For low and moderate speed engines, the cam follower should move with

Machine Design
For low and moderate speed engines, the cam follower should move with

Uniform velocity

Uniform acceleration and retardation

Simple harmonic motion

Cycloidal motion

Uniform velocity

Uniform acceleration and retardation

Simple harmonic motion

Cycloidal motion

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2000 N-m

2136 N-m

2050 N-m

2100 N-m

2000 N-m

2136 N-m

2050 N-m

2100 N-m

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Machine Design
Elastic nut is a locking device in which

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

All of these

1 mm for rivet diameter from 27 mm to 36 mm

0.5 mm up to rivet diameter of 24 mm

2 mm for rivet diameter from 39 mm to 48 mm

All of these

1 mm for rivet diameter from 27 mm to 36 mm

0.5 mm up to rivet diameter of 24 mm

2 mm for rivet diameter from 39 mm to 48 mm

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Machine Design
Form coefficient of spring is

Its capability of storing energy

Ratio of coil diameter to wire diameter

Load required to produce unit deflection

Concerned with strength of wire of spring

Its capability of storing energy

Ratio of coil diameter to wire diameter

Load required to produce unit deflection

Concerned with strength of wire of spring

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Machine Design
The connecting rod bolts are tightened up with initial tension greater than the external load so that

Joint may not open up

Bolts will not loosen during service

The resultant load on the bolt would not be affected by the external cyclic load

Bolts are weakest elements

Joint may not open up

Bolts will not loosen during service

The resultant load on the bolt would not be affected by the external cyclic load

Bolts are weakest elements

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Machine Design

Machine Design For low and moderate speed engines, the cam follower should move with

Machine Design Elastic nut is a locking device in which

Machine Design According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

Machine Design Form coefficient of spring is

Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that

Machine Design
For low and moderate speed engines, the cam follower should move with

Machine Design
Elastic nut is a locking device in which

Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

Machine Design
Form coefficient of spring is

Machine Design
The connecting rod bolts are tightened up with initial tension greater than the external load so that