Machine Design MCQ with Answers

Machine Design MCQ with Answers

81) In a crossed belt drive, the shafts are arranged parallel and rotate in the same directions.

Answer is:

Incorrect

82) In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Answer is:

helix angle

83) Idler pulley is used for

Answer is:

for applying tension

84) The bell crank levers used in railway signalling arrangement are of third type levers.

Answer is:

Wrong

The bell crank levers used in railway signalling arrangement are of third type levers.

85) When spring index increases, the value of Wahl's stress factor

Answer is:

increases exponentially

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