A point on a connecting link (excluding end points) of a double slider crank mechanism traces a

Match list I with list II List I List II A. Pantograph 1. Scotch yoke mechanism B. Single slider crank 2. Double lever mechanism C. Double slider crank chain 3. Tchebicheff’s mechanism D. Straight line motion mechanism 4. Double crank 5. Hand pump

A

A-4,B-3,C-5,D-1

B

A-2,B-5,C-1,D-3

C

A-2,B-1,C-5,D-3

D

A-4,B-5,C-2,D-1

Consider the following statements: In a slider-crank mechanism, the slider is at its dead centre position when the (i) slider velocity is zero (ii) slider velocity is maximum (iii) slider acceleration is zero (iv) slider acceleration is maximum Which of the above statements are correct?

A

1 and 4

B

1 and 3

C

2 and 3

D

2 and 4

In a slider crank mechanism, the length of the crank and connecting rod are 150 mm and 600 mm respectively. The crank position is 60° from inner dead centre. The crank shaft speed is 400 r.p.m. (clockwise). Velocity of the slider is ________

A

6.9 m/s

B

6.12 m/s

C

7.32 m/s

D

6.66 m/s

In a slider crank mechanism, the length of the crank and connecting rod are 180 mm and 540 mm respectively. The crank position is 45° from inner dead centre. The crank shaft speed is 450 r.p.m. (clockwise), calculate angular velocity of the connecting rod in rad/s.

A

10.3

B

11.1

C

12.2

D

11.8

In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine linear velocity of the midpoint of the connecting rod in m/s. Crank angle = 45° from IDC.

A

4.1

B

4.4

C

4.8

D

5.2

In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine acceleration of the midpoint of the connecting rod in m/s2. Crank angle = 45° from IDC.

A

117

B

144

C

148

D

252

How far is point 'R' from Point 'T'? Statement (I): Point 'R' is 5 metres to the north of point 'M'. Point 'U' is 4 metres to the east of point 'R'. Point 'T' is to the west of point 'R' such that points 'U' 'R' and 'T' form a straight line of metres. Statement (II): Point 'Z' is metres to the south of point 'T'. Point 'U' is metres to the east of point 'T'. Point 'M' is metres to the east of point 'Z'. Point 'R' is metres to the north of point 'M'. Point 'R' lies on the line formed by joining points 'T' and 'U'.

A

Statement (I) and (III) are independently sufficient to answer the question.

B

Statement (I) and (II) are together required to answer the question.

C

Statement (I) alone is sufficient to answer the question while statement (II) is not sufficient to answer the question.

D

Statement (II) alone is sufficient to answer (I) is not sufficient to answer the question.

A point on a connecting link of a double slider crank mechanism traces a

A

straight line path

B

hyperbolic path

C

parabolic path

D

elliptical path

If the crank rotation angle varies from 45 degrees to 135 degrees, Using three precision points with chebyshev’s spacing, synthesize a slider crank mechanism where where displacement of slider is square of the crank rotation. From the above information calculate ‘a’ in mm.

A

48.2

B

58.2

C

45.6

D

42.2

If the crank rotation angle varies from 45 degrees to 135 degrees, Using three precision points with chebyshev’s spacing, synthesize a slider crank mechanism where where displacement of slider is square of the crank rotation. From the above information calculate ‘c’ in mm.

A

148.2

B

158.2

C

135.7

D

120.2

A point on a connecting link (excluding end points) of a double slider crank mechanism traces a

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