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 

Bight
Loop
Round turn
Knot





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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