Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?

Byadmin March 2, 2019August 23, 2021

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about _____________ kcal/hr.m2.°C?

A. 1250
B. 2500
C. 7500
D. 15000

Process Equipment and Plant Design

Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally ____________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8″)?

Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally ____________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8″)?

A. Half
B. Three fourth
C. Equal to
D. 1.5 times

Read More Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally ____________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8″)?
Process Equipment and Plant Design

In case of a continuous distillation column, increase in reflux ratio may result in the______________?

In case of a continuous distillation column, increase in reflux ratio may result in the______________?

A. Lower fixed charges for the column
B. Greater cost for the reboiler heat supply
C. Greater cost for the condenser coolant
D. All A., B. and C.

Read More In case of a continuous distillation column, increase in reflux ratio may result in the______________?
Process Equipment and Plant Design

In case of design of a shell and tube heat exchanger___________________?

In case of design of a shell and tube heat exchanger___________________?

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.

Read More In case of design of a shell and tube heat exchanger___________________?
Process Equipment and Plant Design

Speed of industrial paddle agitator ranges from _____________ rpm?

Speed of industrial paddle agitator ranges from _____________ rpm?

A. 1 to 5
B. 20 to 100
C. 500 to 750
D. 1000 to 2000

Read More Speed of industrial paddle agitator ranges from _____________ rpm?
Process Equipment and Plant Design

Safety valves are provided in chemical equipments to guard against excessive_________________?

Safety valves are provided in chemical equipments to guard against excessive_________________?

A. Temperature
B. Pressure/pressure fluctuation
C. Turbulence
D. Noise

Read More Safety valves are provided in chemical equipments to guard against excessive_________________?
Process Equipment and Plant Design

In sieve plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally ______________ times the hole diameter to give the required hole area?

In sieve plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally ______________ times the hole diameter to give the required hole area?

A. 0.5 to 1.5
B. 2.5 to 4.0
C. 5 to 10
D. 10 to 15

Read More In sieve plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally ______________ times the hole diameter to give the required hole area?

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