1. When the file is moved to and fro over the work, it is known as ?

cross filing

draw filing

pull and push filing

none of these

Answer: draw filing

Explanation:


2. For cutting brass, the hacksaw blade should have .................... teeth per 25 mm ?

14

24

32

40

Answer: 14

Explanation:


3. Most of the oxy-acetylene welding is done with ?

neutral flame

oxidising flame

carburising flame

all of these

Answer: neutral flame

Explanation:


4. The machining allowance provided on patterns depends upon ?

type of casting metal

size and shape of casting

method of casting used

all of these

Answer: all of these

Explanation:


5. A moving mandrel is used in ?

wire drawing

tube drawing

metal cutting

forging

Answer: tube drawing

Explanation:


6. Which of the following material can be used for making patterns ?

Aluminium

Wax

Lead

all of these

Answer: all of these

Explanation:


7. Swab is used for ?

smoothing and cleaning out depressions in the mould

cleaning the moulding sand

moistening the sand around the edge before removing pattern

reinforcement of sand in the top part of the moulding box

Answer: moistening the sand around the edge before removing pattern

Explanation:


8. In order to produce uniform packing of sand in the moulds, a ................... is used ?

sand slinger

squeezing machine

jolt machine

stripper plate machine

Answer: sand slinger

Explanation: