In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines

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

$${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$

Rashna Company collected the following data in its accounting records in 2014 : From the income statement : Depreciation expense Tk. 1,000 Loss on sale of equipment 3,000 From the comparative balance sheet : Beginning balance , equipment Tk. 12,500 Ending balance , equipment 8,000 Beginning balance , accumulated depreciation 2,000 Ending balance , accumulated depreciation 2,400 No new equipment was purchased during the year. The equipment was sold at the end of the year. What was the cash in -flow from the sale of equipment in 2014?

A

Tk, 3,900

B

Tk. 1,000

C

Tk. 900

D

Tk. 600

The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank and $$\theta $$ = Angle of inclination of crank to the line of stroke)

A

$${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$

B

$${\text{cm}}{\omega ^2}{\text{r}}\sin \theta $$

C

$$\left( {1 - {\text{c}}} \right){\text{m}}{\omega ^2}{\text{r}}\left( {\cos \theta - \sin \theta } \right)$$

D

$${\text{m}}{\omega ^2}{\text{r}}\left( {\cos \theta - \sin \theta } \right)$$

In order to give a complete secondary balance of a multi-cylinder inline engine,

A

The algebraic sum of the secondary forces must be equal to zero

B

The algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero

C

Both (A) and (B)

D

None of these

The crankshaft of a typical inline four cylinder engine has ________ balance weights.

A

12

B

4

C

16

D

8

In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

A

One-half

B

Two-third

C

Three-fourth

D

Whole

By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is

A

39.2%

B

48.8%

C

84.8%

D

88.4%

By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

A

39.2%

B

48.8%

C

84.8%

D

88.4%

The Balance sheet reported a beginning balance TK. 20,000 in Accounts Receivable and an ending balance of TK. 15,000 . Credit sale of TK. 2,00,000 were made during the year. Using the information compute cash collection from customers.

A

TK. 2,05,000

B

TK. 1,95,000

C

TK. 2,00,000

D

TK. 2,15,000

In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines

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