384) In a simple harmonic motion, the velocity vector with respect to displacement vector

is in phase

leads by 90 Degree

leads by 180 Degree

lags by 90 Degree

Answer is:

four or more than four links

Theory of Machines MCQ with Answers

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386) The primary unbalanced force of reciprocating masses is inversely proportional to the crank radius.

Yes

Unknown

None

Answer is:

No

387) The load cup of a screw jack is made separate from the head of the spindle to

enhance the load carrying capacity of the jack

reduce the effort needed for lifting the working load

reduce the value of frictional torque required to be countered for lifting the load

prevent the rotation of load being lifted

Answer is:

prevent the rotation of load being lifted

The load cup of a screw jack is made separate from the head of the spindle to

388) In an open pair, the two elements of a pair

have a surface contact when in motion

have a line or point contact when in motion

are kept in contact by the action of external forces, when in motion

are not held together mechanically

Answer is:

are not held together mechanically

389) The secondary unbalanced force is __________ the primary unbalanced force.

one-half

two-third

n times

1/n times

Answer is:

1/n times

Theory of Machines MCQ with Answers

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384) In a simple harmonic motion, the velocity vector with respect to displacement vector

four or more than four links

Theory of Machines MCQ with Answers

Related Theory of Machines MCQ with Answers

386) The primary unbalanced force of reciprocating masses is inversely proportional to the crank radius.

No

387) The load cup of a screw jack is made separate from the head of the spindle to

prevent the rotation of load being lifted

388) In an open pair, the two elements of a pair

are not held together mechanically

389) The secondary unbalanced force is __________ the primary unbalanced force.

1/n times

Theory of Machines MCQ with Answers