Top 550+ Solved Production Engineering MCQ Questions Answer
Q. Helical grooves are provided on a drill bit
a. To provide long cutting edge
b. To guide the cutting top
c. To reduce the cost of the drill bit
d. To provide a passage for the coolant
e. To remove chips
Q. A soldering iron is used mainly to
a. Heat the metal
b. Melt the solder
c. Heat the flux
d. None of these
e. None of the above
Q. Which of the folliwjng is not an abrading process?
a. Grinding
b. Lapping
c. Tumbling
d. Honing
e. Parting off
Q. The binding material used in cemented carbide tools is
a. Sulphur
b. Carbon
c. Chromium
d. Cobalt
e. Nickel
Q. Chromatography is
a. The method of determining alloying elements in steels
b. The method of analysis of flame types
c. The method of determination of smoke density of exhaust gases
d. The method of determining each constituent in a complex vapour or gas mixture
e. The method of analysis of flame colours for temperature determination
Q. Which of the following drilling machine is used for mass production?
a. Radial drilling machine
b. Gang drilling machine
c. Parting off
d. Pistol drilling machine
e. Bench drilling machine
Q. While machining copper alloys with HSS tools, the cutting speed is
a. 100 to 150 m/min
b. 50 to 100 m/min
c. 200 to 300 m/min
d. Parting off
e. 20 to 30 m/min
Q. A gold point is
a. The pointed on a instrument a reading beyond which may be dangerous to system
b. The pointed location spot gold plated
c. The temperature of equilibrium between liquid gold and gold vapour at normal atmospheric pressure
d. The temperature at which gold melts
e. The temperature of equilibrium between solid gold and liquid gold at normal atmospheric pressure
Q. Which bond is commonly used in grinding wheel
a. Silicate bond
b. Shellac bond
c. Resinoid bond
d. Vitrified bond
e. Rubber bond
Q. The percentage of carbon that must be present in steel before it can be hardened noticeably is
a. 0.20 percent
b. 0.30 percent
c. 0.70 percent
d. 0.10 percent
e. 0.05 percent
Q. While turning which of the following material back rake angle is the largest?
a. Parting off
b. Hard steel
c. Aluminium
d. Cast iron
e. Monel matal
Q. Coolant used while turning cast iron is
a. Lard oil
b. Soluble oil
c. Kerosene
d. Soda water
e. None of the above
Q. Which of the following is always die casted?
a. Rollers for bearings
b. Carburettor body
c. Parting off
d. Pump shafts
e. Balls for ball mills
Q. Materials that produce continuous chips are
a. Cast iron
b. Low carbon steel
c. Brass
d. None of the above
e. Parting off
Q. The gases used in tungsten inert gas welding are
a. Argon and helium
b. Helium and neon
c. Ozone and neon
d. Atomic hydrogen and neon
e. Carbonsioxide and nitrogen