The linear momentum equations is a____ equation.

• A) scalar
• B) vector
• C)
• D)

Which of the following is the more general form of Newton’s second law?

• A) $∑\overline{F}=d/dt ∫_{sys} m\overline{V}dV$
• B) $∑\overline{F}=d/dt ∫_{sys} ρ\overline{V}dV$
• C) $∑\overline{F}= ∫_{sys} ρ\overline{V}dV$
• D) $∑\overline{F}=d/dt ∫_{sys} \overline{V}dV$

Which of the following is expression for moment of momentum?

• A) $\overline{r}\times \rho m \overline{V}$
• B) $\overline{r}\times m \overline{V}$
• C) $\overline{r}\times \rho \overline{V}$
• D) $\overline{r}\times \overline{V}$

The magnitude of torque M acting on a point mass m at normal distance r from the axis of rotation is equal to ______, where $\alpha$ is angular acceleration.

• A) $m r^2 \alpha$
• B) $m r \alpha^2$
• C) $m r^2 \alpha^2$
• D) $m r \alpha$

Which of the following is expression for moment of a force?

• A) $\overline{F}\times \overline{r}$
• B) $\overline{r}\times \overline{F}$
• C) $\overline{V}\times \overline{F}$
• D) $\overline{r}. \overline{F}$

$\rho\overline{V}dV$ is called _______.

• A) momentum
• B) moment
• C) momentum flow rate
• D) torque

$\overline{r}\times \dot{m }\overline{V}$ represents _______.

• A) moment flux
• B) angular momentum flow rate
• C) moment flow rate
• D) linear momentum flow rate

Which of the following is Momentum flow rate across an inlet or outlet?

• A) $\dot{m} \overline{V_{avg}} A_{c}$
• B) $\dot{m} \overline{V_{avg}}$
• C) $\rho \overline{V_{avg}} A_{c}$
• D) $\rho \overline{V_{avg}}$

Mass flow rate across an inlet or outlet: $\dot{m} =$______.

• A) $V_{avg} A_{c}$
• B) $mρ V_{avg} A_{c}$
• C) $ρ V_{avg} A_{c}$
• D) $m V_{avg} A_{c}$

The magnitude of angular momentum ($H$) is equal to _____.

• A) $I^2 \omega \alpha$
• B) $I \omega$
• C) $I \omega \alpha$
• D) $I \alpha$

Which of the following is expression for rotational kinetic energy?

• A) $1/2 \rho r^2 \omega^2$
• B) $1/2 m r^2 \omega$
• C) $1/2 m r^2 \omega^2$
• D) $1/2 m r \omega^2$

Total torque ($M$) is equal to _____, where $\alpha$ is angular acceleration and $I$ is moment of inertia.

• A) $I\alpha$
• B) $I\alpha^2$
• C) $I^2\alpha$
• D) $\rho I\alpha$

The linear momentum equation is obtained from Reynolds transport theorem by setting $b=$____ and $B=$______.

• A) $b=\overline{V} and$ $B=\rho\overline{V}$
• B) $b= m\overline{V} and$ $B= m\overline{V}$
• C) $b=\overline{V} and$ $B= m \overline{V}$
• D) $b= m\overline{V} and$ $B=\overline{V}$

Which of the relationship between linear acceleration in tangential direction ($a_{t}$) and angular acceleration ($\alpha$)?

• A) $a_{t} = \alpha/r$
• B) $a_{t} =\omega r \alpha$
• C) $a_{t} =\omega \alpha/r$
• D) $a_{t} =r \alpha$

The radial flow devices are best analyzed with _____.

• A) angular momentum equation
• B) linear momentum equation
• C)
• D)

The scaling parameters are based on _____.

• A) primary dimensions
• B) dimensionless quantities
• C) both primary and secondary dimensions
• D) secondary dimensions

Kilogram is the unit used to measure the dimension of ______.

• A) amount of matter
• B) mass
• C) amount of light
• D) time

The Froude number ($Fr$) is equal to _____.

• A) $Fr=\frac { V}{\sqrt{gL}}$
• B) $Fr=\frac { V}{gL}$
• C) $Fr=\frac {{gL}}{ V}$
• D) $Fr=\frac {\sqrt{gL}}{ V}$

The dimension of velocity is ____.

• A) mt-1
• B) Lt-2
• C) Lt--1
• D) mt-2

If $t=3.01s, w_0=1.83m/s\ and\ z_0=2m$, then dimensionless time ($t^*$) is equal to________.

• A) $t^*=2.7$
• B) $t^*=2.71$
• C) $t^*=2.75$
• D) $t^*=2.79$