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JSSC JE (ME) :QUIZ-7 || Balancing

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Question 1

In order to balance the reciprocating masses _________.

Question 2

Multi-cylinders engine gives______.

Question 3

The principle of direct and reverse cranks is readily applicable to __________.

Question 4

What should be the angle between the two cylinder V line engine such that all the primary and secondary forces as well as couples are perfectly balanced.

Question 5

In order to facilitate the starting of locomotive in any position, the cranks of a locomotive with two cylinders are placed at following angle to each other ___________.

Question 6

Masses M₁, M₂ and 10 kg are attached at the radii of 60cm to the shaft in parallel planes as shown in the figure below. If the shaft is rotating the mass M₂ is.

Question 7

Consider a reciprocating engine with radius R and connecting rod of length L. The secondary unbalance force for this case is equivalent to primary unbalance force due to a virtual crank of __________

Question 8

When the primary direct crank of a reciprocating engine positioned at 30° clockwise, the secondary reverse crank for balancing will be at

Question 9

If there are several unbalanced masses in a rotor in different planes, the minimum number of balancing masses required is

Question 10

Partial balancing in locomotives results in:-

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AE & JE Exams Mechanical Engineering

Jun 2AE & JE Exams