Related Questions

Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts?
A theory of machines
B applied mechanics
C kinematics
D kinetics
Which of the following disciplines provides study of relative motion between the parts of a machine?
A theory of machines
B applied mechanics
C kinematics
D kinetics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point
A Same as
B Twice
C Thrice
D Four times
The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
A $${\text{m}}{\omega ^2}{\text{r}}\sin \theta $$
B $${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$
C $${\text{m}}{\omega ^2}{\text{r}}\frac{{\sin 2\theta }}{{\text{n}}}$$
D $${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$
The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
A $${\text{m}}{\omega ^2}{\text{r}}\sin \theta $$
B $${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$
C $${\text{m}}{\omega ^2}{\text{r}}\frac{{\sin 2\theta }}{{\text{n}}}$$
D $${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$
In a shipment of 120 machine parts, 5 percent were defective. In a shipment of 80 machine parts, 10 percent were defective. For the two shipments combined, what percent of the machine parts were defective?
A 6.5%
B 7%
C 7.5%
D 8.0%
In a shipment of 120 machine parts, 5 percent were defective. In a shipment of 80 machine parts, 10 percent were defective. For the two shipments combined, what percent of the machine parts were defective ?
A 6.5%
B 7.0%
C 7.5%
D 8.0%
In a shipment of 250 machine parts, 4% were defective. In another shipment of 50 parts, 10% were defective. For two shipments combined what percent of the machine parts were defective?
A 3%
B 5%
C 7.5%
D 8%
in a shipment of 120 machine parts, 5% were defective. In a shipment of 80 machine parts 10% were defective. For the two shipments combined, what percent of the machine parts were defective?
A 6.5%
B 7.0%
C 7.5%
D 8.5%
In a shipment of 120 machine parts 5 percent , 5 percent were defective , In a shipment of 80 machine parts , 10 percent were defective. For the two shipments combined , what percent of the machine parts were defective ?
A 6.5%
B 7%
C 7.5%
D 8.0%

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