991. Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
A. eutectic cast irons
B. hypo-eutectic cast irons
C. hyper-eutectic cast irons
D. none of these

992. The relative humidity is defined as
A. the mass of water vapour present in 1 m3 of dry air
B. the mass of water vapour present in 1 kg of dry air
C. the ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure.
D. the ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure

993. The aim of value engineering is to
A. find the depreciation value of a machine
B. determine the selling price of a product
C. minimise the cost without change in quality of the product
D. all of the above

994. 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 a worker

995. Gantt chart is used for
A. inventory control
B. material handling
C. production schedule
D. machine repair schedules

996. The main object of scientific layout is
A. to produce better quality of product
B. to utilise maximum floor area
C. to minimise production delays
D. all of these

997. In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively
A. water and water
B. water and lithium bromide
C. ammonia and lithium bromide
D. ammonia and water

998. As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature.
A. same as
B. lower than
C. higher man

999. The optimum effective temperature for human comfort is
A. higher in winter than in summer
B. lower in winter than in summer
C. same in winter and summer
D. not dependent on season

1000. In value engineering, the term value refers to
A. manufacturing cost of the product
B. selling price of the product
C. total cost of the product
D. utility of the product

NOTE
IF YOU THINK ANY OF THE MCQ ABOVE IS WRONG.
PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
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