Exponential Growth Quiz with Answers PDF Download – Test 65

MCQ 321: If A' growth rate of number of bacteria at any time t is proportional to the number present at any time t and doubles in 1 week then bacteria after two week is:

1. 4A(t)
2. 0.099A(t)
3. 16A(t)
4. 24A(t)

MCQ 322: A tank contains 400 gal of brine in which 100lb salt is disolved where fresh water runs into the tank at rate of 2 gal/min, if C is salt concenteration, A is amount of salt and V is volume of tank than:

1. C=AV
2. C=V/A
3. C=A/V
4. C=A+V

MCQ 323: System in which output characteristics depend explicitly upon time is known as:

1. Time-invariant system
2. Time-variant system
3. Non-linear system
4. Constant system

MCQ 324: In ^∂⁄_∂x(uv), where u and v are variables, is equals to:

1. u^∂v⁄_∂x+v^∂u⁄_∂x
2. u^∂u⁄_∂x+v^∂v⁄_∂x
3. uv ^∂⁄_∂x+^∂u⁄_∂x(uv)
4. uv^∂⁄_∂x

MCQ 325: A function y=h(x) of a given ODE on some open interval a < x < b if h(x) is defined and differentiable throughout the interval and is such that equation become an identity is called:

1. separation
2. scalar
3. solution
4. summation