Question87:-A bench vice has the following type of thread
A:-metric thread
B:-acme thread
C:-buttress thread
D:-square thread
Correct Answer:- Option-B
Question88:-All the thread characteristics can be measured precisely with
A:-Thread gauge
B:-Screw pitch gauge
C:-Micrometer with anvil
D:-Tool room microscope
Correct Answer:- Option-D
Question89:-A body cooling from 80°C to 70°C takes 10 minutes when left exposed to environmental conditions. If the body
is to cool further from 70°C to 60°C under the same external conditions, it will take
A:-more than 10 minutes
B:-same time of 10 minutes
C:-less than 10 minutes
D:-none of these
Correct Answer:- Option-A
Question90:-Which of the following is considered as comfort condition in air-conditioning?
A:-15°C DBT and 40% RH
B:-20°C DBT and 60% RH
:-25°C DBT and 70% RH
D:-None of these
Correct Answer:- Option-D
Question91:-Mechanical strain gauges can measure
A:-static and dynamic strains
B:-dynamic strains only
C:-static strains only
D:-static and quasi-static strains
Correct Answer:- Option-D
Question92:-Efficiency of chimney draught is of the order of
A:-less than 1%
-3%

D:-8-10%
Correct Answer:- Option-A
Question93:-A step cone pulley is provided on a lathe to
A:-reverse the direction of spindle rotation
B:-change the spindle speed
C:-drive the lead screw
D:-give desired direction of movement of lathe carriage
Correct Answer:- Option-B
Question94:-Loam sand comprises of
A:-40% of clay and 10% moisture
B:-50% of clay and 10% moisture
C:-80% of clay and 20% moisture
D:-50% of clay and 18% moisture
Correct Answer:- Option-A
Question95:-In tool signature, nose radius is indicated
A:-in the middle
the beginning
C:-not indicated
D:-at the end
Correct Answer:- Option-D
Question96:-The primary tool force used in calculating the total power consumption in machining is
A:-radial force
-frictional force
C:-tangential force