LIFTING APPLIANCES MCQ
1) Rope slings are used for
Light loads where chain may damage the loads
Heavy loads
Both of the above
None of the above
2) Chain slings are used for
Light loads
Heavy loads
Medium loads
None of the above
3) Which among the following statements is correct in respect of positioning the sling?
Keep the sling as far vertical as possible
Check that the load is not rigid enough to support its own weight
Check that the sling is not bearing on any sharp edge
Place the slings so that the load is unstable
4) A tripod is a device, which consists of
One leg
Two legs
Three legs
Four legs
5) Which one of the foflowing cranes is used for lifting loads and transport to another location?
Overhead crane
Traveling wall crane
Pillar gib crane
Gantry crane
6) A differential hoist is made with
One sheave on the upper block and one sheave on the lower block.
One sheave on the upper block and two sheaves on the lower block.
Two sheaves on the upper block and one sheave on the lower block.
Two sheaves only on the lower block.
7) Which one of the following is a four- wheeled vehicle used for material handling?
Single-girder crane
Traveling wall crane
Pillar gib crane
Industrial fork-lift
8) A tripod consists of three legs, which are locked in position at the bottom by
Foundation bolts
Wire ropes
Retaining chains
Clamps
9) Which among the following is the permanent method of fastening of strands of a rope ?
Loop
Whipping
Round turn
Crowning
10) Fastening of one part of a rope to another part of the rope is known as
11) Bending of a rope is known as
Bight
Round turn
Loop
Knot
12) Which among the following is made by crossing the sides of bight?
Loop
Round turn
Knot
Whipping
13) Which one of the following types of knots is used for shortening a rope without cutting?
Square knot
Slip knot
Bowline knot
Sheep shank knot
14) Which one of the following knots is very easy to untie ?
Bowline knot
Slip knot
Square knot
Double hitch knot
15) S.W.L. means
Safe working load
Side working load
Standard working load
Stable working load
16) Which one of the following groups of properties enables the manufacture of chain hooks from wrought iron?
Hardness, toughness and ductility
Malleability, ductility and toughness
Hardness, toughness and brittleness
Ductility, malleability and hardness
17) What is NOT an example of a machine?
Bridge
Staircase
Pulley
Ramp
18) A screw thread is a kind of simple machine. It is a shaft with spiral grooves called threads formed on its surface. The closer the threads are, the higher the mechanical advantage. Why?
The threads increase the input force required.
The threads change potential energy to mechanical energy.
The threads increase the force over a shorter distance.
The threads increase the distance a force is applied.
19) If the mechanical advantage of a simple machine is 4, then the
effort is 4 times the output force.
work output is 4 times the input.
output force is 4 times the effort.
efficiency is 4%
20) A pulley system has 3 sections of ropes that lift the load. The mechanical advantage of the system isdifferentials is of the type
3
1
0
2
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