Nov 18

1. Which is false statement about case hardening? Case hardening is done by

a. Electroplating

b. Cyaniding

c. Induction hardening

d. Nitriding

e. Flame hardening




2. Gun metal contains

a. 70% copper and 30% zinc

b. 90% copper and 10% tin

c. 85-92% copper and rest tin with little lead and nickel

d. 70-78% copper and rest tin

e. 85-92% copper and rest zinc



85-92% copper and rest tin with little lead and nickel

3. Which of the following is not a casting defect

a. Hot tear

b. Blow hole

c. Scab

d. Decarburization

e. Shift




4. Draft on pattern for casting is

a. Shrinkage allowance

b. Identification number marked on it

c. Taper to facilitate its removal from mould

d. Increase in size of cavity due to shaking of pattern

e. For machining allowance



Taper to facilitate its removal from mould

5. The increase in hardness due to cold working is called

a. Cold hardening

b. Hot hardening

c. Work hardening

d. Age hardening

e. Induction hardening



Work hardening

You might also like

Mechanical Objective Questions | Mechanical Engineering Objective Type
1. The purpose of jigs and fixtures are toa. Increased production rateb. Increased machining...

Mechanical Engineering Multiple Choice Questions | Mechanical Objective Questions And Answers Pdf
1. Pick up the wrong statement? A refrigent should havea. Low specific heat of liquidb. High...

Mechanical Objective Questions | Mechanical Objective Type
 1. Which of the following variable controls the physical properties of a perfect gas?a. Pressureb....

Mechanical Engineering Objective | Mechanical Engineering Online Test
1. The impact strength of an material is an index of itsa. Toughnessb. Tensile strengthc....


3 Responses to “Mechanical Engineering Objective Type Question And Answers | Objective Mechanical”

  1. mehedi says:

    read details….power plant engineering

  2. K.ANANDKUMAR says:

    i want mechanical engineering objective free on line test…K.ANANDKUMAR. 8341945954

  3. krishnan says:

    i want mechanical engineering walk in details.. guideme..