Home
Current Affairs January 2024

What is the correct answer?

4

A connecting rod should be

A. Strong in buckling about X-axis

B. Strong in buckling about Y-axis

C. Equally strong in buckling about X-axis and Y-axis

D. Any one of the above

Correct Answer :

C. Equally strong in buckling about X-axis and Y-axis


Related Questions

What is the correct answer?

4

A fast and loose pulley drive is used when

A. Shafts are arranged parallel and rotate in the opposite directions

B. Shafts are arranged parallel and rotate in the same directions

C. Shafts are arranged at right angles and rotate in one definite direction

D. Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

What is the correct answer?

4

The width of the pulley should be __________ width of the belt.

A. Equal to

B. Less than

C. Greater than

D. None of these

What is the correct answer?

4

In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

A. 2d

B. 3d

C. 4d

D. 5d

What is the correct answer?

4

The process extensively used for making bolts and nuts is

A. Hot piercing

B. Extrusion

C. Cold peening

D. Cold heading

What is the correct answer?

4

The static tooth load should be __________ the dynamic load.

A. Equal to

B. Less than

C. Greater than

D. None of these

What is the correct answer?

4

According to I.B.R., the factor of safety of riveted joint should not be less than

A. 1

B. 2

C. 3

D. 4

What is the correct answer?

4

The strength of a riveted joint is equal to

A. Tearing strength of plate (Pt)

B. Shearing strength of rivet (Ps)

C. Crushing strength of rivet (Pc)

D. Least value of Pt Ps and Pc

What is the correct answer?

4

Stress concentration is caused due to

A. Variation in properties of material from point to point in a member

B. Pitting at points or areas at which loads on a member are applied

C. Abrupt change of section

D. All of the above

What is the correct answer?

4

A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

A. 3.6 N/mm² compression

B. 3.6 N/mm² tension

C. 7.2 N/mm² compression

D. 7.2 N/mm² tension

What is the correct answer?

4

An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called

A. Addendum circle

B. Dedendum circle

C. Pitch circle

D. Clearance circle

What is the correct answer?

4

Belt slip may occur due to

A. Heavy load

B. Loose belt

C. Driving pulley too small

D. All of the above

What is the correct answer?

4

The ball bearings are provided with a cage

A. To reduce friction

B. To facilitate slipping of balls

C. To prevent the lubricant from flowing out

D. To maintain the balls at a fixed distance apart

What is the correct answer?

4

The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

A. εc + 2εl

B. c + εl

C. εc + εl²

D. εc² + εl

What is the correct answer?

4

A localised compressive stress at the area of contact between two members is known as

A. Tensile stress

B. Bending stress

C. Bearing stress

D. Shear stress

What is the correct answer?

4

Which of the following material has the maximum ductility?

A. Copper

B. Mild steel

C. Aluminium

D. Zinc

What is the correct answer?

4

The function of cutting oil when threading a pipe is to

A. Provide cooling action

B. Lubricate the dies

C. Help removes chips

D. All of the above

What is the correct answer?

4

According to Rankine's theory, the failure occurs at a point in a member

A. When the maximum shear stress in a biaxial stress system reaches the shear stress at elastic limit in a simple tension test

B. When the maximum principal stress in a biaxial stress system reaches the elastic limit of the material in a simple tension test

C. When the strain energy per unit volume in a biaxial stress system reaches the strain energy at the elastic limit per unit volume as determined from a simple tension test

D. When the maximum principal strain in a biaxial stress system reaches the strain at the elastic limit as determined from a simple tension test

What is the correct answer?

4

The value of stress concentration factor depends upon

A. Material and geometry of the part

B. Geometry of the part

C. Material of the part

D. None of these

What is the correct answer?

4

The application of third type levers is found in

A. Handle of a hand pump

B. Hand wheel of a punching press

C. Lever of a loaded safety valve

D. A pair of tongs

What is the correct answer?

4

For tight leakage joints, following type of thread is best suited

A. Metric

B. Buttress

C. Square

D. NPT (national pipe threads)

What is the correct answer?

4

A screw is said to be over hauling screw, if the

A. Friction angle is less than helix angle

B. Friction angle is more than helix angle

C. Friction angle is equal to helix angle

D. Efficiency of screw is 100%

What is the correct answer?

4

In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be

A. 0.96

B. 0.97

C. 0.98

D. 0.99

What is the correct answer?

4

An alien bolt is

A. Self locking bolt

B. Same as stud

C. Provided with hexagonal depression in head

D. Used in high speed components

What is the correct answer?

4

A spring is used to

A. Measure forces

B. Apply forces

C. Store energy

D. All of these

What is the correct answer?

4

Whether any core is required in wire ropes

A. Yes

B. No

C. Sometimes

D. Rarely

What is the correct answer?

4

A double strap butt joint (with equal straps) is

A. Always in single shear

B. Always in double shear

C. Either in single shear or double shear

D. Any one of these

What is the correct answer?

4

Cold working

A. Increases the fatigue strength

B. Decreases the fatigue strength

C. Has no influence on fatigue strength

D. Alone has no influence on fatigue strength

What is the correct answer?

4

The load cup of a screw jack is made separate from the head of the spindle to

A. Prevent the rotation of load being lifted

B. Enhance the load carrying capacity of the jack

C. Reduce the effort needed for lifting the working load

D. Reduce the value of frictional torque

What is the correct answer?

4

Pick up wrong statement. Fatigue strength can be increased by

A. Cold working

B. Shot peening

C. Grinding and lapping surface

D. Hot working

What is the correct answer?

4

When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

A. 10 times

B. 5 times

C. 15 times

D. 20 times