5 N-m
7 N-m
10 N-m
15 N-m
D. 15 N-m
Larger
Smaller
Equal
Larger/smaller depending on diameter of spring coil
Twice
Four times
Eight times
Sixteen times
External load applied
Initial tension due to tightening of the bolt
Relative elastic yielding of the bolt and the connected members
All of the above
Thickness of plates to be riveted
Length of rivet
Diameter of head
Nominal diameter
Normal pitch
Axial pitch
Diametral pitch
Module
For conveying steam
In water and sewage systems
In pressure lubrication systems on prime movers
All of the above
Elastic limit
Ultimate tensile strength
Young's modulus
Endurance limit
Parallel
Perpendicular
Both A and B
None of these
Angular bevel gears
Mitre gears
Crown Bevel gears
Internal bevel gears
Same
Coarser
Finer
Very fine
Static load
Dynamic load
Impact load
Completely reversed load
Belt velocity
Initial belt tension
Arc of contact
All of the above
12
14
18
24
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Surface of the tooth below the pitch surface
Width of the tooth measured along the pitch circle
They are cheap
They can work at high temperature
They are unaffected by moisture and humidity
None of the above
In decreasing the slip of the belt
In increasing the slip of the belt
To keep the belt in centre on a pulley while it is in motion
To increase pulley life
A taper key which fits half in the key way of hub and half in the key way of shaft
A taper key which fits in a key way of the hub and is flat on the shaft
A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft
Provided in pairs at right angles and each key is to withstand torsion in one direction only
√(T/m)
√(T/2m)
√(T/3m)
None of these
The stress concentration in static loading is more serious in ductile materials and less serious in brittle materials
The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials
The toughness of a material increases when it is heated
The shear stress in a beam varies from zero at the neutral surface and maximum at the outer fibres
Load lifted to the effort applied
Mechanical advantage to the velocity ratio
Load arm to the effort arm
Effort arm to the load arm
1
2
3
4
Square
Acme
Buttress
BSW
One-eighth
One-fourth
One-half
Double
Jam nut
Castle nut
Sawn nut
Ring nut
Half
Twice
Thrice
None of these
A pair of tongs
Hand wheel of a punching press
Lever of a loaded safety valve
Handle of a hand pump
Higher
Lower
Same
None of these
Only the broken belt is replaced
The entire set of belts is replaced
The broken belt and the belt on either side of it, is replaced
The broken belt need not to be replaced
Shafts are arranged at right angles and rotate in one definite direction
Shafts are arranged parallel and rotate in the opposite directions
Shafts are arranged parallel and rotate in the same directions
Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft
2
4
8
16