Question 1

The bearing characteristic number shown in the graph is directly proportional to the unit bearing pressure.

Accepted Answer

A) True 
 B)False  False

Question 2

The tensile stress in the flywheel rim due to the centrifugal force acting on the rim is given by

Accepted Answer

A) ? v2/4 
B) ? v2/2 
C) 3? v2/4 
D) ? v2 
A) ? v2/4 
B) ? v2/2 
C) 3? v2/4 
D) ? v2 D

Question 3

Hypoid gears have the following characteristics.

Accepted Answer

A) curved teeth 
B) mounted on non -parallel non intersecting shafts 
C) efficiency of 97% 
D) all of the mentioned 
A) curved teeth 
B) mounted on non -parallel non intersecting shafts 
C) efficiency of 97% 
D) all of the mentioned D

Question 4

Deep groove ball bearings creates a lot of noise.

Accepted Answer

A) yes 
B) they create very less noise 
C) depends on the application 
D) no reference frame for comparison is mentioned 
A) yes 
B) they create very less noise 
C) depends on the application 
D) no reference frame for comparison is mentioned

Question 5

If E = Mean kinetic energy of the flywheel, CS = Coefficient of fluctuation of speed and ? E = Maximum fluctuation of energy, then

Accepted Answer

A) ?e = e / cs 
B) ?e = e2 × cs 
C) topic 4.2 flywheels considering stresses in rims and arms for engines and punching machines 
A) ?e = e / cs 
B) ?e = e2 × cs 
C) topic 4.2 flywheels considering stresses in rims and arms for engines and punching machines

Question 6

The longest leaf in a leaf spring is called centre leaf.

Accepted Answer

A) it is called middle leaf 
B) it is called master leaf 
C) yes 
D) none of the listed 
A) it is called middle leaf 
B) it is called master leaf 
C) yes 
D) none of the listed

Question 7

A_______bearing supports the load acting along the axis of the shaft.

Accepted Answer

A) thrust 
B) radial 
C) longitudinal 
D) transversal 
A) thrust 
B) radial 
C) longitudinal 
D) transversal

Question 8

In steam and gas turbines, rolling contact bearings are used.

Accepted Answer

A) True 
 B)False

Question 9

The coefficient of fluctuation of speed is the_______ of maximum fluctuation of speed and the mean speed.

Accepted Answer

A) product 
B) ratio 
C) sum 
D) difference 
A) product 
B) ratio 
C) sum 
D) difference

Question 10

What is the amount of sea coal needed in cast irons for small casting moulding sands?

Accepted Answer

A) 1% 
B) 2% 
C) 3% 
D) 4% 
A) 1% 
B) 2% 
C) 3% 
D) 4%

Question 11

In angular contact bearings,_______  bearings are required to take thrust load in both directions.

Accepted Answer

A) 1 
B) 4 
C) 2 
D) 3 
A) 1 
B) 4 
C) 2 
D) 3

Question 12

In a four stroke cycle engine camshaft revolves at_______the crank speed.

Accepted Answer

A) two times 
B) half 
C) four times 
D) three times 
A) two times 
B) half 
C) four times 
D) three times

Question 13

Which of the following cannot take radial load?

Accepted Answer

A) cylindrical roller bearing 
B) taper roller bearing 
C) thrust ball bearing 
D) none of the listed 
A) cylindrical roller bearing 
B) taper roller bearing 
C) thrust ball bearing 
D) none of the listed

Question 14

In hypoid bevel gears, shafts may continue past each other.

Accepted Answer

A) True 
 B)False

Question 15

If uncompressed length of spring is 40mm and number of coils 10mm, then pitch of coil is?

Accepted Answer

A) 4 
B) 40/9 
C) 40/11 
D) none of the mentioned 
A) 4 
B) 40/9 
C) 40/11 
D) none of the mentioned

Question 16

A single transverse weld is preferred over double transverse fillet weld.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following isn't the property of taper roller?

Accepted Answer

A) high rigidity 
B) easy dismantling 
C) take low radial and heavy loads 
D) all are the properties of tapper roller 
A) high rigidity 
B) easy dismantling 
C) take low radial and heavy loads 
D) all are the properties of tapper roller

Question 18

Crankshafts are usually constructed by

Accepted Answer

A) casting 
B) drop forging 
C) drawing 
D) extrusion 
A) casting 
B) drop forging 
C) drawing 
D) extrusion

Question 19

There are_______  common types of bevel gears.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 20

Among punching and drilling, punching is safer.

Accepted Answer

A) True 
 B)False

The bearing characteristic number shown in the graph is directly proportional to the unit bearing pressure.

The tensile stress in the flywheel rim due to the centrifugal force acting on the rim is given by

Hypoid gears have the following characteristics.

Deep groove ball bearings creates a lot of noise.

If E = Mean kinetic energy of the flywheel, CS = Coefficient of fluctuation of speed and ? E = Maximum fluctuation of energy, then

The longest leaf in a leaf spring is called centre leaf.

A_______bearing supports the load acting along the axis of the shaft.

In steam and gas turbines, rolling contact bearings are used.

The coefficient of fluctuation of speed is the_______ of maximum fluctuation of speed and the mean speed.

What is the amount of sea coal needed in cast irons for small casting moulding sands?

In angular contact bearings,_______ bearings are required to take thrust load in both directions.

In a four stroke cycle engine camshaft revolves at_______the crank speed.

Which of the following cannot take radial load?

In hypoid bevel gears, shafts may continue past each other.

If uncompressed length of spring is 40mm and number of coils 10mm, then pitch of coil is?

A single transverse weld is preferred over double transverse fillet weld.

Which of the following isn't the property of taper roller?

Crankshafts are usually constructed by

There are_______ common types of bevel gears.

Among punching and drilling, punching is safer.

Mechanical Engineering

Engineering Design and Analysis

Joints and Joining Techniques

Bonding Theory, Springs, and Flywheels

Mechanical Engineering Bearings and Gears

Mechanical Engineering Gears, Lubrication, Welding, Stress, and Design

Mechanical Engineering Shafts, Keys, and Joints

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Exam 8: Mechanical Engineering : Punching Vs Drilling, Casting Sands, Leaf Springs

The bearing characteristic number shown in the graph is directly proportional to the unit bearing pressure.

The tensile stress in the flywheel rim due to the centrifugal force acting on the rim is given by

Hypoid gears have the following characteristics.

Deep groove ball bearings creates a lot of noise.

If E = Mean kinetic energy of the flywheel, CS = Coefficient of fluctuation of speed and ? E = Maximum fluctuation of energy, then

The longest leaf in a leaf spring is called centre leaf.

A_______bearing supports the load acting along the axis of the shaft.

In steam and gas turbines, rolling contact bearings are used.

The coefficient of fluctuation of speed is the_______ of maximum fluctuation of speed and the mean speed.

What is the amount of sea coal needed in cast irons for small casting moulding sands?

In angular contact bearings,_______ bearings are required to take thrust load in both directions.

In a four stroke cycle engine camshaft revolves at_______the crank speed.

Which of the following cannot take radial load?

In hypoid bevel gears, shafts may continue past each other.

If uncompressed length of spring is 40mm and number of coils 10mm, then pitch of coil is?

A single transverse weld is preferred over double transverse fillet weld.

Which of the following isn't the property of taper roller?

Crankshafts are usually constructed by

There are_______ common types of bevel gears.

Among punching and drilling, punching is safer.

Mechanical Engineering

Engineering Design and Analysis

Joints and Joining Techniques

Bonding Theory, Springs, and Flywheels

Mechanical Engineering Bearings and Gears

Mechanical Engineering Gears, Lubrication, Welding, Stress, and Design

Mechanical Engineering Shafts, Keys, and Joints

Filters