The equation which is obtained by multiplying each equation by the coefficient of its unknowns and by adding the equations thus formed, is known as?

LohaHridoy
  1. Observation equation
  2. Conditional equation
  3. Normal equation
  4. None of these

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Answer: Option 3

Let'

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A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will?

Answer: Option 3 Let'

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What logic function is obtained by adding an inverter to the inputs of an AND gate?

Answer: Option 4 Let'

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What logic function is obtained by adding an inverter to the output of an AND gate?

Answer: Option 2 Let'

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For a shoe brake, the equivalent coefficient of friction is equal to (where $$\mu $$ = Actual coefficient of friction and $$\theta $$ = Semi-block angle)?

Answer: Option 4 Let'

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Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, cp = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity)?

Answer: Option 3 Reynolds number (RN) is given byRN = ρ V l /μwhere h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal...

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Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)?

Answer: Option 1 Let'

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A two digit number ab is added to another number ba, which is obtained by reversing the digits then we get three digit number. Thus (a + b) equals to:?

Answer: Option 4 When two two digit numbers are added and the resultant value is a three digit number. It means there must be a carry over (i.e. The sum...

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If the digit in the unit's place of a two-digit number is halved and the digit in the ten's place is doubled, the number thus obtained is equal to the number obtained by interchanging the digits. Which of the following is definitely true ?

Answer: Option 4 Let the ten's digit be x and the unit's digit be y Then, number = 10x + y New number : $$\eqalign{ & = 10 \times 2x + \frac{y}{2} \cr & =...

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Answer: Option 5 Young people, who do not get employment due to the large number of applicants in all fields, must surely be given allowance so that they can support...

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Costing technique, which traces direct costs by multiplying price rate for producing actual outputs is known as?

Answer: Option 2 Costing technique, which traces direct costs by multiplying price rate for producing actual outputs is known as standard costing. Standard costing is the practice of substituting an...

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