Browse topic-based Manufacturing Engineering practice sets.
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Effective teamwork and high productivity are good indications of positive
reinforcement
productivity goals
horizontal relationships
socializing
Correct Answer: B — productivity goals
Explanation:
In general, we know that Effective teamwork yields high productivity which is a good indications of positive productivity goals.
A profit maximizing firm will
All of the above
Use less of an input
Operates where marginal revenue equals marginal cost.
Increase in production
Correct Answer: A — All of the above
Explanation:
A firm maximizes profit by operating where marginal revenue equals marginal cost. They use less of an input in producing more products to increse their profits.
Allowance of hole and shaft assembly is equal to
Product of Maximum limit
Sum of maximum metal limit
Difference of maximum metal limit
None of the mentioned
Correct Answer: C — Difference of maximum metal limit
Explanation:
Allowance of hole and shaft assembly is equal to the difference of maximum metal limit.
Minimum material limit of hole is
Smallest diameter of hole
Minimum diameter of shaft
Maximum diameter of hole
Maximum diameter of shaft
Correct Answer: A — Smallest diameter of hole
Explanation:
Minimum material limit of hole is largest diameter of hole. Maximum material limit of hole is smallest diameter of hole.
Minimum material limit of shaft is
Smallest diameter of hole
Minimum diameter of shaft
Maximum diameter of hole
Maximum diameter of shaft
Correct Answer: B — Minimum diameter of shaft
Explanation:
Minimum material limit of shaft is minimum diameter of shaft. Maximum material limit of shaft is maximum diameter of shaft.
Maximum material limit of hole is
Minimum diameter of shaft
Maximum diameter of hole
Maximum diameter of shaft
Smallest diameter of hole
Correct Answer: D — Smallest diameter of hole
Explanation:
Maximum material limit of hole is smallest diameter of hole. Minimum material limit of hole is largest diameter of hole.
Maximum material limit of shaft is
Maximum diameter of shaft
Minimum diameter of shaft
Maximum diameter of hole
Smallest diameter of hole
Correct Answer: A — Maximum diameter of shaft
Explanation:
Maximum material limit of shaft is maximum diameter of shaft. Minimum material limit of shaft is minimum diameter of shaft.
In an assembly of hole and shaft, smallest shaft was having diameter of 50.2 mm and largest hole was having diameter of 50.0 mm. Minimum interference in mm will be
0.2
0.1
0.3
0.4
Correct Answer: A — 0.2
Explanation:
Minimum interference is the difference between size of smallest shaft and size of biggest hole. Maximum Interference is the difference between size of largest haft size and smallest hole size.
In an assembly of hole and shaft, minimum shaft diameter is 49.0 mm and maximum hole diameter is 48.9 mm. It is an example of
None of the mentioned
Interference fit
Transition fit
Clearance fit
Correct Answer: B — Interference fit
Explanation:
Interference fit. Maximum Interference is the difference between size of largest haft size and smallest hole size.
In an assembly of hole and shaft, largest shaft was having diameter of 49.4 mm and smallest hole was having diameter of 49.2 mm. Maximum interference in mm will be
0.2
0.1
0.3
0.4
Correct Answer: A — 0.2
Explanation:
Maximum Interference is the difference between size of largest haft size and smallest hole size. Minimum interference is the difference between size of smallest shaft and size of biggest hole.
In an assembly of hole and shaft, smallest shaft was having diameter of 49.74 mm and largest hole was having diameter of 50.00 mm. Maximum clearance in mm will be
0.23
0.26
0.32
0.12
Correct Answer: B — 0.26
Explanation:
Maximum clearance is given by sum of size of biggest hole and smallest shaft. Minimum clearance is the difference between size of smallest hole and size of biggest shaft.
In an assembly of hole and shaft, smallest hole was having diameter of 49.04 mm and largest shaft was having diameter of 49.00 mm. Minimum clearance in mm will be
.04
.001
.08
.03
Correct Answer: A — .04
Explanation:
Minimum clearance is the difference between size of smallest hole and size of biggest shaft. Maximum clearance is given by sum of size of biggest hole and smallest shaft.
For joining two insoluble materials such as iron and silver which of the following filler material is used?
Aluminium
Cobalt
Zinc
Tin
Correct Answer: D — Tin
Explanation:
Tin is used for joining two insoluble materials such as iron and silver because it is soluble in both the parent material (i.e. silver and iron).
When two insoluble materials such as iron and silver are supposed to join, which of the following joining process is used?
Either homogenous or heterogenous
Heterogenous
Homogenous
Autogenous
Correct Answer: B — Heterogenous
Explanation:
When two insoluble materials such as iron and silver are joined then heterogenous joining process is used.
Which of the following is a type of heterogeneous welding?
Gas
Soldering
Arc
Solid phase
Correct Answer: B — Soldering
Explanation:
Certain welding processes such as plasma arc welding, friction stir welding, laser beam welding, etc. can be performed in heterogenous mode.
Which of the following is a type of homogenous welding?
Brazing
Resistance
Gas
Solid phase
Correct Answer: C — Gas
Explanation:
Gas metal arc welding (GMAW), manual metal arc welding (MMAW), flux cored arc welding (FCAW), etc. always use consumable filler material and thus can be performed in homogenous mode.
In which of the following joining process the filler material used is different as the parent material?
Either homogenous or heterogenous
Autogenous
Homogenous
Heterogenous
Correct Answer: D — Heterogenous
Explanation:
In heterogenous joining process the filler material used is different as the parent material.
In which of the following joining process, the filler material used is the same as the parent material?
Heterogenous
Autogenous
Either homogenous or heterogenous
Homogenous
Correct Answer: D — Homogenous
Explanation:
In homogenous joining process the filler material used is the same as the parent material.
Which of the following is a type of autogenous welding?
Brazing
Gas
Arc
Resistance
Correct Answer: D — Resistance
Explanation:
Resistance welding is inherently autogenous as there is no convenient way to apply a filler material.
In which of the following welding process no filler material is added during joining?
Autogenous
Heterogenous
Either homogenous or heterogenous
Homogenous
Correct Answer: A — Autogenous
Explanation:
In autogenous welding process no filler material is added during joining, the filler material can be supplied by melting the base metal.
