1. The Jig, which doesn’t have a base but can be set over the job to be drilled is called _________ ?

box jig

sandwich jig

channel jig

trunnion jig

Answer: channel jig

Explanation:


2. Which device hold, supports, locates and also guide the cutting too for operation ?

jig

fixture

machine vice

chuck

Answer: jig

Explanation:


3. A point to point control system is suitable only for one of the following applications ?

drilling

turning

filling

grinding

Answer: drilling

Explanation:


4. Jig are preferred over fixture in which operation ?

milling

turning

knurling

drilling

Answer: drilling

Explanation:


5. Jig are not use ?

milling

reaming

tapping

drilling

Answer: drilling

Explanation:


6. Usually drill jig is not clamped to the drilling machine table. Which among the following is the reason for this ?

it is rigid enough for this operation

it is easy for operation

number of holes of various sizes are normally being drilled in different setting

it is a more time consuming device

Answer: it is rigid enough for this operation

Explanation:


7. Which among the following is a locator used for location from internal diameter ?

solid supports

pin type locator

vee locator

nest locator

Answer: pin type locator

Explanation:


8. Which among the following statements is not correct ?

jig is used for planning operation

jig is used for drilling operation

jig is used for indexing operation

jig is used for boring operation

Answer: jig is used for planning operation

Explanation:


9. Fixed renewable bushings are used when ?

many a holes of various sizes are to be drilled on a jig in different settings

more than one operation has to be performed through the same location of the jig

one operation is to be performed in each hole but several bushings must be used during the life of the jig

no bushings change is required

Answer: one operation is to be performed in each hole but several bushings must be used during the life of the jig

Explanation:


10. Tolerance on jig should be ?

5% of the tolerance on the job

10% of the tolerance on the job

20 to 50% of the tolerance on the job

100% of the tolerance on the job

Answer: 20 to 50% of the tolerance on the job

Explanation: