MCQ Questions with Answers on Production Engineering
1- The ability of the molding material to withstand the high temperatures of molten metal so that it does not cause fusion is known as
(A) Hot strength
(B) Dry strength
(C) Green strength
2- In sand-casting, when it is not possible to get very fine details on the surface then some modifications are done in a pattern termed as:
(A) Pattern allowance
(B) Shrinkage allowance
(C) Machine allowance
(D) Elimination of details
3- Which of the following processes is suitable for making hollow parts with thin sections?
(C) Blow moulding
(D) Injection moulding
4- Which of the following is generally used in core sand?
(A) Linseed oil
(C) Fire clay
5- The following welding method does not require filler metal.
(A) Resistance seam welding
(B) Oxy-acetylene welding
(C) Gas metal arc welding
(D) Submerged arc welding
6- Which of the following is not the slag trap method used in sand moulding?
(A) Runner extension
(B) Pouring basin
(C) Strainer core
(D) Bottom gate
7- Which of the following main problem(s) is (are) addressed by a cutting fluid?
(A) heat generation at the shear zone and friction zone
(B) friction at the tool chip and tool work interfaces
(C) both (A) and (B)
(D) ease of cutting
8- Tool life in turning will decrease by maximum extent if the following is doubled.
(A) tool rake angle
(B) depth of cut
(D) cutting velocity
9- Which of the following relation(s) between machining operation and units is (are) correct
(A) turning – mm/revolution
(B) shaping – mm/stroke
(C) milling – mm/minute
(D) all of the above
10- Which of the following statement is correct for material removal in Electron Beam Machining?
(A) Melting and vaporization due to thermal effect of impingement of high energy electron
(B) Chemical etching by the high energy electron
(C) Mechanical erosion due to impact of high of energy electrons
(D) Sputtering due to high energy electrons
1-(D), 2-(D), 3-(C), 4-(A), 5-(A), 6-(D), 7-(C), 8-(D), 9-(D), 10-(A)