/20-1/30th 1/2 to 1/4th ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger? 25% cut segmental baffle Orifice baffle 75% cut segmental baffle Disk and doughnut baffle 25% cut segmental baffle Orifice baffle 75% cut segmental baffle Disk and doughnut baffle ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is pD/4t pD/2t pD/6t pD/3t pD/4t pD/2t pD/6t pD/3t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency Decreases Remains same Increases May increase or decrease depending upon the plate spacing Decreases Remains same Increases May increase or decrease depending upon the plate spacing ANSWER DOWNLOAD EXAMIANS APP