Engineering Metrology Practice Test 1

1. Which of the following is correct about vernier height gauges?

The scriber should preferably be of more depth than jaw

The base is lapped up to an accuracy of 0.05 mm

Width of interval between adjacent lines should be 1/2 or 1/3 times of the length of shortest graduations

The perpendicular distance between scale graduations and vernier graduations should be more than 0.01 mm

2. Which of the following option is true for given statement?
Statement 1: For gauging the radius, a light source is used with radius gauge.
Statement 2: Pitch of the threads can be measured by radius gauge.

T, T

F, T

T, F

F, F

3. What is the range in which distance between the centres varies?

100 to 200 mm

500 to 1500 mm

300 to 400 mm

200 to 400 mm

4. Where the spirit level is present in a combination set?

Scale

Squaring head

Centre head

There is no spirit level on combination set

5. What is the purpose of baffle plates?

Support angle plates

Support surface plates

Protect casting from direct flame heat

Used as an accessory with surface plates

6. Which V block is used for checking triangle effect?

V block with 30-degree angle is used

V block with 60-degree angle is used

V block with 120-degree angle is used

V block with 90-degree angle is used

7. Which of the following is incorrect for vernier height gauge?

Removable clamps are used

These gauges can be used for scribing purposes

Both the surfaces of measuring jaw should be at 45^o to the base

Surface plate is used as datum surface for measurements

8. Which of the following option is correct about given statements?
S1: Clamping pallets allows easy fixing of workpieces.
S2: In annealing furnace, angle plates are heating up to 10 degree Celsius.
S3: Straight edges can be used for checking the straightness of the parts.

F, T, F

T, F, T

F, F, T

T, T, F

9. What is another name of blades of radius gauge?

Cutter

Leaf

Petal

Scale

10. What is the bearing area of V-Blocks?

10%

20%

15%