The condition of a machine can be determined using_________ severity charts.

The condition of a machine can be determined using_________ severity charts.
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Ans- Vibration
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In energy method for finding frequency of the system A The sum of kinetic and potential energy is constant B The sum of kinetic and potential energy is zero C Frequency cannot be determined by energy method D None of the mentioned

Description : In energy method for finding frequency of the system A The sum of kinetic and potential energy is constant B The sum of kinetic and potential energy is zero C Frequency cannot be determined by energy method D None of the mentioned

Last Answer : A The sum of kinetic and potential energy is constant

A mass of 1 kg is attached to two identical springs each with stiffness k = 20 kN/m as shown in the figure. Under frictionless condition, the natural frequency of the system in Hz is close to * 1 point (A) 32 (B) 23 (C) 16 (D) 11

Description : A mass of 1 kg is attached to two identical springs each with stiffness k = 20 kN/m as shown in the figure. Under frictionless condition, the natural frequency of the system in Hz is close to * 1 point (A) 32 (B) 23 (C) 16 (D) 11

Last Answer : (A) 32

Which of the following condition should be satisfied in the design of a vibration absorber ? A) Natural frequency of the auxiliary system should be equal to the natural frequency of the main system B) Natural frequency of the auxiliary system should be equal to the half natural frequency of the main systemC) Natural frequency of the auxiliary system should be fall in between natural frequency of the main system and the frequency of excitation D) Natural frequency of the auxiliary system should be twice natural frequency of the main system

Description : Which of the following condition should be satisfied in the design of a vibration absorber ? A) Natural frequency of the auxiliary system should be equal to the natural frequency of the main ... D) Natural frequency of the auxiliary system should be twice natural frequency of the main system

Last Answer : A) Natural frequency of the auxiliary system should be equal to the natural frequency of the main system

The condition to be fulfilled in the design of spring for vibration isolation of a system where excitation is due to a rotating unbalance is A) ω << ωn B) ω = ωn C) ω > ωn D) ω >> ωn

Description : The condition to be fulfilled in the design of spring for vibration isolation of a system where excitation is due to a rotating unbalance is A) ω ωn D) ω >> ωn

Last Answer : A) ω

Untuned viscous damper ( houdaille Damper) is used with variable speed machine being control by ratio can be given by A) (damper inertia) / (main system inertia) B) (main system inertia) / (damper inertia) C) (2 X damper inertia) / (main system inertia) D) (2 X main system inertia) / (damper inertia)

Description : Untuned viscous damper ( houdaille Damper) is used with variable speed machine being control by ratio can be given by A) (damper inertia) / (main system inertia) B) (main system inertia) / (damper inertia) ... X damper inertia) / (main system inertia) D) (2 X main system inertia) / (damper inertia)

Last Answer : A) (damper inertia) / (main system inertia)

Which of the following systems produce a vibration in the foundation? (A) Coupled machine(B) Uncoupled machine (C) Balanced machine (D) Unbalanced machine

Description : Which of the following systems produce a vibration in the foundation? (A) Coupled machine(B) Uncoupled machine (C) Balanced machine (D) Unbalanced machine

Last Answer : (D) Unbalanced machine

Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. A 25.62 rad/sec B 20.78 rad/sec C 14.4 rad/sec D 15.33 rad/sec

Description : Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. A 25.62 rad/sec B 20.78 rad/sec C 14.4 rad/sec D 15.33 rad/sec

Last Answer : A 25.62 rad/sec

Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. A 21 rad/sec B 25.62 rad/sec C 20.22 Hz D 3.15 Hz

Description : Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. A 21 rad/sec B 25.62 rad/sec C 20.22 Hz D 3.15 Hz

Last Answer : B 25.62 rad/sec

During vibrations any machine has unbalanced force of 392N and if it transmitted force of magnitude 58.3N then transmissibility value is A 0.481 B 0.822 C 0.148 D 0.296

Description : During vibrations any machine has unbalanced force of 392N and if it transmitted force of magnitude 58.3N then transmissibility value is A 0.481 B 0.822 C 0.148 D 0.296

Last Answer : C 0.148

A vibrating machine of 100 kg is mounted on a rubber pad which has stiffness of 500 N/m. Determine force transmitted to the foundation if the unbalanced force 500 N acts on it. The frequency ratio (ω/ω n ) is 1.5 and ξ = 0.5 A. 461.62 N B. 400.23 N C. 450 N D. Insufficient data

Description : A vibrating machine of 100 kg is mounted on a rubber pad which has stiffness of 500 N/m. Determine force transmitted to the foundation if the unbalanced force 500 N acts on it. The frequency ratio (ω/ω n ) is 1.5 and ξ = 0.5 A. 461.62 N B. 400.23 N C. 450 N D. Insufficient data

Last Answer : A. 461.62 N

Untuned viscous damper ( houdaille Damper) is used with variable speed machine being control by ratio can be given by A) (damper inertia) / (main system inertia) B) (main system inertia) / (damper inertia) C) (2 X damper inertia) / (main system inertia) D) (2 X main system inertia) / (damper inertia)

Description : Untuned viscous damper ( houdaille Damper) is used with variable speed machine being control by ratio can be given by A) (damper inertia) / (main system inertia) B) (main system inertia) / (damper inertia) ... X damper inertia) / (main system inertia) D) (2 X main system inertia) / (damper inertia)

Last Answer : A) (damper inertia) / (main system inertia)

Dynamic vibration absorber is suitable for A) Constant speed machine B) Varying speed machine C) zero speed machine D) None of the above

Description : Dynamic vibration absorber is suitable for A) Constant speed machine B) Varying speed machine C) zero speed machine D) None of the above

Last Answer : A) Constant speed machine

Calculate natural frequency of damped vibration, if damping factor is 0.52 and A natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. ( A )25.62 rad/sec ( B )20.78 rad/sec ( C )14.4 rad/sec ( D )15.33 rad/sec

Description : Calculate natural frequency of damped vibration, if damping factor is 0.52 and A natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. ( A )25.62 rad/sec ( B )20.78 rad/sec ( C )14.4 rad/sec ( D )15.33 rad/sec

Last Answer : ( A )25.62 rad/sec

The life of a machine follows the classic____________ curve.

Description : The life of a machine follows the classic____________ curve.

Last Answer : Ans- Bathtub

Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequ the system is 30 rad/sec which consists of machine supported on springs and dashpots. a. 25.62 rad/secb. 20.78 rad/sec c. 14.4 rad/sec d. 15.33 rad/sec

Description : Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequ the system is 30 rad/sec which consists of machine supported on springs and dashpots. a. 25.62 rad/secb. 20.78 rad/sec c. 14.4 rad/sec d. 15.33 rad/sec

Last Answer : a. 25.62 rad/sec

When a periodic disturbing force is applied to a machine, the force is transmitted to the ___________ by the means of spring. (A) dampers (B) foundation (C) mass (D) none of the above

Description : When a periodic disturbing force is applied to a machine, the force is transmitted to the ___________ by the means of spring. (A) dampers (B) foundation (C) mass (D) none of the above

Last Answer : (B) foundation

Which of the following systems produce a vibration in the foundation? (A) Coupled machine (B) Uncoupled machine (C) Balanced machine (D) Unbalanced machine

Description : Which of the following systems produce a vibration in the foundation? (A) Coupled machine (B) Uncoupled machine (C) Balanced machine (D) Unbalanced machine

Last Answer : (D) Unbalanced machine

When a periodic disturbing force is applied to a machine, the force is transmitted to the foundation by the means of spring. a) True b) False

Description : When a periodic disturbing force is applied to a machine, the force is transmitted to the foundation by the means of spring. a) True b) False

Last Answer : a) True

Which of the following systems produce a vibration in the foundation? a) Unbalanced machine b) Balanced machine c) Coupled machine d) Uncoupled machine

Description : Which of the following systems produce a vibration in the foundation? a) Unbalanced machine b) Balanced machine c) Coupled machine d) Uncoupled machine

Last Answer : a) Unbalanced machine

Rage Against the Machine Vs Joe McElderry.... Is X-factor domination of the ********* charts a bad thing?

Description : Rage Against the Machine Vs Joe McElderry.... Is X-factor domination of the Christmas charts a bad thing?

Last Answer : I’ve purchased Rage! So have 4 of the lads around me in the workshop!

Does the word "triage" have a "damage control" meaning, or is it really only about sequencing by severity?

Description : Does the word "triage" have a "damage control" meaning, or is it really only about sequencing by severity?

Last Answer : I see triage as relevant in an emergency context - we have to triage the wounded soldiers to take care of the critically injured ones first . In other words, it is immediate and critical. Damage control ... . As in we have to do damage control after the CEO was arrested for raping his secretary .

Is there a direct relationship between medication dosage and side effect severity?

Description : Is there a direct relationship between medication dosage and side effect severity?

Last Answer : I would suspect that side effects would increase, but at a directly proportional rate rather than exponential. It probably depends on the medication, but don’t take my word on this, I’m no expert

What is the intersection of the assesed probability and severity of a hazard called in the rm process?

Description : What is the intersection of the assesed probability and severity of a hazard called in the rm process?

Last Answer : Need answer

What is the effective severity level outcome for the applied policy if the default severity level is set to HIGH 1 custom severity level is set to LOW and the other custom is set to MEDIUM.?

Description : What is the effective severity level outcome for the applied policy if the default severity level is set to HIGH 1 custom severity level is set to LOW and the other custom is set to MEDIUM.?

Last Answer : Need answer

Which of the following statement(s) is/are true concerning tumor necrosis factor (TNF)? a. TNF is a product of activated macrophages secreted in response to contact with endotoxin or lipopolysaccharide, antibody complexes, or inflammatory stimuli b. The liver and gut appear to be a major source of TNF following hypoperfusion c. Circulating levels of TNF correlate well with severity of tissue injury in shock d. Recently completed clinical trials of anti-TNF antibody in septic patients shows a marked improvement in survival

Description : Which of the following statement(s) is/are true concerning tumor necrosis factor (TNF)? a. TNF is a product of activated macrophages secreted in response to contact with endotoxin or ... completed clinical trials of anti-TNF antibody in septic patients shows a marked improvement in survival

Last Answer : Answer: a, b Tumor necrosis factor (TNF), a protein product of activated macrophages, is secreted in response to contact with endotoxin or lipopolysaccharide, antibody complexes, or ... patients utilizing infusion of monoclonal antibodies to the TNF molecule have shown no overall survival benefit

Sepsis causes a marked metabolic response. Which of the following statement(s) is/are true concerning the metabolic response to sepsis? a. Oxygen consumption is increased in the face of infection b. In a patient with a maximal metabolic rate secondary to trauma, the presence of infection will increase the rate further c. Metabolic rate increases at a rate of approximately 10% for each increase of 1°C in central temperature d. The extent of increase in oxygen consumption relates to the severity of the infection

Description : Sepsis causes a marked metabolic response. Which of the following statement(s) is/are true concerning the metabolic response to sepsis? a. Oxygen consumption is increased in the face of infection ... d. The extent of increase in oxygen consumption relates to the severity of the infection

Last Answer : Answer: a, c, d Oxygen consumption is usually elevated in the infected patient. The extent of this increase is related to the severity of the infection, with peak elevations reaching 50% ... suggest that the metabolic rate increases 10% to 13% for each elevation of 1°C in central temperature

Which of the following statements are true of the multiple organ dysfunction syndrome (MODS)? A. The “two-hit” model proposes that secondary MODS may be produced when even a relatively minor second insult reactivates, in a more amplified form, the systemic inflammatory response that was primed by an initial insult to the host. B. The systemic inflammatory response syndrome (SIRS), shock due to sepsis or SIRS, and MODS may be regarded as a continuum of illness severity. C. Prolonged stimulation or activation of Kupffer cells in the liver is thought to be a critical factor in the sustained, uncontrolled release of inflammatory mediators. D. The incidence of MODS in intensive care units has decreased owing to increased awareness, prevention, and treatment of the syndrome.

Description : Which of the following statements are true of the multiple organ dysfunction syndrome (MODS)? A. The two-hit model proposes that secondary MODS may be produced when even a relatively ... intensive care units has decreased owing to increased awareness, prevention, and treatment of the syndrome.

Last Answer : Answer: ABC DISCUSSION: MODS is part of a clinical continuum that begins with the systemic inflammatory response syndrome, which is the host's stress response to any major insult such ... pathogenesis of MODS, the incidence of MODS continues to increase without a significant improvement in outcome

In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three lamps will return to their normal brightness indicating that the bulbs are not burnt out C. lamps B and C will dim lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor

Description : In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three ... lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor

Last Answer : Answer: B

Choose the correct statement regarding thermal cracking. (A) Moderate changes in operating temperature does not change the depth of cracking (B) Increased residence time results in the decreased severity of cracking (C) At low pressure, the yield of lighter hydrocarbons are more (D) Greater depth of cracking gives lower octane number gasoline

Description : Choose the correct statement regarding thermal cracking. (A) Moderate changes in operating temperature does not change the depth of cracking (B) Increased residence time results in the decreased ... of lighter hydrocarbons are more (D) Greater depth of cracking gives lower octane number gasoline

Last Answer : (D) Greater depth of cracking gives lower octane number gasoline

The severity of 2005 earthquake in Pakistan on Richter scale was ? A. 6.9 B. 7.6 (Answer) C. 7.1 D. none

Description : The severity of 2005 earthquake in Pakistan on Richter scale was ? A. 6.9 B. 7.6 (Answer) C. 7.1 D. none

Last Answer : B. 7.6 (Answer)

Which of the following states is characterized by a decline in intellectual functioning? a) Dementia Dementia is an acquired syndrome in which progressive deterioration in global intellectual abilities is of such severity that it interferes with the person’s customary occupational and social performance. b) Depression Depression is a mood disorder that disrupts quality of life. c) Delirium Delirium is often called acute confusional state. d) Delusion Delusion is a symptom of psychoses.

Description : Which of the following states is characterized by a decline in intellectual functioning? a) Dementia Dementia is an acquired syndrome in which progressive deterioration in global intellectual abilities is of ... is often called acute confusional state. d) Delusion Delusion is a symptom of psychoses.

Last Answer : a) Dementia Dementia is an acquired syndrome in which progressive deterioration in global intellectual abilities is of such severity that it interferes with the person’s customary occupational and social performance.

The aim of genomic medicine is a) improving predictions about individuals’ susceptibility to diseases Predictions regarding the time of their onset, their extent and eventual severity as well as which treatments or medications are likely to be most effective or harmful are the focus of genomic medicine. b) reproduction The focus of genomic medicine is broader than the reproduction of cells. c) cure of disease The focus of genomic medicine is broader than the cure of disease. d) cloning Genomic medicine is gene-based health care.

Description : The aim of genomic medicine is a) improving predictions about individuals' susceptibility to diseases Predictions regarding the time of their onset, their extent and eventual severity as well as which ... broader than the cure of disease. d) cloning Genomic medicine is gene-based health care.

Last Answer : a) improving predictions about individuals’ susceptibility to diseases Predictions regarding the time of their onset, their extent and eventual severity as well as which treatments or medications are likely to be most effective or harmful are the focus of genomic medicine.

The WHO guidelines for treatment of tuberculosis with short course chemotherapy under the DOTS strategy categorise patients on the basis of the following: A. Site and severity of the disease B. Sputum smear positivity/negativity C. History of earlier antitubercular drug use D. All of the above

Description : The WHO guidelines for treatment of tuberculosis with short course chemotherapy under the DOTS strategy categorise patients on the basis of the following: A. Site and severity of the disease B. Sputum smear positivity/negativity C. History of earlier antitubercular drug use D. All of the above

Last Answer : D. All of the above

Choose the correct statement about severity of side effects to oral iron medication: A. Ferrous salts are better tolerated than ferric salts B. Complex organic salts of iron are better tolerated than inorganic salts C. Liquid preparations of iron are better tolerated than tablets D. Tolerability depends on the quantity of elemental iron in the medication

Description : Choose the correct statement about severity of side effects to oral iron medication: A. Ferrous salts are better tolerated than ferric salts B. Complex organic salts of iron are better ... better tolerated than tablets D. Tolerability depends on the quantity of elemental iron in the medication

Last Answer : D. Tolerability depends on the quantity of elemental iron in the medication

Which of the following adverse effects of levodopa has a delayed onset and increases in severity with continued therapy: A. Nausea and vomiting B. Postural hypotension C. Cardiac arrhythmia D. Abnormal movements

Description : Which of the following adverse effects of levodopa has a delayed onset and increases in severity with continued therapy: A. Nausea and vomiting B. Postural hypotension C. Cardiac arrhythmia D. Abnormal movements

Last Answer : D. Abnormal movements

Prophylactic therapy of migraine: A. Is recommended in all cases B. Benefits upto 70% patients of moderate to severe migraine C. Needs to be continued lifelong without interruption D. Reduces the severity but increases the frequency of migraine attacks

Description : Prophylactic therapy of migraine: A. Is recommended in all cases B. Benefits upto 70% patients of moderate to severe migraine C. Needs to be continued lifelong without interruption D. Reduces the severity but increases the frequency of migraine attacks

Last Answer : B. Benefits upto 70% patients of moderate to severe migraine

Classify lubricating oil using viscosity (SAE) and load severity (API) rating.

Description : Classify lubricating oil using viscosity (SAE) and load severity (API) rating.

Last Answer : 1.On the basis of Viscosity : i. Lubricating Oils Classify in terms of Viscosity at -18 0C or in cold climates. a) SAE 5W b) SAE 10W c) SAE 20 W ii. Lubricating Oils Classify ... sum oxidation stability & anti- scuff c. protection d. SC, SD & SE: Meets automotive manufactures specifications. 

State the factors on which severity of electric shock depends.

Description : State the factors on which severity of electric shock depends. 

Last Answer : The severity of shock depends on following factors.  1. Magnitude voltage of the system.  2. The period or duration for which the area of contact with lives part.  3. It is also depends on ... 200mA  May cause fibration of heart  6 Above -200mA Causes death, severe burns 

The severity of line to ground and three phase faults at the terminals of an unloaded

Description : The severity of line to ground and three phase faults at the terminals of an unloaded synchronous generator is to be same. If the terminal voltage is 1.0 pu, Z1=Z2=j0.1 p.u. and Z0= j0.05 p.u. for the alternator, then the required inductive ... a) 0.05 p.u. (b) 0.0166 p.u. (c) 0.1 p.u. (d) 0.15 p.u.

Last Answer : The severity of line to ground and three phase faults at the terminals of an unloaded synchronous generator is to be same. If the terminal voltage is 1.0 pu, Z1=Z2=j0.1 p.u. and Z0= j0.05 p.u. for the alternator, then the required inductive reactance for neutral grounding is 0.0166 p.u.

Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______ * 1 point (A) Centripetal forces (B) Centrifugal forces (C) Friction forces (D) Inertia forces

Description : Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______ * 1 point (A) Centripetal forces (B) Centrifugal forces (C) Friction forces (D) Inertia forces

Last Answer : (D) Inertia forces

If the spring mass system with m and spring stiffness k is taken to very high altitude, the natural frequency of longitudinal vibrations * 1 point (A) increases (B) decreases (C) remain unchanged (D) may increase or decrease depending upon the value of the mass

Description : If the spring mass system with m and spring stiffness k is taken to very high altitude, the natural frequency of longitudinal vibrations * 1 point (A) increases (B) decreases (C) remain unchanged (D) may increase or decrease depending upon the value of the mass

Last Answer : (C) remain unchanged

The speed at which the shaft runs so that the additional deflection from the axis of rotation of the shaft becomes infinite, is known as _________ * 1 point (A) Whirling speed (B) Rotational speed (C) Stabilizing speed (D) Reciprocating speed

Description : The speed at which the shaft runs so that the additional deflection from the axis of rotation of the shaft becomes infinite, is known as _________ * 1 point (A) Whirling speed (B) Rotational speed (C) Stabilizing speed (D) Reciprocating speed

Last Answer : (A) Whirling speed

Frequency is equal to ______. * 1 point (A) time period (B) 1/time period (C) *time period (D) /time period

Description : Frequency is equal to ______. * 1 point (A) time period (B) 1/time period (C) *time period (D) /time period

Last Answer : (B) 1/time period

What are deterministic vibrations? * (A)Vibrations caused due to known exciting force (B)Vibrations caused due to unknown exciting force (c) Vibrations which are aperiodic in nature (D) None of the above

Description : What are deterministic vibrations? * (A)Vibrations caused due to known exciting force (B)Vibrations caused due to unknown exciting force (c) Vibrations which are aperiodic in nature (D) None of the above

Last Answer : (A)Vibrations caused due to known exciting force

Equilibrium Method is in accordance with which of the following principle? * 1 point (A) Taylor's principle (B) D'Alembert's principle (C) Energy conservation principle (D) None of the above

Description : Equilibrium Method is in accordance with which of the following principle? * 1 point (A) Taylor's principle (B) D'Alembert's principle (C) Energy conservation principle (D) None of the above

Last Answer : (B) D'Alembert's principle

According to which method, maximum kinetic energy at mean position is equal to maximum potential energy at extreme position? * 1 point (A) Energy method (B) Rayleigh's method (C) Equilibrium method (D) All of the above

Description : According to which method, maximum kinetic energy at mean position is equal to maximum potential energy at extreme position? * 1 point (A) Energy method (B) Rayleigh's method (C) Equilibrium method (D) All of the above

Last Answer : (B) Rayleigh's method

What are discrete parameter systems? *1 point (A) Systems which have infinite number of degree of freedom (B) Systems which have finite number of degree of freedom (C) Systems which have no degree of freedom (D) None of the above

Description : What are discrete parameter systems? *1 point (A) Systems which have infinite number of degree of freedom (B) Systems which have finite number of degree of freedom (C) Systems which have no degree of freedom (D) None of the above

Last Answer : (B) Systems which have finite number of degree of freedom

What is meant by critical damping coefficient? * 1 point (A) Frequency of damped free vibrations is less than zero (B). The motion is a periodic in nature (C). Both a. and b. (D). None of the above

Description : What is meant by critical damping coefficient? * 1 point (A) Frequency of damped free vibrations is less than zero (B). The motion is a periodic in nature (C). Both a. and b. (D). None of the above

Last Answer : (C). Both a. and b.

The equivalent stiffness of spring connected in parallel having stiffnesses k1 and k2 can be written as * 1 point (A)(1/k1) + (1/k2) (B) (1/k1) - (1/k2) (C) k1 + k2 (D) None of the above

Description : The equivalent stiffness of spring connected in parallel having stiffnesses k1 and k2 can be written as * 1 point (A)(1/k1) + (1/k2) (B) (1/k1) - (1/k2) (C) k1 + k2 (D) None of the above

Last Answer : (C) k1 + k2