Multiple Choice Questions (MCQ) on Forging
Multiple Choice Questions (MCQ) on Forging
In forging, the compressive forces can be exerted by
- Hammer
- Press
- An upsetting machine
- Rollers
- i & ii
- i, ii & iii
- i, ii & iv
- All of these
(Ans:d)
The type of force applied through die in forging is
- Tensile force
- Compressive force
- Shear force
- Any of the above
(Ans:b)
The suitable temperature range for forging steel with carbon content 0.7% is
- 800 – 950°C
- 1000 – 1150°C
- 1100 – 1250°C
- 1300 – 1450°C
(Ans:b)
Which of the following properties is not improved by hot forging?
- elastic limit
- work hardening
- ultimate tensile strength
- brittleness
(Ans:d)
Hot forging of a metal is caused out at
- Melting point
- Above recrystallization temperature
- Below recrystallization temperature
- At recrystallization temperature
(Ans:b)
Which of the following is not true for hot forging?
- The forgings have great resistance to impact and fatigue loads
- Forging distorts the previously created unidirectional fibre
- Forged parts have uniform density
- Forging operation is suitable for complex shapes
(Ans:d)
Which of the following open die forging operation reduces the height of a forging and increases its diameter?
- Cogging
- Upsetting
- Expanding
- Hollow forging
(Ans:b)
The term applied to the first operation in an impression die forging is called
- Fullering
- Blocking
- Trimming
- Coining
(Ans:a)
In forging die (without ejectors), to facilitate removal of forgings from die, the draft for inside force must be
- 1 – 4°
- 4 – 7°
- 7 – 10°
- 10 – 13°
(Ans:c)
The material which is squeezed out between the faces of the dies is known as
- Slag
- Flash
- Scale
- Misrun
(Ans:b)