Tube height in a calandria type evaporator is normally less than _______________ metres?
A. 1
B. 2
C. 3.5
D. 5.5
Month: March 2019
The ratio, (propeller agitator dia/tank dia) is normally taken as____________________?
The ratio, (propeller agitator dia/tank dia) is normally taken as____________________?
A. 0.15-030
B. 0.5-0.65
C. 0.75-0.85
D. 0.60-0.90
Normal screwed fittings are used for pipes upto a diameter of _______________ inches?
Normal screwed fittings are used for pipes upto a diameter of _______________ inches?
A. 1.5
B. 3
C. 5
D. 9
The ratio of lateral strain to linear strain is termed as the___________________?
The ratio of lateral strain to linear strain is termed as the___________________?
A. Poisson’s ratio
B. Bulk modulus
C. Modulus of elasticity
D. Shear modulus
What is the slope of the operating line in the rectifying section of a distillation column ?
What is the slope of the operating line in the rectifying section of a distillation column ?
A. 0
B. ∞
C. > 1
D. <1
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscosity above ____________________ poise?
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscosity above ____________________ poise?
A. 300
B. 600
C. 1000
D. 1500
Which of the following efficiencies can be greater than 100% ?
Which of the following efficiencies can be greater than 100% ?
A. Overall plate efficiency
B. Murphree plate efficiency
C. Point efficiency
D. None of these
Minimum tube pitch recommended for shell and tube heat exchangers is about _______________ times the outside diameter of the tube?
Minimum tube pitch recommended for shell and tube heat exchangers is about _______________ times the outside diameter of the tube?
A. 1.25
B. 1.75
C. 2.5
D. 3.5
In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?
In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?
A. Results in higher shell side pressure drop
B. Can accomodate less number of tubes for a given shell diameter
C. Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell
side fluid
D. Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer
co-efficient
_____________ heat exchanger is also known as ‘hair pin type’ exchanger?
_____________ heat exchanger is also known as ‘hair type’ exchanger?
A. Double pipe
B. Finned
C. Plate type
D. Regenerative