Question48:-A heat exchanger with heat transfer surface area ‘A’ and overall transfer coefficient ‘U‘ handles two fluids
of heat capacitors *"C_{max}"’ and *"C_{min}"* . The parameter NTU (number of transfer units) used in the analysis of
heat exchanger is specified as
A:-(AC_min)/(U)*
*(U)MAC_min)*

D:-* (AU)/(C_min)*
Correct Answer:- Option-D
Question49:-Effective temperature is that temperature of saturated air which gives the same degree of comfort as the air at
given
A:-DBT, WBT and incidental solar radiation
B:-WBT, incidental solar radiation and air flow rate
C:-DBT, solar temperature and air flow rate
D:-DBT, WBT and air flow rate
Correct Answer:- Option-D
Question50:-In a saturated air-water vapour mixture, the
A:-Dry bulb temperature is higher than the wet bulb temperature
B:-Dew point temperature is lower than the wet bulb temperature
C:-Dry bulb, wet bulb and dew point temperature are the same
D:-Dry bulb temperature is higher than the dew point temperature
Correct Answer:- Option-C
Question51:-The value engineering technique in which experts of the same rank assemble for product development is called
A:-Delphi
B:-Brain storming
C:-Morphological analysis
D:-Direct expert comparison
Correct Answer:- Option-B

Question52:-A gas engine has a swept volume of 300 cc and clearance volume of 25 cc. Its volumetric efficiency is 0.88 and
mechanical efficiency is 0.90. What is the volume to the mixture taken in, per stroke?

A:-248 cc
B:-252 cc
C:-264 cc
D:-286 cc
Correct Answer:- Option-C
Question53:-In time study, the rating factor is applied to determine
A:-Standard time of a job
B:-Merit rating of the worker
C:-Fixation of incentive rate
D:-Normal time of job
Correct Answer:- Option-B
Question54:-In Manufacturing management, the term "Dispatching" is used to describe
A:-Dispatch of sales order
B:-Dispatch of factory mail
:-Dispatch of finished product to the user
D:-Dispatch of work orders through shop floor
Correct Answer:- Option-D
Question55:-A slender shaft supported on two bearings at its ends carries a disc with an eccentricity ''e"' from the axis of

rotation. The critical speed of the shaft is N. If the disc is replaced by a second one of same weight but mounted with an
eccentricity "2e"'. Critical speed of the shaft in the second case is

A> (N)/(2>
B:-(N)/(sqrt(2))*
0
0:- 20
Correct Answer:- Option-B
Question56:-The gear train usually employed in clocks is a
A:-reverted gear train
B:-simple gear train
C:-sun and planet gear
D:-differential gear
Correct Answer:- Option-A