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Recently added practice questions

9621. For a single component absorber, the operating line is straight only when plotted in term of ______________ units?
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A. Mole ratio

B. Partial pressure

C. Mole fraction

D. None of these

9622. For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be________________?
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A. 900 mm

B. 750 mm

C. more than 1 m

D. 600 mm

9623. For a simple pendulu,m the restoring force is caused by________________?
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A. Spring

B. Hand

C. Gravity

D. All of these

9624. For a reaction of the type of bellow given figure, the rate of reaction (- rx) is given by___________________?
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A. (K1 + K2+K3) CX

B. K1CV K2CX

C. (K1 + K1) CX

D. (K1 K2) CX

9625. For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?
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A. Kc is generally greaer than Kp

B. Kc is generally less than Kp

C. Kc is equal to Kp if the total moles of reactants and products are equal

D. Kc is generally equal to Kp

9626. For a product layout the material handling equipment must _________________?
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A. employ conveyor belts, trucks, tractors etc.

B. arranging shops according to specialization of duties

C. be designed as special purpose for a particular application

D. have full flexibility

E. be a general purpose type

9627. For a number of columns constructed in a rcjw, the type of foundation provided, is_______________?
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A. Strip

B. Raft

C. Footing

D. Strap

9628. For a non-concurrent force system to be in equilibrium__________________?
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A. only the closure of force polygon is sufficient

B. only the closure of funicular polygon is sufficient

C. both force polygon and funicular polygon must close

D. none of the above

9629. For a good communication_____________is required?
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A. Dramatic Presentation

B. Clarity of thought

C. Speaking in a mild tone

D. Speaking without pause
9630. For a given size of bucket, the ideal output of a dragline will be least in_______________?
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A. Moist loam

B. Wet sticky clay

C. Good common earth

D. Sand and gravel

9631. For a given fluid, as the pipe diameter increases, the pumping cost ______________________?
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A. Decreases

B. Remains the same

C. May increase or decrease, depending upon whether the fluid is Newtonian or non-Newtonian

D. Increases

9632. For a given fluid flow rate, which of the following incurs maximum head loss ?
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A. All of them incur the same head loss

B. Orificemeter

C. Flow nozzle

D. Venturimeter

9633. For a given discharge, the efficiency of sedimentation tank can be increased by______________?
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A. decreasing the depth of tank

B. increasing the depth of tank

C. decreasing the surface area of tank

D. increasing the surface area of tank
9634. For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?
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A. 2/3dm3

B. 1/2dm3

C. 1/3dm3

D. 1/4dm3

9635. For a floating body to be in equilibrium_____________________?
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A. meta centre should be above e.g.

B. none of the above

C. centre of buoyancy and e.g. must lie on same vertical plane

D. all of the above

E. a righting couple should be formed

9636. For a floating body to be in equilibrium_____________________?
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A. a righting couple should be formed

B. none of the above

C. all of the above

D. meta centre should be above e.g.

E. centre of buoyancy and e.g. must lie on same vertical plane

9637. For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams__________________?
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A. Increases

B. Decreases

C. Remain unaffected

D. Passes through a maximum

9638. For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for dia of the tank in question), the thickness of the courses of shell_________________?
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A. ld be maintained inside the shell

B. May decrease or increase upwards depending upon whether vacuum or positive pressure

C. Decreases upwards

D. Remains same throughout

E. Increases upwards

9639. For a counter current heat exchanger with Ti h = 80C, Tc = 60C, Th = 50C and Ti c = 30C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy___________________?
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A. dT/dZ = 0

B. d2T/dZ2 = 0

C. d2T/dZ2 < 0

D. d2T/dZ2 > 0

9640. For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is___________________?
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A. 1

B. 2

C. 3

D. 5

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