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Recently added practice questions

9601. For coarse reduction of hard solids, use ____________________?
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A. Attrition

B. Impact

C. Cutting

D. Compression
9602. For calculating the permissible stress 0 y /[(1 + a(l/r)] is the empirical formula, known as__________________?
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A. Perrys formula

B. Rankines formula

C. Straight line formula

D. Parabolic formula

9603. For Booker T. Washington, racial uplift means_______________?
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A. Separating Blacks by income level

B. Allowing Whites to help African

C. Calling for violent uprisings.

D. ricans to reach their potential.</strong>

E. Rejecting all White assistance.

9604. For applications involving high stresses in one direction only the following type of thread would be best suited______________________?
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A. ISO metric thread

B. buttress thread

C. square thread

D. acme thread

E. British Association thread

9605. For any system, what is the minimum number of degrees of freedom ?
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A. 2

B. 1

C. 3

D. 0
9606. For an integrating circuit to be effective , the RC product should be____________ the time period of the input wave?
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A. 5 times smaller than

B. At least 10 times greater than

C. 5 times greater than

D. Equal to

9607. For an incompressible fluid, the bulk modulus of elasticity is____________________?
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A. 5 kg/m3

B. 0 N/m

C. 1 N

D. ? N/m2
9608. For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant ?
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A. ction

B. Increases /decreases with pressure depending on the stoichiometric co-efficients of the

C. Increases with pressure

D. Is independent of pressure

E. Decreases with pressure

9609. For an EHV equipment for maintenance first it should be isolated and connected to ground because_____________?
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A. to provide low impedance

B. to discharge the charging capacitance to ground

C. protection for operating personnel

D. both (B) and (C)
9610. For an autocatalytic reactor, the suitable reactor set up is__________________?
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A. CSTR in series

B. P.F. reactors in series

C. P.F. reactor followed by CSTR

D. CSTR followed by P.F. reactor
9611. For achieving maximum capacity of the ball mill, the ball charge should be equal to about ______________ percent of the ball mill volume?
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A. 25

B. 50

C. 10

D. 75

9612. For accurate work, the steel band should always be used in preference to chain because the steel band______________?
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A. is lighter than chain

B. can be easily repaired in the field

C. is practically inextensible and is not liable to kinks when in use

D. is easier to handle

9613. For a _____________ order reaction, the units of rate constant and rate of reaction are the same ?
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A. Zero

B. Fractional

C. First

D. Second

9614. For a zero order chemical reaction, the__________________?
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A. Products concentration increases linearly with time

B. All A., B. and C.

C. Plot of products concentration with time is a straight line through the origin

D. Half life period is directly proportion to the initial concentration of the reactants

9615. For a tacheometer the additive and multi-plying constants are respectively________________?
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A. 0 and 100

B. 100 and 100

C. 100 and 0

D. 0 and 0

9616. For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust__________________?
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A. becomes zero

B. remains unchanged

C. is increased

D. is decreased
9617. For a symmetrical distribution approximately 68% of the cases are included between _________________?
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A. None of these

B. X?S and X+S

C. X?2S and X+2S

D. X?3S and X+3S

9618. For a standard 45 fillet, the ratio of size of fillet to throat thickness is_______________?
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A. 1:01

B. 1 : V2

C. 2:01

D. V2 : 1
9619. For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system _____________ as its mole fraction increases?
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A. Decreases linearly

B. Remain same

C. Decreases

D. Increases
9620. For a spontaneous natural process at constant temperature and pressure, the free energy of the system always____________________?
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A. Decreases

B. Increases to a maximum before decreasing

C. Remain constant

D. Increases

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