1. The cold chisels are made by ?

drawing

rolling

piercing

forging

Answer: forging

Explanation:


2. A taper provided on the pattern for its easy and clean withdrawl from the mould is known as ?

machining allowance

draft allowance

shrinkage allowance

distortion allowance

Answer: draft allowance

Explanation:


3. The difference between the upper limit and lower limit of a dimension is called ?

nominal size

basic size

actual size

tolerance

Answer: tolerance

Explanation:


4. A file with 20 teeth in 25 mm is called ?

rough file

bastard file

second cut file

smooth file

Answer: rough file

Explanation:


5. The process of increasing the cross-section of a bar at the expense of its length, is called ?

drawing down

upsetting

spinning

peening

Answer: upsetting

Explanation:


6. The maximum flame temperature occurs ?

at the outer cone

at the inner cone

between the outer and inner cone

at the torch tip

Answer: at the inner cone

Explanation:


7. Metal patterns are used for ?

small castings

large castings

complicated castings

large scale production of castings

Answer: large scale production of castings

Explanation:


8. In blanking operation, the clearance is provided on ?

punch

die

half on the punch and half on the die

either on punch or die depending upon designer's choice

Answer: punch

Explanation:


9. A pattern maker's shrinkage rule considers ?

all pattern allowances

only shrinkage allowance

all materials to be cast

all materials of the pattern

Answer: only shrinkage allowance

Explanation:


10. In shielded arc welding ?

large electrode is used

welding rod coated with slag is used

welding rod coated with fluxing material is used

none of the above

Answer: welding rod coated with fluxing material is used

Explanation: