Description : When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1–N/K) (a) when N/K equals zero (b) when death rate is greater than birth rate (c) when N/K is exactly one (d) when N nears the carrying capacity of the habitat.
Last Answer : (a) when N/K equals zero
Description : The logistic population growth is expressed by the equation (a) dt / dN = Nr K N K − (b) dN / dt = rN K N K − (c) dN / dt = rN (d) dN / dt = rN N K N −
Last Answer : (b) dN / dt = rN K N K −
Description : Asymptote in a logistic growth curve is obtained when (a) K = N (b) K > N (c) K < N (d) the value of ‘r’ approaches zero
Last Answer : (a) K = N
Description : Asymptote in a logistic growth curve is obtained when : (1) K = N (2) K > N (3) K < N (4) The value of 'r' approaches zero
Last Answer : (1) K = N
Description : If the population growth follows a logistic curve, the maximum sustainable yield: (A) is equal to half the carrying capacity. (B) is equal to the carrying capacity. (C) depends on growth rates. (D) depends on the initial population.
Last Answer : (A) is equal to half the carrying capacity.
Description : In the equation P = PS/[1 + loge -1 (nt)] of a logistic curve of population growth, the constant m is (A) Ps × P (B) PS /P (C) (PS - Po)/Po (D) KP
Last Answer : (C) (PS - Po)/Po
Description : Growth of population can be conveniently represented by (A) An arithmetical curve (B) A semi-logarithmic curve (C) A logistic curve (D) A straight line curve
Last Answer : (C) A logistic curve
Description : Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of (A) Increasing (B) Decreasing (C) Constant (D) All the above
Last Answer : (A) Increasing
Description : The order of reaction is the number of moles whose concentrations determine the rate of a reaction at a given temperature Give the integrated equation for first order reaction. K = (2.303 / t) * log (a ... a' is the initial concentration of reactants x' is the amount reacted in time t seconds
Last Answer : What is Threshold energy ?
Description : The transitional middle portion of a logistic curve follows (A) A geometric growth (B) A logarithmic growth (C) A first over curve (D) A constant rate
Last Answer : (D) A constant rate
Description : If D1, D2,…. Dn are domains in a relational model, then the relation is a table, which is a subset of (A) D1+D2+…. +Dn (B) D1x D2x… xDn (C) D1U D2U….UDn (D) D1- D2-….-Dn
Last Answer : (B) D1x D2x… xDn
Description : If `aN = {ax|x in N}` and `bN nn cN = dN`, where `b,c epsilon N`, then
Last Answer : If `aN = {ax|x in N}` and `bN nn cN = dN`, where `b,c epsilon N`, then
Description : Which is the model have to develop in order to protect e-commerce and online shopping provided by e-logistic vendors a) Cloud model b) API model c) Security model d) Trust model
Last Answer : Trust model
Description : The basic filtration equation is given as dt/dV = (µ/A ∆P). [(α .CV/A) + Rm], where, V is volume of the filtrate; A is the filtration area, a is specific cake resistance, μ is viscosity of ... produced? Neglect filter medium resistance, Rm; assume incompressible cake. (A) 10 (B) 20 (C) 25 (D) 30
Last Answer : (B) 20
Description : The first order gas phase reaction as shown in the bellow figure is conducted isothermally in batch mode. The rate of change of conversion with time is given by (A) dXA /dt = k1 (1 - XA ) 2 (1 + 2XA ) (B) dXA /dt = k1 (1 - XA ... 5XA ) (C) dXA /dt = k1 (1 - XA ) (D) dXA /dt = k1 (1 - XA )/(1 + XA )
Last Answer : (C) dXA /dt = k1 (1 - XA
Description : The equation of motion for a vibrating system with viscous damping is d 2 x/dt 2 + c/m X dx/dt + k/m X x = 0 If the roots of this equation are real, then the system will be a) over damped b) under damped c) critically damped d) none of the mentioned Ans:a
Last Answer : a) over damped
Description : A DT signal x(n) is defined as
Last Answer : x(n)= {2,3,4,5,6} � x(-n)={6,5,4,3, 2} � x(-n+4)={6,5,4,3,2} �
Description : The negative sign in the expression e = – N (d∅)/dt is due to: (1) The Fleming’s Rule (2) Thumb’s Rule (3) Faraday’s Law (4) Lenz’s Law
Last Answer : The negative sign in the expression e = – N (d∅)/dt is due to: Lenz’s Law
Description : What is the full form of 'Dn' ? -How To ?
Last Answer : The full form of 'Dn' is Division
Description : In a wide area network (WAN) how would you troubleshoot an issue with the domain name system (DN?
Last Answer : Feel Free to Answer
Description : What does PN 500 DN 13 mean?
Last Answer : Need answer
Description : Mark the correct option a) A Supdt of PO or RMS should not ordinarily remain in charge of the same division for more than 4 years b) Every Supdt of PO should hol charge of RMS Dn for atlease 4 years, c ... or RMS and IPO/IRM should not remain in the same Dn not more than 4 years e) All the above
Last Answer : e) All the above
Description : Mark the correct option a) The due mail and sorting list for PO and mail offices in communication with offices in more than one RMS Dn are prepared and supplied by the Head of the circle b) ... are prepared and supplied to Head, Sub and Branch office by Sub divisional Inspectors. d) All the above
Last Answer : d) All the above
Description : Effective diffusivity (DE) in a catalyst pellet is related to molecular diffusivity (DN) and Knudsen diffusivity (DK) as (A) DE = DM + DK (B) 1/DE = 1/DN + DK (C) DE = DM . DE (D) DE = DN/DE
Last Answer : (B) 1/DE = 1/DN + DK
Description : What is the criterion for DN A fragments movement on agarose gel during gel electrophoresis ? (1) The smaller the fragment size, the farther it moves (2) Positively charged fragments move to farther ... Negatively charged fragments do not move (4) The larger the fragment size, the farther it moves
Last Answer : (1) The smaller the fragment size, the farther it moves
Description : Rate of reaction can be expressed as –dc/dt where dc is small decreasing concentration in time dt seconds, (-) sign indicates that the concentration decreases with time. For every 10 degrees rise of temperature, the rate of reaction is generally. Doubled
Last Answer : Which equation gives the relation between specific rate (k) and Temperature ?
Description : A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume ... 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V
Last Answer : (D) d(VCA )/dt = FCAF - kCA 2V
Description : Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat ... (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000
Last Answer : 21600
Description : Pick out the wrong statement. (A) Visible radiation provides the necessary activation energy in photochemical reactions (B) The order and molecularity of a complex reaction may not be the same (C) For ... rate constant (k) (D) Molecularity of the reaction is always a whole number greater than zero
Last Answer : (B) The order and molecularity of a complex reaction may not be the same
Description : What instruction performs Compare immediate to indirect and jump if not equal. a) CJNE A, #data, rel b) CJNE Rn, #data, rel c) CJNE @ Ri, #data, rel d) CJNE A, data, rel
Last Answer : b) CJNE Rn, #data, rel
Description : The equation m(d 2 x/ dt 2 ) + c (dx/dt) + Kx = F 0 sin ωt is a second order differential equation. The solution of this linear equation is given as A. complementary function B. particular function C. sum of complementary and particular function D. difference of complementary and particular function
Last Answer : C. sum of complementary and particular function
Description : If Cv is the coefficient of consolidation, is the time and is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by (A) Tv = d²/Cv t (B) Tv = t²/d²Cv (C) Tv = Cv3 /d²t (D) Tv = Cv t/dt
Last Answer : Answer: Option D
Description : If Sb, is the average bond stress on a bar of diameter subjected to maximum stress , the length of the embedment is given by (A) l = dt/Sb (B) l = dt/2Sb (C) l = dt/3Sb (D) l = dt/4S
Last Answer : Answer: Option D Answer: Option D
Description : Two opposite forces operate in the growth and development of every population. One of them is related to the ability to reproduce at a given rate. The force opposite to it is called (a) fecundity (b) environmental resistances (c) biotic control (d) mortality.
Last Answer : (b) environmental resistances
Description : What is roro system in logistic management?
Last Answer : Hello! I have an MBA in foreign trade and logistics, hope the explanation below helps! There are different types of freight transport, but today in Stock Logistic we are going to talk about the transport ... loading with the same means. You can make the most of the space available inside the ship.
Description : What are the principles of logistic costing?
Last Answer : The principles of logistic costing include responsiveness,simplicity, flexibility, economy, attainability, sustainability andsurvivability. These principles are a method of logicalthinking.
Description : What logistic companies are near me?
Last Answer : I cannot answer this question without knowing where you are located. The best thing for you to do is to look up the logistic companies in the Yellow Pages and research and compare them to find the right one for your business.
Description : How does logistic software support business functions?
Last Answer : In this fast pace of logistics, there are many Logistics Management Softwares available globally, but it's important to know if the services provided by them suits your requirement or not and to ... management can be done by using logistics management software. All these processes can be done by
Description : What is the name of the function in the following statement “A perceptron adds up all the weighted inputs it receives, and if it exceeds a certain value, it outputs a 1, otherwise it just outputs a 0”? a) Step function b) Heaviside function c) Logistic function d) Perceptron function
Last Answer : b) Heaviside function
Description : Weight slab and docket fee of Logistic post is a) 35 kg & 50/- b) 20 Kg & 20/- c) 50 Kg & 100/- d) None of these
Last Answer : c) 50 Kg & 100/
Description : The e- IOD service would be offered initially with______ a) Business Post b) Logistic Post c) Bill Mail Service d) None of these
Last Answer : c) Bill Mail Service
Description : Service for sending parcels and large consignment across the nation and world called is a) Parcel post b) Media post c) Logistic post d) Express post
Last Answer : c) Logistic post
Description : Logistic Post services was introduced a) 12th Aug 2004 b) 13th c) 13th Aug 2004 d) None of these Ans:c
Last Answer : ) 13th Aug 2004
Description : When the new developed product concept is tested, the next immediate step is to A. develop market strategy B. develop a testing technique C. develop intermediaries D. develop logistic network
Last Answer : A. develop market strategy
Description : When the new developed product concept is tested, the next immediate step is to A.market strategy B.a testing technique C.intermediaries E.logistic network Answer : A
Last Answer : A.market strategy
Description : The name for the function in question 16 is a) Step function b) Heaviside function c) Logistic function d) Perceptron function
Description : Given that for a reaction of nth order, the integrated rate equation is: `K=1/(t(n-1))[1/C^(n-1)-1/C_(0)^(n-1)]`, where `C` and `C_(0)` are the concen
Last Answer : Given that for a reaction of nth order, the integrated rate equation is: `K=1/(t(n-1))[1/C^(n-1)-1/C_(0)^(n-1)] ... `t_(3//4)=t_(1//2) [2^((n-1))+1]`
Description : The rate expression for a heterogeneous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR ... R and A) (A) E (B) E + ΔHA (C) E + ΔHA - ΔHR ) (D) ΔHA + ΔHR
Last Answer : (C) E + ΔHA - ΔHR )
Description : How long does DT from alcohol withdrawal last?
Last Answer : I think it’s around 48 hours but I’m not certain. Welcome to fluther and what a tough question to have to ask. Good luck.
Description : What is "DT" Dovetail pressure locked steel grating?
Last Answer : DT dovetail pressure locked steel grating is one of the most aesthetically pleasing types of grating and is often utilized in home architecture and customer/buyer-focused designs. These gratings utilize ... makes them safe for use with high heels and similar footwear. Contact the team at Interstate