Question 1

Odd numbers of the teeth are cut by which indexing?

Direct indexing
Angular indexing
Compound indexing
Differential indexing

Answer

Correct Option: C

Question 2

The thickness of the gear tooth is measured

outside the pitch circle
on the pitch circle
on the bottom of the tooth
from flank to flank of the tooth

Answer

Correct Option: B

Question 3

To join two compartments in rail, the thread being used is

V-thread
knuckle thread
acme thread
square thread

Answer

Correct Option: C

Question 4

What type of bearing is used in fans?

Taper roller bearing
Roller bearing
Thrust bearing
Ball beaing

Answer

Correct Option: C

Question 5

Which cutter is used to make concave surface on a work piece?

Angle cutter
Convex cutter
Corner rounding cutter
Radices cutter

Answer

Correct Option: D

Question 6

Coupling is used for

power transfer from one shaft to another
load transfer from one shaft to another
pressure transfer from one shaft to another
temperature transfer from one shaft to another

Answer

Correct Option: A

Question 7

Tri square is used to check the job

lengthwise
on 45⁰
depth wise
on 90⁰

Answer

Correct Option: D

Question 8

The least count of Vernier height gauge will be

0.1 mm
0.01 mm
0.02 mm
0.001 mm

Answer

Correct Option: A

Question 9

Least count is

least measurement that a measuring instrument can measure
maximum measurement that a measuring instrument can measure
difference of maximum and minimum measurement that a measuring instrument can measure
sum of maximum and minimum measurements that a measuring instrument can measure

Answer

Correct Option: A

Question 10

How many tool heads can be mounted on planer machine?

4
1
3
2

Answer

Correct Option: A

Question 11

Ratio of worm & worm wheel in dividing head is given by

12:1
24:1
40:1
80:1

Answer

Correct Option: C

Question 12

Identify the operation that is not normally done on a lathe.

Knurling
Threading
Tapering
Cutting a square

Answer

Correct Option: C

Question 13

A spur gear is

simple gear with straight teeth cut parallel to the cutter axis
simple gear with straight teeth cut perpendicular to the cutter axis
simple gear with straight teeth cut at an angle to the cutter axis
none of these

Answer

Correct Option: A

Question 14

Which of the following operations can not be done on a milling machine?

Cutting splines
Cutting involute gear
Cutting a helical groove
Gear shaping

Answer

Correct Option: B

Question 15

The lip angle of a twist drill for drilling metals is

110⁰
118⁰
60⁰
80⁰

Answer

Correct Option: B

Question 16

Choose the correct work holding device from the following for turning a round piece.

Self-centring chuck
4-Jaw independent
Face plate
Angle plate

Answer

Correct Option: A

Question 17

In a metering outside micrometer, the distance moved on spindle during one rotation of thimble is

0.5 mm
1 mm
0.1 mm
none of these

Answer

Correct Option: A

Question 18

Select the wrong statement in case of a planer.

Top surface as well as the side surface can be simultaneously machined.
Reversible motor drive can be used.
Heavy beds of machines can be machined.
Good accuracy and surface finish can be obtained.

Answer

Correct Option: D

Question 19

Which of the following is a false statement in surface grinding?

Axis of rotation of wheel is parallel to the surface being ground.
The job is held on a table which can be moved.
The speed of grinding wheel can be increased only upto a limit.
Truing of wheel is done for proper balancing of the wheel.

Answer

Correct Option: D

Question 20

While cutting a screw of 4 mm pitch on a lathe having lead screw of 6 mm pitch, the driver gear and the driven gear have ____ teeth respectively.

40 & 60
40 & 80
60 & 40
none of these

Answer

Correct Option: A

Question 21

The limits of holes are 25.000 and 25.021 and that of a shafts are 25.022 and 25.035. The type of fit is

interference
clearance
transition
none of these

Answer

Correct Option: A

Question 22

Chain pulley block is used

for lifting heavy machines
for transmission of power
in conveyor system
none of these

Answer

Correct Option: A

Question 23

Which of the following is true?

Feed is the amount of cut given into the job.
Cutting angle of a lathe tool is the angle between the top face and flank.
Slab mill is used for machining flat surface parallel to the axis of the cutter.
Universal milling machine can work as a horizontal as well as vertical milling machine.

Answer

Correct Option: D

Question 24

In forging for grooving or drawing down, the tool used is

fuller
set hammer
flatter
swage

Answer

Correct Option: A

Question 25

Which of the following is not true in case of high pressure gas welding?

The work surface is melted and joining is done by pressure.
Gas is stored in cylinder at high pressure.
Equal-pressure type welding torch is used.
Gas pressure is regulated as per thickness of the work.

Answer

Correct Option: A

Description: Electronic-Mechanical
Number of Questions: 25
Created by: Divya Kade
Tags: electronic-mechanical IES (Indian Engineering Services) Mechanical Engineering - ME

Electronics-Mechanical

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