344) The helix angle for double helical gears may be made up to

45 Degree

60 Degree

75 Degree

90 Degree

Answer is:

45 Degree

Machine Design MCQ with Answers

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345) The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the pitch curve.

Correct

Incorrect

Answer is:

Correct

346) A fast and loose pulley drive is used when

shafts are arranged parallel and rotate in the opposite directions

shafts are arranged parallel and rotate in the same directions

shafts are arranged at right angles and rotate in one definite direction

driven shaft is to be started or stopped whenever desired without interferring with the driving shaft

Answer is:

driven shaft is to be started or stopped whenever desired without interferring with the driving shaft

A fast and loose pulley drive is used when

347) Which of the following screw thread is adopted for power transmission in either direction?

Acme threads

Square threads

Buttress threads

Multiple threads

Answer is:

Square threads

348) In the assembly of pulley, key and shaft

pulley is made the weakest

key is made the weakest

key is made the stongest

all the three are designed for equal strength

Answer is:

key is made the weakest

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344) The helix angle for double helical gears may be made up to

45 Degree

Machine Design MCQ with Answers

Related Machine Design MCQ with Answers

345) The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the pitch curve.

Correct

346) A fast and loose pulley drive is used when

driven shaft is to be started or stopped whenever desired without interferring with the driving shaft

347) Which of the following screw thread is adopted for power transmission in either direction?

Square threads

348) In the assembly of pulley, key and shaft

key is made the weakest

Machine Design MCQ with Answers