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WorksheetsMECHANICAL TECHNICAL QUIZ
Total questions: 25
Worksheet time: 4mins
The friction experienced by a body, when in motion, is known as
Rolling friction
Dynamic friction
Limiting friction
Static friction
The unit of force in S.I. system of units is
Dyne
Kilogram
Newton
Watt
The mechanical efficiency of an impulse turbine is
Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
Ratio of the actual work available at the turbine to the energy imparted to the wheel
Ratio of the Work done on the wheel to the energy of the jet
None of the above
The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
Outside micrometer
Inside micrometer
Depth gauge micrometer
Vernier caliper
The casting method adopted for ornaments and toys of non-ferrous alloys, is
Permanent mould casting
Slush casting
Die casting
Centrifugal casting
For the same compression ratio, the efficiency of dual combustion cycle is
Greater than Diesel cycle and less than Otto cycle
Less than Diesel cycle and greater than Otto cycle
Greater than Diesel cycle
Less than Diesel cycle.
The atomic mass of sulphur is
12
14
16
32
A cycle consisting of two isothermal and two isentropic processes, is known as
Carnot cycle
Stirling cycle
Ericsson cycle
Joule cycle
The materials used for cylinder block are
Cast iron and steel
Cast iron and aluminium alloy
Steel and aluminium alloy
Brass and steel
Which of the following is not an automobile ?
Motor cycle
Passenger car
Aeroplane
Truck
Thinner is added to the paint in order to
Make pigments and resin mix easily
Make paint film hard
Optimise its viscosity
None of these
The cutting tool in a milling machine is mounted on
Spindle
Arbor
Column
Knee
A twist drill is a
Side cutting tool
Front cutting tool
End cutting tool
None of these
Gear finishing operation is called
Shaping
Milling
Hobbing
Burnishing
Gantt chart is used for
Inventory control
Material handling
Production schedule
Machine repair schedules
In value engineering, the term value refers to
Manufacturing cost of the product
Selling price of the product
Total cost of the product
Utility of the product
The procedure of modifying work content to give more meaning and enjoyment to the job by involving employees in planning, organisation and control of their work, is termed as
Job enlargement
Job enrichment
Job rotation
Job evaluation
For handling materials during manufacture of cement, a __________ is widely used.
Belt conveyor
Bucket conveyor
Fork lift truck
Overhead crane.
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as
Angular bevel gears
Crown bevel gears
Internal bevel gears
Mitre gears
A screw is specified by its
Major diameter
Minor diameter
Pitch diameter
Pitch
Which of the following property is desirable in parts subjected to shock and impact loads?
Strength
Stiffness
Brittleness
Toughness
The austenitic stainless steel contains
18% chromium and 8% nickel
8% chromium and 18% nickel
14% chromium and 0.35% carbon
14% nickel and 0.35% carbon
The process which improves the machinability of steels, but lowers the hardness and tensile strength, is
Normalising
Full annealing
Process annealing
Spheroidising
In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the
Reynold's number
Grashoff's number
Grashoff's number
Prandtl number
Reynold's number Grashoff's number
The heat transfer from a hot body to a cold body is directly proportional to the surface area and difference of temperatures between the two bodies. This statement is called
First law of thermodynamics
Newton's law of cooling
Newton's law of heating
Stefan's law
