For high speed engines, the cam follower should move with
A. Uniform velocity
B. Simple harmonic motion
C. Uniform acceleration and retardation
D. Cycloidal motion
Select an option to see the answer and solution.
For low and moderate speed engines, the cam follower should move with
A. Uniform velocity
B. Simple harmonic motion
C. Uniform acceleration and retardation
D. Cycloidal motion
Select an option to see the answer and solution.
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by
A. 0.5 mm up to rivet diameter of 24 mm
B. 1 mm for rivet diameter from 27 mm to 36 mm
C. 2 mm for rivet diameter from 39 mm to 48 mm
D. All of the above
Select an option to see the answer and solution.
Taper on the cotter and slot is provided
A. On both the sides
B. On one side only
C. On none of the sides
D. May be provided anywhere
Select an option to see the answer and solution.
The washer is generally specified by its
A. Outer diameter
B. Hole diameter
C. Thickness
D. Mean diameter
Select an option to see the answer and solution.
A screw is specified by its
A. Major diameter
B. Minor diameter
C. Pitch diameter
D. Pitch
Select an option to see the answer and solution.
The ratio of pitch circle diameter in millimeters to the number of teeth, is called
A. Circular pitch
B. Diametral pitch
C. Module
D. None of these
Select an option to see the answer and solution.
In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called
A. Normal pitch
B. Axial pitch
C. Diametral pitch
D. Module
Select an option to see the answer and solution.
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called
A. Normal pitch
B. Axial pitch
C. Diametral pitch
D. Module
Select an option to see the answer and solution.
The centrifugal tension in belts
A. Decreases the power transmitted
B. Increases the power transmitted
C. Increase the wrap angle
D. Increases the belt tension without increasing power transmission
Select an option to see the answer and solution.
The notch angle of the Izod impact test specimen is
Select an option to see the answer and solution.
For maximum power, the velocity of the belt will be
Select an option to see the answer and solution.
When a bolt is subjected to an external load, the stress induced in the bolt will be
A. Tensile stress
B. Shear stress
C. Combined tensile and shear stress
D. Any one of these
Select an option to see the answer and solution.
The form factor of a helical gear __________ with the increase in the helix angle.
A. Increases
B. Decreases
C. Remains constant
D. None of these
Select an option to see the answer and solution.
A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm2 . If the permissible tensile stress in the metal is 20 N/mm2 , then the thickness of the metal required for making the pipe will be
A. 5 mm
B. 10 mm
C. 15 mm
D. 25 mm
Select an option to see the answer and solution.
The velocity of sliding __________ the distance of the point of contact from the pitch point.
A. Is directly proportional to
B. Is inversely proportional to
C. Is equal to cosφ multiplied by
D. Does not depend upon
Select an option to see the answer and solution.
The flank of the tooth is the
A. Surface of the top of the tooth
B. Surface of the tooth above the pitch surface
C. Width of the tooth measured along the pitch circle
D. Surface of the tooth below the pitch surface
Select an option to see the answer and solution.
The face of the tooth is the
A. Surface of the top of the tooth
B. Surface of the tooth above the pitch surface
C. Surface of the tooth below the pitch surface
D. Width of the tooth measured along the pitch circle
Select an option to see the answer and solution.
The function of the washer is to
A. Fill up the axial gap
B. Provide bearing area
C. Provide cushioning effect
D. Absorb shocks and vibrations
Select an option to see the answer and solution.
In order to obtain bolt of uniform strength
A. Increase shank diameter
B. Increase its length
C. Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread
D. Tighten die bolt properly
Select an option to see the answer and solution.