ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Which lever is mainly used to gain speed?
A)
First-class
B)
Second-class
C)
Third-class
D)
Compound
Option B is correct: Second-class.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
A perfect black body absorbs:
A)
Some radiation
B)
No radiation
C)
All radiation
D)
Only visible light
Option C is correct: All radiation.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Thermal conductivity is the:
A)
Ability to store heat
B)
Ability to transfer heat
C)
Ability to reflect heat
D)
Ability to absorb light
Option B is correct: Ability to transfer heat.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Which factor mainly reduces efficiency of a machine?
A)
Friction
B)
Speed
C)
Load
D)
Distance
Option A is correct: Friction.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Which material has the highest thermal conductivity?
A)
Copper
B)
Iron
C)
Wood
D)
Plastic
Option A is correct: Copper.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
If net force is zero, the body:
A)
stops
B)
accelerates
C)
moves with constant velocity
D)
changes direction
Option B is correct: accelerates.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
If mechanical advantage is less than velocity ratio, the machine has:
A)
No friction
B)
Friction present
C)
Ideal condition
D)
Infinite work
Option B is correct: Friction present.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Partition walls divide:
A)
Floors
B)
Rooms
C)
Roofs
D)
Foundations
Correct answer: B — Rooms
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Mortising machine is used for:
A)
Tenon cutting
B)
Mortise cutting
C)
Sawing
D)
Polishing
Correct answer: B — Mortise cutting
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Cabinet shelves are supported by:
A)
Nails
B)
Screws
C)
Cleats
D)
Putty
Correct answer: C — Cleats
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Estimation of materials helps to:
A)
Reduce cost
B)
Waste wood
C)
Delay work
D)
Increase labour
Option D is correct: Increase labour.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Hard board surface is:
A)
Rough
B)
Uneven
C)
Porous
D)
Smooth
Option C is correct: Porous.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Counter top surface should be:
A)
Rough
B)
Smooth
C)
Uneven
D)
Soft
Correct answer: B — Smooth
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Sanding between coats ensures:
A)
Thickness
B)
Smoothness
C)
Colour
D)
Strength
Correct answer: B — Smoothness
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Furniture for classroom includes:
A)
Sofa
B)
Bed
C)
Desk and bench
D)
Cupboard
Option C is correct: Desk and bench.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Plywood resists warping because:
A)
Single grain
B)
Cross layers
C)
Thickness
D)
Colour
Option B is correct: Cross layers.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Estimation includes cost of:
A)
Timber only
B)
Labour only
C)
Material and labour
D)
Tools only
Option C is correct: Material and labour.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Wooden stair slope is decided by:
A)
Height
B)
Width
C)
Rise and tread
D)
Length
Correct answer: C — Rise and tread
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Sanding machine is used to:
A)
Smooth surfaces
B)
Cut timber
C)
Drill holes
D)
Shape wood
Correct answer: A — Smooth surfaces
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Door fittings include:
A)
Hinges and locks
B)
Sandpaper
C)
Paint
D)
Putty
Correct answer: A — Hinges and locks
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Wax polish gives:
A)
Matt finish
B)
Rough finish
C)
Hard coat
D)
Thick layer
Correct answer: A — Matt finish
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Wooden stairs consist of:
A)
Treads and risers
B)
Beams only
C)
Columns
D)
Rafters
Correct answer: A — Treads and risers
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
The thickness of plywood is measured in:
A)
Cm
B)
Inch
C)
Mm
D)
Meter
Option D is correct: Meter.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Wood turning is performed between:
A)
Two chucks
B)
Two centres
C)
Two blades
D)
Two rollers
Option A is correct: Two chucks.
ITI Instructor • 2026 • Paper-IV (Technical Paper-II)
Wood finishes protect from:
A)
Fire
B)
Moisture
C)
Insects only
D)
Heat
Correct answer: B — Moisture
