Workshop Calculation Science CITS RPL 8

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Q 14) A secondary cell has a terminal voltage of 2.10 V on open circuit. When connected to 0.15 ohm resistance, the terminal voltage drops to 1.90 V. Calculate the internal resistance of the cell.

1 point

1) 0.0157 ohm

2) 0.0177 ohm

3) 0.0187 ohm

4) 0.0197 ohm

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Q 1) Find the answer of the expression 25 * 1.5 + 2.5 / 18 upto 4 places of decimal.

1 point

1) 45.4253

2) 37.6388

3) 52.1245

4) 75.2563

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Q 2) What will be the degree of freedom in the link mechanism shown in the given figure?

1 point

1) 1

2) 2

3) 3

4) 4

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Q 3) Find the original price of the goods, if the craftman sells goods for Rs 450 after giving 25% discount?

1 point

1) 600

2) 650

3) 550

4) 500

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Q 4) In the figure, which measuring quantity is used to measure the cable?

1 point

1) length

2) mass

3) time

4) electric current

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Q 5) Find the mass of an object, if the net force acting on object is 450N which accelerates at 50 m/s2?

1 point

1) 6 kg

2) 9 kg

3) 4 kg

4) 7 kg

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Q 6) In the free body diagram, two forces are shown. What will be the acceleration of the ball, if the weight of the ball is 4kg?

1 point

1) 1.5 m/s2

2) 1.0 m/s2

3) 0.5 m/s2

4) 2.0 m/s2

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Q 7) Find the gravitational force between the two objects m1 and m2 separated by distance 30m having their masses 20kg and 30 kg respectively? Take G as G = 6.6726 x 10-11N-m2/kg2.

1 point

1) 4.4484 x 10-11N

2) 8.2453 x 10-10N

3) 3.5247 x 10-9N

4) 4.4542 x 10-13N

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Q 8) In an inclined plane as shown, potential energy at top of building is 70 J. What will be the potential energy at point A and B?

1 point

1) 35J

2) 70J

3) 0J

4) 100J

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Q 9) In proportionally curve, which alphabet describes yield point?

1 point

1) A

2) B

3) C

4) None of these

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Q 10) What will be the velocity ratio of wheel and axle having wheel diameter as 500 mm and axle diameter as 250mm.

1 point

1) 4

2) 2

3) 1

4) 5

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Q 11) In the free body diagram, the direction of net force is:

1 point

1) 600N Left

2) 1200N Right

3) 600N Up

4) 600N Down

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Q 12) What is the percentage of the fraction 85/25?

1 point

1) 4.5

2) 2.55

3) 3.4

4) 1.85

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Q 13) Find the median of 3,4,7,9,10,2,38,23,38,23

1 point

1) 9

2) 9.5

3) 8

4) 8.5

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Q 15) What will be the power delivered to the circuit, if current across 40 ohm resistor is 2.5A?

1 point

1) 230W

2) 180W

3) 120W

4) 250W

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Q 16) Choose correct statement.

1 point

1) (a) 1 micron = 0.01 mm (B) SI unit of temperature is Kelvin

2) (a) 1 micron = 0.001 mm (B) SI unit of temperature Celsius

3) (a) 1 micron = 0.001 mm (B) SI unit of temperature is Kelvin

4) (a) 1 micron = 0.0001 mm (B) SI unit of temperature is Kelvin

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Q 17) The ratio of the speed of a body to the speed of sound in the surrounding medium is called

1 point

1) Reynold Number

2) Mach Number

3) Supersonic Number

4) Hypersonic Number

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Q 18) Error in measurement is defined as (Instrument reading - true reading). Parallax error in reading on an analog scale comes under classification of

1 point

1) Gross error

2) Systematic error

3) Random error

4) None of these

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Q 19) Anything that moves in a circular path must be acted on by a centripetal force that is ..................... the object s path.

1 point

1) In the same direction as

2) In the opposite direction of

3) Parallel to

4) Perpendicular to

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Q 20) The .................. is the point defining the geometric centre of an object.

1 point

1) Centre of gravity

2) Centre of mass

3) Centroid

4) None of these

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