Chapter 9 · MCQ Read Mode

Industrial Facility Design and Maintenance

A layout in which all lathes are placed in one section and all milling machines in another is a:

The layout most suitable for mass production of a standard product is the:

Shipbuilding and large turbine erection normally use a:

A cellular (group technology) layout is designed around:

A major disadvantage of the product layout is that:

In systematic layout planning, the closeness rating 'X' means that two activities:

The inputs to systematic layout planning are:

The chart that shows the number of moves between each pair of departments is the:

The commonest quantitative criterion for comparing layout alternatives is:

CRAFT is a computerised layout technique that:

The centre-of-gravity method for facility location minimises:

A north-light (saw-tooth) roof is used in factory buildings to:

An industry that loses much weight during processing tends to be located:

According to Heinrich's domino theory, removing which domino prevents the injury?

Heinrich's accident ratio is usually quoted as:

Studies attribute the majority of industrial accidents to:

In the hierarchy of controls, the most effective measure is:

Personal protective equipment is regarded as:

HAZOP is a technique that examines a process using:

A permit-to-work system is essential for:

Lock-out/tag-out procedures are applied to:

The generally accepted noise exposure limit for an 8-hour working day is:

A factory records 4 lost-time injuries in 400 000 man-hours. Its frequency rate (per million man-hours) is:

Severity rate in accident statistics is calculated using:

The international management-system standard for occupational health and safety is:

Employers' duties regarding workplace safety in Nepal are laid down mainly in the:

Availability of equipment is given by:

Maintenance carried out on the basis of measured vibration and temperature is:

The pillar of TPM in which machine operators perform routine cleaning, lubrication and inspection is:

Reliability-centred maintenance selects the maintenance strategy based on:

The most important property of a lubricating oil is its:

The commonly used general-purpose grease consistency grade is:

In hydrodynamic lubrication:

Over-greasing a rolling-element bearing usually causes:

A dominant vibration at twice the running speed (2×) usually indicates:

Infrared thermography in electrical maintenance is used mainly to detect:

The breakdown voltage (BDV) test and dissolved gas analysis are carried out on:

The interval between the point where a failure becomes detectable and actual failure is called the:

A quality circle typically consists of:

Reliability is defined as the probability that an item performs its required function:

During the useful-life period of the bathtub curve, the failure rate is:

For a constant failure rate λ, the reliability at time t is:

If the failure rate of a component is 0.002 per hour, its MTBF is:

The reliability of an item at a time equal to its MTBF (constant failure rate) is about:

Three components with reliabilities 0.9, 0.95 and 0.98 are connected in series. The system reliability is about:

Two identical components each of reliability 0.9 are connected in parallel. The system reliability is:

In a reliability block diagram, an AND gate in the corresponding fault tree represents components that are:

Burn-in testing of components is carried out to remove failures belonging to the:

In the Weibull distribution, a shape parameter β greater than 1 indicates:

The Weibull characteristic life η is the time by which:

Preventive replacement of a component is justified only when its failure rate is:

Redundant units sharing a common power supply may still fail together because of:

One tonne of refrigeration is equivalent to:

The COP of a refrigerator is defined as:

The theoretical maximum COP of a refrigerator working between T₁ and T₂ (T₂ < T₁) is:

The air refrigeration (Bell-Coleman) system is used in aircraft mainly because:

The expansion process in a vapour compression system is:

Sub-cooling of the liquid refrigerant before the expansion device:

Cryogenics deals with temperatures below about:

Ammonia as a refrigerant is designated as:

CFC refrigerants such as R-12 were phased out because they:

Quick freezing of food is preferred to slow freezing because it:

The automatic expansion valve maintains a constant:

The thermostatic expansion valve controls refrigerant flow so as to maintain a constant:

Setting the superheat of a TEV too low may cause:

The temperature at which moisture begins to condense from air cooled at constant pressure is the:

Sensible heating of air on a psychrometric chart is represented by:

Evaporative cooling of air follows a line of approximately constant:

The sensible heat factor (SHF) is the ratio of:

The bypass factor of a cooling coil represents the fraction of air that:

Which of the following is NOT one of the six factors affecting thermal comfort?

Comfortable indoor relative humidity for air conditioning is generally taken as:

The PMV-PPD comfort indices are associated with:

Indoor carbon dioxide concentration is used mainly as an indicator of:

Symptoms such as headache and irritation that disappear after leaving a building indicate:

The most effective first step in controlling indoor air quality is:

Which of the following is usually the largest component of the cooling load in a building with large windows?

In calculating the heating (winter) load of a building, internal and solar gains are usually: