Related Questions

The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.
A Flat plate
B Hemispherical
C Torispherical
D Ellipsoidal
A pressurised water reactor (PWR) uses pressurised water as a
A Coolant
B Working fluid in power turbine
C Moderator
D None of these
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is
A $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
B $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{\text{t}}}$$
D $$\frac{{{\text{pd}}}}{{3{\text{t}}}}$$
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is
A $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
B $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{\text{t}}}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}}}$$
For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would
A Decrease
B Increase
C First decrease and then increase
D First increase and then decrease
Cylinderical shell thickness of rotary drier is generally __________ mm.
A 2-3
B 18-22
C 6-8
D 12-15
Pressure in a Pressurised Water Reactor (PWR) is used for
A Maintaining constant pressure in the primary cooling circuit under varying loads
B Superheating the steam
C Pressurising the water in the primary coolant circuit
D None of these
Coolant present in the primary circuit of a pressurised water reactor is high pressure
A Sub cooled water
B Saturated water
C Superheated steam
D Saturated steam
The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.
A Newtonion
B Pseudoplastic
C Dilatent
D Bingham plastic
Lurgi coal gasifier is a pressurised __________ bed reactor.
A Moving
B Fixed
C Fluidised
D Entrained

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